mariadb/sql/event_db_repository.cc

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2011-07-04 01:25:49 +02:00
/*
Copyright (c) 2006, 2011, Oracle and/or its affiliates.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
Many files: Changed header to GPL version 2 only client/mysqlslap.c: Changed header to GPL version 2 only include/atomic/nolock.h: Changed header to GPL version 2 only include/atomic/rwlock.h: Changed header to GPL version 2 only include/atomic/x86-gcc.h: Changed header to GPL version 2 only include/atomic/x86-msvc.h: Changed header to GPL version 2 only include/my_atomic.h: Changed header to GPL version 2 only include/my_trie.h: Changed header to GPL version 2 only include/my_vle.h: Changed header to GPL version 2 only include/mysql/plugin.h: Changed header to GPL version 2 only mysys/my_atomic.c: Changed header to GPL version 2 only mysys/my_getncpus.c: Changed header to GPL version 2 only mysys/my_memmem.c: Changed header to GPL version 2 only mysys/my_vle.c: Changed header to GPL version 2 only mysys/trie.c: Changed header to GPL version 2 only plugin/Makefile.am: Changed header to GPL version 2 only server-tools/instance-manager/IMService.h: Changed header to GPL version 2 only server-tools/instance-manager/WindowsService.h: Changed header to GPL version 2 only server-tools/instance-manager/exit_codes.h: Changed header to GPL version 2 only server-tools/instance-manager/user_management_commands.h: Changed header to GPL version 2 only sql/authors.h: Changed header to GPL version 2 only sql/contributors.h: Changed header to GPL version 2 only sql/event_data_objects.cc: Changed header to GPL version 2 only sql/event_data_objects.h: Changed header to GPL version 2 only sql/event_db_repository.cc: Changed header to GPL version 2 only sql/event_db_repository.h: Changed header to GPL version 2 only sql/event_queue.cc: Changed header to GPL version 2 only sql/event_queue.h: Changed header to GPL version 2 only sql/event_scheduler.cc: Changed header to GPL version 2 only sql/event_scheduler.h: Changed header to GPL version 2 only sql/events.cc: Changed header to GPL version 2 only sql/events.h: Changed header to GPL version 2 only sql/ha_ndbcluster_binlog.cc: Changed header to GPL version 2 only sql/ha_ndbcluster_binlog.h: Changed header to GPL version 2 only sql/ha_ndbcluster_tables.h: Changed header to GPL version 2 only sql/ha_partition.cc: Changed header to GPL version 2 only sql/ha_partition.h: Changed header to GPL version 2 only sql/item_xmlfunc.cc: Changed header to GPL version 2 only sql/item_xmlfunc.h: Changed header to GPL version 2 only sql/log.h: Changed header to GPL version 2 only sql/partition_element.h: Changed header to GPL version 2 only sql/partition_info.cc: Changed header to GPL version 2 only sql/partition_info.h: Changed header to GPL version 2 only sql/rpl_filter.cc: Changed header to GPL version 2 only sql/rpl_filter.h: Changed header to GPL version 2 only sql/rpl_injector.cc: Changed header to GPL version 2 only sql/rpl_injector.h: Changed header to GPL version 2 only sql/rpl_mi.cc: Changed header to GPL version 2 only sql/rpl_mi.h: Changed header to GPL version 2 only sql/rpl_rli.cc: Changed header to GPL version 2 only sql/rpl_rli.h: Changed header to GPL version 2 only sql/rpl_tblmap.cc: Changed header to GPL version 2 only sql/rpl_tblmap.h: Changed header to GPL version 2 only sql/rpl_utility.cc: Changed header to GPL version 2 only sql/rpl_utility.h: Changed header to GPL version 2 only sql/sql_binlog.cc: Changed header to GPL version 2 only sql/sql_partition.cc: Changed header to GPL version 2 only sql/sql_partition.h: Changed header to GPL version 2 only sql/sql_plugin.cc: Changed header to GPL version 2 only sql/sql_plugin.h: Changed header to GPL version 2 only sql/sql_servers.cc: Changed header to GPL version 2 only sql/sql_servers.h: Changed header to GPL version 2 only sql/sql_tablespace.cc: Changed header to GPL version 2 only sql/sql_yacc.yy.bak: Changed header to GPL version 2 only storage/Makefile.am: Changed header to GPL version 2 only storage/archive/Makefile.am: Changed header to GPL version 2 only storage/blackhole/Makefile.am: Changed header to GPL version 2 only storage/csv/Makefile.am: Changed header to GPL version 2 only storage/example/Makefile.am: Changed header to GPL version 2 only storage/federated/Makefile.am: Changed header to GPL version 2 only storage/innobase/handler/Makefile.am: Changed header to GPL version 2 only storage/ndb/include/kernel/signaldata/AllocNodeId.hpp: Changed header to GPL version 2 only storage/ndb/include/kernel/signaldata/CreateFilegroup.hpp: Changed header to GPL version 2 only storage/ndb/include/kernel/signaldata/CreateFilegroupImpl.hpp: Changed header to GPL version 2 only storage/ndb/include/kernel/signaldata/CreateObj.hpp: Changed header to GPL version 2 only storage/ndb/include/kernel/signaldata/DictObjOp.hpp: Changed header to GPL version 2 only storage/ndb/include/kernel/signaldata/DihFragCount.hpp: Changed header to GPL version 2 only storage/ndb/include/kernel/signaldata/DropFilegroup.hpp: Changed header to GPL version 2 only storage/ndb/include/kernel/signaldata/DropFilegroupImpl.hpp: Changed header to GPL version 2 only storage/ndb/include/kernel/signaldata/DropObj.hpp: Changed header to GPL version 2 only storage/ndb/include/kernel/signaldata/Extent.hpp: Changed header to GPL version 2 only storage/ndb/include/kernel/signaldata/LgmanContinueB.hpp: Changed header to GPL version 2 only storage/ndb/include/kernel/signaldata/PgmanContinueB.hpp: Changed header to GPL version 2 only storage/ndb/include/kernel/signaldata/RestoreContinueB.hpp: Changed header to GPL version 2 only storage/ndb/include/kernel/signaldata/RestoreImpl.hpp: Changed header to GPL version 2 only storage/ndb/include/kernel/signaldata/RouteOrd.hpp: Changed header to GPL version 2 only storage/ndb/include/kernel/signaldata/TsmanContinueB.hpp: Changed header to GPL version 2 only storage/ndb/include/ndbapi/NdbIndexStat.hpp: Changed header to GPL version 2 only storage/ndb/ndbapi-examples/mgmapi_logevent/mgmapi_logevent.cpp: Changed header to GPL version 2 only storage/ndb/ndbapi-examples/mgmapi_logevent_dual/mgmapi_logevent_dual.cpp: Changed header to GPL version 2 only storage/ndb/ndbapi-examples/ndbapi_async/ndbapi_async.cpp: Changed header to GPL version 2 only storage/ndb/ndbapi-examples/ndbapi_async1/ndbapi_async1.cpp: Changed header to GPL version 2 only storage/ndb/ndbapi-examples/ndbapi_event/ndbapi_event.cpp: Changed header to GPL version 2 only storage/ndb/ndbapi-examples/ndbapi_retries/ndbapi_retries.cpp: Changed header to GPL version 2 only storage/ndb/ndbapi-examples/ndbapi_scan/ndbapi_scan.cpp: Changed header to GPL version 2 only storage/ndb/ndbapi-examples/ndbapi_simple/ndbapi_simple.cpp: Changed header to GPL version 2 only storage/ndb/ndbapi-examples/ndbapi_simple_dual/ndbapi_simple_dual.cpp: Changed header to GPL version 2 only storage/ndb/ndbapi-examples/ndbapi_simple_index/ndbapi_simple_index.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/dbdih/printSysfile.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/dbtup/DbtupDiskAlloc.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/dbtup/DbtupVarAlloc.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/dbtup/Undo_buffer.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/dbtup/Undo_buffer.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/dbtup/tuppage.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/dbtup/tuppage.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/dbtux/DbtuxStat.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/diskpage.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/lgman.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/lgman.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/pgman.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/pgman.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/print_file.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/record_types.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/restore.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/restore.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/tsman.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/blocks/tsman.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/DLCFifoList.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/DLCHashTable.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/DynArr256.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/DynArr256.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/KeyTable2Ref.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/LinearPool.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/NdbdSuperPool.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/NdbdSuperPool.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/Pool.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/Pool.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/RWPool.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/RWPool.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/Rope.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/SLFifoList.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/WOPool.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/WOPool.hpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/bench_pool.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/ndbd_malloc_impl.cpp: Changed header to GPL version 2 only storage/ndb/src/kernel/vm/ndbd_malloc_impl.hpp: Changed header to GPL version 2 only storage/ndb/src/mgmsrv/ParamInfo.cpp: Changed header to GPL version 2 only storage/ndb/src/ndbapi/NdbIndexStat.cpp: Changed header to GPL version 2 only storage/ndb/test/ndbapi/testIndexStat.cpp: Changed header to GPL version 2 only storage/ndb/test/tools/listen.cpp: Changed header to GPL version 2 only storage/ndb/tools/restore/ndb_nodegroup_map.h: Changed header to GPL version 2 only strings/my_strchr.c: Changed header to GPL version 2 only unittest/mysys/base64-t.c: Changed header to GPL version 2 only unittest/mysys/bitmap-t.c: Changed header to GPL version 2 only unittest/mysys/my_atomic-t.c: Changed header to GPL version 2 only unittest/mytap/tap.c: Changed header to GPL version 2 only unittest/mytap/tap.h: Changed header to GPL version 2 only win/Makefile.am: Changed header to GPL version 2 only
2006-12-27 02:23:51 +01:00
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
2011-06-30 17:46:53 +02:00
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
MDEV-5120 Test suite test maria-no-logging fails The reason for the failure was a bug in an include file on debian that causes 'struct stat' to have different sized depending on the environment. This patch fixes so that we always include my_global.h or my_config.h before we include any other files. Other things: - Removed #include <my_global.h> in some include files; Better to always do this at the top level to have as few "always-include-this-file-first' files as possible. - Removed usage of some include files that where already included by my_global.h or by other files. client/mysql_plugin.c: Use my_global.h first client/mysqlslap.c: Remove duplicated include files extra/comp_err.c: Remove duplicated include files include/m_string.h: Remove duplicated include files include/maria.h: Remove duplicated include files libmysqld/emb_qcache.cc: Use my_global.h first plugin/semisync/semisync.h: Use my_pthread.h first sql/datadict.cc: Use my_global.h first sql/debug_sync.cc: Use my_global.h first sql/derror.cc: Use my_global.h first sql/des_key_file.cc: Use my_global.h first sql/discover.cc: Use my_global.h first sql/event_data_objects.cc: Use my_global.h first sql/event_db_repository.cc: Use my_global.h first sql/event_parse_data.cc: Use my_global.h first sql/event_queue.cc: Use my_global.h first sql/event_scheduler.cc: Use my_global.h first sql/events.cc: Use my_global.h first sql/field.cc: Use my_global.h first Remove duplicated include files sql/field_conv.cc: Use my_global.h first sql/filesort.cc: Use my_global.h first Remove duplicated include files sql/gstream.cc: Use my_global.h first sql/ha_ndbcluster.cc: Use my_global.h first sql/ha_ndbcluster_binlog.cc: Use my_global.h first sql/ha_ndbcluster_cond.cc: Use my_global.h first sql/ha_partition.cc: Use my_global.h first sql/handler.cc: Use my_global.h first sql/hash_filo.cc: Use my_global.h first sql/hostname.cc: Use my_global.h first sql/init.cc: Use my_global.h first sql/item.cc: Use my_global.h first sql/item_buff.cc: Use my_global.h first sql/item_cmpfunc.cc: Use my_global.h first sql/item_create.cc: Use my_global.h first sql/item_geofunc.cc: Use my_global.h first sql/item_inetfunc.cc: Use my_global.h first sql/item_row.cc: Use my_global.h first sql/item_strfunc.cc: Use my_global.h first sql/item_subselect.cc: Use my_global.h first sql/item_sum.cc: Use my_global.h first sql/item_timefunc.cc: Use my_global.h first sql/item_xmlfunc.cc: Use my_global.h first sql/key.cc: Use my_global.h first sql/lock.cc: Use my_global.h first sql/log.cc: Use my_global.h first sql/log_event.cc: Use my_global.h first sql/log_event_old.cc: Use my_global.h first sql/mf_iocache.cc: Use my_global.h first sql/mysql_install_db.cc: Remove duplicated include files sql/mysqld.cc: Remove duplicated include files sql/net_serv.cc: Remove duplicated include files sql/opt_range.cc: Use my_global.h first sql/opt_subselect.cc: Use my_global.h first sql/opt_sum.cc: Use my_global.h first sql/parse_file.cc: Use my_global.h first sql/partition_info.cc: Use my_global.h first sql/procedure.cc: Use my_global.h first sql/protocol.cc: Use my_global.h first sql/records.cc: Use my_global.h first sql/records.h: Don't include my_global.h Better to do this at the upper level sql/repl_failsafe.cc: Use my_global.h first sql/rpl_filter.cc: Use my_global.h first sql/rpl_gtid.cc: Use my_global.h first sql/rpl_handler.cc: Use my_global.h first sql/rpl_injector.cc: Use my_global.h first sql/rpl_record.cc: Use my_global.h first sql/rpl_record_old.cc: Use my_global.h first sql/rpl_reporting.cc: Use my_global.h first sql/rpl_rli.cc: Use my_global.h first sql/rpl_tblmap.cc: Use my_global.h first sql/rpl_utility.cc: Use my_global.h first sql/set_var.cc: Added comment sql/slave.cc: Use my_global.h first sql/sp.cc: Use my_global.h first sql/sp_cache.cc: Use my_global.h first sql/sp_head.cc: Use my_global.h first sql/sp_pcontext.cc: Use my_global.h first sql/sp_rcontext.cc: Use my_global.h first sql/spatial.cc: Use my_global.h first sql/sql_acl.cc: Use my_global.h first sql/sql_admin.cc: Use my_global.h first sql/sql_analyse.cc: Use my_global.h first sql/sql_audit.cc: Use my_global.h first sql/sql_base.cc: Use my_global.h first sql/sql_binlog.cc: Use my_global.h first sql/sql_bootstrap.cc: Use my_global.h first Use my_global.h first sql/sql_cache.cc: Use my_global.h first sql/sql_class.cc: Use my_global.h first sql/sql_client.cc: Use my_global.h first sql/sql_connect.cc: Use my_global.h first sql/sql_crypt.cc: Use my_global.h first sql/sql_cursor.cc: Use my_global.h first sql/sql_db.cc: Use my_global.h first sql/sql_delete.cc: Use my_global.h first sql/sql_derived.cc: Use my_global.h first sql/sql_do.cc: Use my_global.h first sql/sql_error.cc: Use my_global.h first sql/sql_explain.cc: Use my_global.h first sql/sql_expression_cache.cc: Use my_global.h first sql/sql_handler.cc: Use my_global.h first sql/sql_help.cc: Use my_global.h first sql/sql_insert.cc: Use my_global.h first sql/sql_lex.cc: Use my_global.h first sql/sql_load.cc: Use my_global.h first sql/sql_locale.cc: Use my_global.h first sql/sql_manager.cc: Use my_global.h first sql/sql_parse.cc: Use my_global.h first sql/sql_partition.cc: Use my_global.h first sql/sql_plugin.cc: Added comment sql/sql_prepare.cc: Use my_global.h first sql/sql_priv.h: Added error if we use this before including my_global.h This check is here becasue so many files includes sql_priv.h first. sql/sql_profile.cc: Use my_global.h first sql/sql_reload.cc: Use my_global.h first sql/sql_rename.cc: Use my_global.h first sql/sql_repl.cc: Use my_global.h first sql/sql_select.cc: Use my_global.h first sql/sql_servers.cc: Use my_global.h first sql/sql_show.cc: Added comment sql/sql_signal.cc: Use my_global.h first sql/sql_statistics.cc: Use my_global.h first sql/sql_table.cc: Use my_global.h first sql/sql_tablespace.cc: Use my_global.h first sql/sql_test.cc: Use my_global.h first sql/sql_time.cc: Use my_global.h first sql/sql_trigger.cc: Use my_global.h first sql/sql_udf.cc: Use my_global.h first sql/sql_union.cc: Use my_global.h first sql/sql_update.cc: Use my_global.h first sql/sql_view.cc: Use my_global.h first sql/sys_vars.cc: Added comment sql/table.cc: Use my_global.h first sql/thr_malloc.cc: Use my_global.h first sql/transaction.cc: Use my_global.h first sql/uniques.cc: Use my_global.h first sql/unireg.cc: Use my_global.h first sql/unireg.h: Removed inclusion of my_global.h storage/archive/ha_archive.cc: Added comment storage/blackhole/ha_blackhole.cc: Use my_global.h first storage/csv/ha_tina.cc: Use my_global.h first storage/csv/transparent_file.cc: Use my_global.h first storage/federated/ha_federated.cc: Use my_global.h first storage/federatedx/federatedx_io.cc: Use my_global.h first storage/federatedx/federatedx_io_mysql.cc: Use my_global.h first storage/federatedx/federatedx_io_null.cc: Use my_global.h first storage/federatedx/federatedx_txn.cc: Use my_global.h first storage/heap/ha_heap.cc: Use my_global.h first storage/innobase/handler/handler0alter.cc: Use my_global.h first storage/maria/ha_maria.cc: Use my_global.h first storage/maria/unittest/ma_maria_log_cleanup.c: Remove duplicated include files storage/maria/unittest/test_file.c: Added comment storage/myisam/ha_myisam.cc: Move sql_plugin.h first as this includes my_global.h storage/myisammrg/ha_myisammrg.cc: Use my_global.h first storage/oqgraph/oqgraph_thunk.cc: Use my_config.h and my_global.h first One could not include my_global.h before oqgraph_thunk.h (don't know why) storage/spider/ha_spider.cc: Use my_global.h first storage/spider/hs_client/config.cpp: Use my_global.h first storage/spider/hs_client/escape.cpp: Use my_global.h first storage/spider/hs_client/fatal.cpp: Use my_global.h first storage/spider/hs_client/hstcpcli.cpp: Use my_global.h first storage/spider/hs_client/socket.cpp: Use my_global.h first storage/spider/hs_client/string_util.cpp: Use my_global.h first storage/spider/spd_conn.cc: Use my_global.h first storage/spider/spd_copy_tables.cc: Use my_global.h first storage/spider/spd_db_conn.cc: Use my_global.h first storage/spider/spd_db_handlersocket.cc: Use my_global.h first storage/spider/spd_db_mysql.cc: Use my_global.h first storage/spider/spd_db_oracle.cc: Use my_global.h first storage/spider/spd_direct_sql.cc: Use my_global.h first storage/spider/spd_i_s.cc: Use my_global.h first storage/spider/spd_malloc.cc: Use my_global.h first storage/spider/spd_param.cc: Use my_global.h first storage/spider/spd_ping_table.cc: Use my_global.h first storage/spider/spd_sys_table.cc: Use my_global.h first storage/spider/spd_table.cc: Use my_global.h first storage/spider/spd_trx.cc: Use my_global.h first storage/xtradb/handler/handler0alter.cc: Use my_global.h first storage/xtradb/handler/i_s.cc: Use my_global.h first
2014-09-30 19:31:14 +02:00
#include <my_global.h>
#include "sql_priv.h"
#include "unireg.h"
#include "sql_base.h" // close_thread_tables
#include "event_db_repository.h"
#include "key.h" // key_copy
#include "sql_db.h" // get_default_db_collation
#include "sql_time.h" // interval_type_to_name
#include "tztime.h" // struct Time_zone
#include "sql_acl.h" // SUPER_ACL, MYSQL_DB_FIELD_COUNT, mysql_db_table_fields
#include "records.h" // init_read_record, end_read_record
#include "sp_head.h"
#include "event_data_objects.h"
#include "events.h"
#include "sql_show.h"
#include "lock.h" // MYSQL_LOCK_IGNORE_TIMEOUT
/**
@addtogroup Event_Scheduler
@{
*/
static
const TABLE_FIELD_TYPE event_table_fields[ET_FIELD_COUNT] =
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
{
{
{ C_STRING_WITH_LEN("db") },
{ C_STRING_WITH_LEN("char(64)") },
{ C_STRING_WITH_LEN("utf8") }
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
},
{
{ C_STRING_WITH_LEN("name") },
{ C_STRING_WITH_LEN("char(64)") },
{ C_STRING_WITH_LEN("utf8") }
},
{
{ C_STRING_WITH_LEN("body") },
{ C_STRING_WITH_LEN("longblob") },
{NULL, 0}
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
},
{
{ C_STRING_WITH_LEN("definer") },
{ C_STRING_WITH_LEN("char(") },
{ C_STRING_WITH_LEN("utf8") }
},
{
{ C_STRING_WITH_LEN("execute_at") },
{ C_STRING_WITH_LEN("datetime") },
{NULL, 0}
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
},
{
{ C_STRING_WITH_LEN("interval_value") },
{ C_STRING_WITH_LEN("int(11)") },
{NULL, 0}
},
{
{ C_STRING_WITH_LEN("interval_field") },
{ C_STRING_WITH_LEN("enum('YEAR','QUARTER','MONTH','DAY',"
"'HOUR','MINUTE','WEEK','SECOND','MICROSECOND','YEAR_MONTH','DAY_HOUR',"
"'DAY_MINUTE','DAY_SECOND','HOUR_MINUTE','HOUR_SECOND','MINUTE_SECOND',"
"'DAY_MICROSECOND','HOUR_MICROSECOND','MINUTE_MICROSECOND',"
"'SECOND_MICROSECOND')") },
{NULL, 0}
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
},
{
{ C_STRING_WITH_LEN("created") },
{ C_STRING_WITH_LEN("timestamp") },
{NULL, 0}
},
{
{ C_STRING_WITH_LEN("modified") },
{ C_STRING_WITH_LEN("timestamp") },
{NULL, 0}
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
},
{
{ C_STRING_WITH_LEN("last_executed") },
{ C_STRING_WITH_LEN("datetime") },
{NULL, 0}
},
{
{ C_STRING_WITH_LEN("starts") },
{ C_STRING_WITH_LEN("datetime") },
{NULL, 0}
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
},
{
{ C_STRING_WITH_LEN("ends") },
{ C_STRING_WITH_LEN("datetime") },
{NULL, 0}
},
{
{ C_STRING_WITH_LEN("status") },
WL#3629 - Replication of Invocation and Invoked Features This changeset adds replication of events and user-defined functions. There are several bug reports involved in this change: BUG#16421, BUG#17857, BUG#20384: This patch modifies the mysql.events table to permit the addition of another enum value for the status column. The column now has values of ('DISABLED','SLAVESIDE_DISABLED','ENABLED'). A status of SLAVESIDE_DISABLED is set on the slave during replication of events. This enables users to determine which events werereplicated from the master and to later enable them if they promote the slave to a master. The CREATE, ALTER, and DROP statements are binlogged. A new test was added for replication of events (rpl_events). BUG#17671: This patch modifies the code to permit logging of user-defined functions. Note: this is the CREATE FUNCTION ... SONAME variety. A more friendly error message to be displayed should a replicated user-defined function not be found in the loadable library or if the library is missing from the slave.The CREATE andDROP statements are binlogged. A new test was added for replication of user-defined functions (rpl_udf). The patch also adds a new column to the mysql.event table named 'originator' that is used to store the server_id of the server that the event originated on. This enables users to promote a slave to a master and later return the promoted slave to a slave and disable the replicated events. mysql-test/lib/init_db.sql: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the SLAVESIDE_DISABLED to the list of enumerated values for the mysql.event table. This patch adds the column 'originator' to the mysql.event table. mysql-test/r/events.result: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the 'originator' column to the events test results. This was necessary to ensure the manual insert into mysql.event table succeeds because the originator column is set to NOT NULL. mysql-test/r/events_grant.result: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the 'originator' column to the events_grant test results. This was necessary to ensure the manual insert into mysql.event table succeeds because the originator column is set to NOT NULL. mysql-test/r/events_restart_phase1.result: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the 'originator' column to the events_restart_phase1 test results. This was necessary to ensure the manual insert into mysql.event table succeeds because the originator column is set to NOT NULL. mysql-test/r/system_mysql_db.result: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the SLAVESIDE_DISABLED to the list of enumerated values for the mysql.event table. This patch adds the column 'originator' to the mysql.event table. These changes to the result file were necessary to ensure correct test results. mysql-test/t/events.test: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the 'originator' column to the events test. This was necessary to ensure the manual insert into mysql.event table succeeds because the originator column is set to NOT NULL. mysql-test/t/events_restart_phase1.test: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the 'originator' column to the events_restart_phase1 test. This was necessary to ensure the manual insert into mysql.event table succeeds because the originator column is set to NOT NULL. scripts/mysql_create_system_tables.sh: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the SLAVESIDE_DISABLED to the list of enumerated values for the mysql.event table. This patch adds the column 'originator' to the mysql.event table. scripts/mysql_fix_privilege_tables.sql: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the SLAVESIDE_DISABLED to the list of enumerated values for the mysql.event table. This patch adds the column 'originator' to the mysql.event table. sql/event_data_objects.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit processing of the new enum SLAVESIDE_DISABLED which is set on the slave during replication of events. This patch uses the new Event_basic:: enumerated values. sql/event_data_objects.h: WL#3629 - Replication of Invocation and Invoked Features This patch moves the duplicated enumeration values for ENABLED, SLAVESIDE_DISABLED, and DISABLED to the Event_basic class removing them from the other Event_* classes. sql/event_db_repository.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit processing of the new enum SLAVESIDE_DISABLED which is set on the slave during replication of events. The patch also adds a new column to the mysql.event table named 'originator' that is used to store the server_id of the server that the event originated on. This enables users to promote a slave to a master and later return the promoted slave to a slave and disable the replicated events. sql/event_db_repository.h: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to add a new field named 'originator' to the enum_event_table_field and associated structure. sql/event_queue.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit processing of the new enum SLAVESIDE_DISABLED which is set on the slave during replication of events. sql/events.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit processing of the new enum SLAVESIDE_DISABLED which is set on the slave during replication of events. sql/lex.h: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to add the new SLAVESIDE_DISABLE symbol to the lexical parser. sql/slave.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit the capture of the error on the slave when a UDF from a loadable library is not loaded on the server when replicated from the master. sql/sql_parse.cc: WL#3629 - Replication of Invocation and Invoked Features This patch removes the comment because drop functions commands are replicated. sql/sql_show.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit processing of the new enum SLAVESIDE_DISABLED which is set on the slave during replication of events. The code also adds changes the display width of the status column for the schema table for the show events command and also adds the new column 'originator' to the events_field_info structure. sql/sql_udf.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to add the binlogging of the create and drop function events. sql/sql_yacc.yy: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to change the enumeration of the status column for the events in the parser. The code uses the Event_basic:: enumerations allowing the enums to be defined in one place. mysql-test/t/rpl_events.test: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new test for testing replication of events. The test uses include files so that the test can test under both RBR and SBR. mysql-test/r/rpl_events.result: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new result file for testing replication of events. mysql-test/r/rpl_udf.result: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new result file for testing replication of UDFs. mysql-test/t/rpl_udf.test: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new test for testing replication of UDFs. The test uses include files so that the test can test under both RBR and SBR. mysql-test/include/rpl_events.inc: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new include file for testing replication of events. This file contains the core test procedures. mysql-test/include/rpl_udf.inc: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new include file for testing replication of UDFs. This file contains the core test procedures.
2007-03-16 14:56:57 +01:00
{ C_STRING_WITH_LEN("enum('ENABLED','DISABLED','SLAVESIDE_DISABLED')") },
{NULL, 0}
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
},
{
{ C_STRING_WITH_LEN("on_completion") },
{ C_STRING_WITH_LEN("enum('DROP','PRESERVE')") },
{NULL, 0}
},
{
{ C_STRING_WITH_LEN("sql_mode") },
{ C_STRING_WITH_LEN("set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES',"
MWL#43 CREATE TABLE options (by Sanja) Docs/sp-imp-spec.txt: New sql_mode added. include/my_base.h: Flag in frm of create options. libmysqld/CMakeLists.txt: New files added. libmysqld/Makefile.am: New files added. mysql-test/r/events_bugs.result: New sql_mode added. mysql-test/r/information_schema.result: New sql_mode added. mysql-test/r/sp.result: New sql_mode added. mysql-test/r/system_mysql_db.result: New sql_mode added. mysql-test/suite/funcs_1/r/is_columns_mysql.result: New sql_mode added. mysql-test/suite/funcs_1/r/is_columns_mysql_embedded.result: New sql_mode added. mysql-test/t/events_bugs.test: New sql_mode added. mysql-test/t/sp.test: New sql_mode added. scripts/mysql_system_tables.sql: New sql_mode added. scripts/mysql_system_tables_fix.sql: New sql_mode added. sql/CMakeLists.txt: New files added. sql/Makefile.am: New files added. sql/event_db_repository.cc: New sql_mode added. sql/field.cc: Create options support added. sql/field.h: Create options support added. sql/ha_partition.cc: Create options support added. sql/handler.cc: Create options support added. sql/handler.h: Create options support added. sql/log_event.h: New sql_mode added. sql/mysql_priv.h: New sql_mode added. sql/mysqld.cc: New sql_mode added. sql/share/errmsg.txt: New error messages added. sql/sp.cc: New sql_mode added. sql/sp_head.cc: Create options support added. sql/sql_class.cc: Create options support added. Debug added. sql/sql_class.h: Create options support added. sql/sql_insert.cc: my_safe_a* moved to mysqld_priv.h sql/sql_lex.h: Create options support added. sql/sql_parse.cc: Create options support added. sql/sql_show.cc: Create options support added. sql/sql_table.cc: Create options support added. sql/sql_view.cc: New sql_mode added. sql/sql_yacc.yy: Create options support added. sql/structs.h: Create options support added. sql/table.cc: Create options support added. sql/table.h: Create options support added. sql/unireg.cc: Create options support added. storage/example/ha_example.cc: Create options example. storage/example/ha_example.h: Create options example. storage/pbxt/src/discover_xt.cc: Create options support added.
2010-04-08 14:10:05 +02:00
"'IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY',"
"'NO_UNSIGNED_SUBTRACTION',"
"'NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB',"
"'NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40',"
"'ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES',"
"'STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES',"
"'ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER',"
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
"'HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH')") },
{NULL, 0}
},
{
{ C_STRING_WITH_LEN("comment") },
{ C_STRING_WITH_LEN("char(64)") },
{ C_STRING_WITH_LEN("utf8") }
BUG#16420: Events: timestamps become UTC BUG#26429: SHOW CREATE EVENT is incorrect for an event that STARTS NOW() BUG#26431: Impossible to re-create an event from backup if its STARTS clause is in the past WL#3698: Events: execution in local time zone The problem was that local times specified by the user in AT, STARTS and ENDS of CREATE EVENT/ALTER EVENT statement were converted to UTC, and the original time zone was forgotten. This way, event scheduler couldn't honor Daylight Saving Time shifts, and times shown to the user were also in UTC. Additionally, CREATE EVENT didn't allow times in the past, thus preventing straightforward event restoration from old backups. This patch reworks event scheduler time computations, performing them in the time zone associated with the event. Also it allows times to be in the past. The patch adds time_zone column to mysql.event table. NOTE: The patch is almost final, but the bug#9953 should be pushed first. client/mysqldump.c: Before every CREATE EVENT, output its time zone. mysql-test/include/wait_condition.inc: Add optional $wait_timeout parameter. mysql-test/lib/init_db.sql: Add time_zone column. mysql-test/r/events.result: Update result. mysql-test/r/events_bugs.result: Update result. mysql-test/r/events_grant.result: Update result. mysql-test/r/events_restart_phase1.result: Update result. mysql-test/r/events_scheduling.result: Update result. mysql-test/r/mysqldump.result: Update result. mysql-test/r/ps.result: Update result. mysql-test/r/system_mysql_db.result: Update result. mysql-test/t/events.test: Remove STARTS from the result, as it depends on current time. mysql-test/t/events_bugs.test: Time in the past is no longer an error. mysql-test/t/events_restart_phase1.test: Fill new column 'time_zone' in mysql.event. mysql-test/t/events_scheduling.test: Cleanup: disable event scheduler. scripts/mysql_create_system_tables.sh: Add new column 'time_zone' to mysql.event. scripts/mysql_fix_privilege_tables.sql: Add new column 'time_zone' to mysql.event. sql/event_data_objects.cc: The essence of the change is the following: - for internal times use my_time_t instead of TIME. Assignment and comparison is done now on plain numbers. - in init_execute_at(), init_starts(), init_ends() convert given time to number of seconds since Epoch (aka Unix time, in UTC). - handle time_zone field loading and storing. - in get_next_time(), Unix time is converted back to event time zone, interval is added, and the result is converted to UTC again. - fix Event_timed::get_create_event() to report STARTS and ENDS. - before executing the event body we set thread time zone to the event time zone. sql/event_data_objects.h: Add time_zone member to Event_basic class. Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_db_repository.cc: Add time_zone column handling. Give a warning and do not create an event if its execution time is in the past, and ON COMPLETION NOT PRESERVE is set, because such an event should be dropped by that time. Also, do not allow ALTER EVENT to set execution time in the past when ON COMPLETION NOT PRESERVE is set. sql/event_db_repository.h: Add enum member for new time zone column. sql/event_queue.cc: Replace handling of broken down times with simple handling of my_time_t. sql/event_queue.h: Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_scheduler.cc: Add TODO comment. sql/events.cc: Send time_zone column for SHOW CREATE EVENT. sql/share/errmsg.txt: Update error message, and add two more errors. sql/sql_show.cc: Add TIME_ZONE column to the output of SHOW EVENTS. mysql-test/r/events_time_zone.result: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/r/events_time_zone.result mysql-test/t/events_time_zone.test: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/t/events_time_zone.test
2007-03-16 15:31:07 +01:00
},
WL#3629 - Replication of Invocation and Invoked Features This changeset adds replication of events and user-defined functions. There are several bug reports involved in this change: BUG#16421, BUG#17857, BUG#20384: This patch modifies the mysql.events table to permit the addition of another enum value for the status column. The column now has values of ('DISABLED','SLAVESIDE_DISABLED','ENABLED'). A status of SLAVESIDE_DISABLED is set on the slave during replication of events. This enables users to determine which events werereplicated from the master and to later enable them if they promote the slave to a master. The CREATE, ALTER, and DROP statements are binlogged. A new test was added for replication of events (rpl_events). BUG#17671: This patch modifies the code to permit logging of user-defined functions. Note: this is the CREATE FUNCTION ... SONAME variety. A more friendly error message to be displayed should a replicated user-defined function not be found in the loadable library or if the library is missing from the slave.The CREATE andDROP statements are binlogged. A new test was added for replication of user-defined functions (rpl_udf). The patch also adds a new column to the mysql.event table named 'originator' that is used to store the server_id of the server that the event originated on. This enables users to promote a slave to a master and later return the promoted slave to a slave and disable the replicated events. mysql-test/lib/init_db.sql: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the SLAVESIDE_DISABLED to the list of enumerated values for the mysql.event table. This patch adds the column 'originator' to the mysql.event table. mysql-test/r/events.result: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the 'originator' column to the events test results. This was necessary to ensure the manual insert into mysql.event table succeeds because the originator column is set to NOT NULL. mysql-test/r/events_grant.result: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the 'originator' column to the events_grant test results. This was necessary to ensure the manual insert into mysql.event table succeeds because the originator column is set to NOT NULL. mysql-test/r/events_restart_phase1.result: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the 'originator' column to the events_restart_phase1 test results. This was necessary to ensure the manual insert into mysql.event table succeeds because the originator column is set to NOT NULL. mysql-test/r/system_mysql_db.result: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the SLAVESIDE_DISABLED to the list of enumerated values for the mysql.event table. This patch adds the column 'originator' to the mysql.event table. These changes to the result file were necessary to ensure correct test results. mysql-test/t/events.test: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the 'originator' column to the events test. This was necessary to ensure the manual insert into mysql.event table succeeds because the originator column is set to NOT NULL. mysql-test/t/events_restart_phase1.test: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the 'originator' column to the events_restart_phase1 test. This was necessary to ensure the manual insert into mysql.event table succeeds because the originator column is set to NOT NULL. scripts/mysql_create_system_tables.sh: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the SLAVESIDE_DISABLED to the list of enumerated values for the mysql.event table. This patch adds the column 'originator' to the mysql.event table. scripts/mysql_fix_privilege_tables.sql: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the SLAVESIDE_DISABLED to the list of enumerated values for the mysql.event table. This patch adds the column 'originator' to the mysql.event table. sql/event_data_objects.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit processing of the new enum SLAVESIDE_DISABLED which is set on the slave during replication of events. This patch uses the new Event_basic:: enumerated values. sql/event_data_objects.h: WL#3629 - Replication of Invocation and Invoked Features This patch moves the duplicated enumeration values for ENABLED, SLAVESIDE_DISABLED, and DISABLED to the Event_basic class removing them from the other Event_* classes. sql/event_db_repository.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit processing of the new enum SLAVESIDE_DISABLED which is set on the slave during replication of events. The patch also adds a new column to the mysql.event table named 'originator' that is used to store the server_id of the server that the event originated on. This enables users to promote a slave to a master and later return the promoted slave to a slave and disable the replicated events. sql/event_db_repository.h: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to add a new field named 'originator' to the enum_event_table_field and associated structure. sql/event_queue.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit processing of the new enum SLAVESIDE_DISABLED which is set on the slave during replication of events. sql/events.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit processing of the new enum SLAVESIDE_DISABLED which is set on the slave during replication of events. sql/lex.h: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to add the new SLAVESIDE_DISABLE symbol to the lexical parser. sql/slave.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit the capture of the error on the slave when a UDF from a loadable library is not loaded on the server when replicated from the master. sql/sql_parse.cc: WL#3629 - Replication of Invocation and Invoked Features This patch removes the comment because drop functions commands are replicated. sql/sql_show.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit processing of the new enum SLAVESIDE_DISABLED which is set on the slave during replication of events. The code also adds changes the display width of the status column for the schema table for the show events command and also adds the new column 'originator' to the events_field_info structure. sql/sql_udf.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to add the binlogging of the create and drop function events. sql/sql_yacc.yy: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to change the enumeration of the status column for the events in the parser. The code uses the Event_basic:: enumerations allowing the enums to be defined in one place. mysql-test/t/rpl_events.test: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new test for testing replication of events. The test uses include files so that the test can test under both RBR and SBR. mysql-test/r/rpl_events.result: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new result file for testing replication of events. mysql-test/r/rpl_udf.result: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new result file for testing replication of UDFs. mysql-test/t/rpl_udf.test: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new test for testing replication of UDFs. The test uses include files so that the test can test under both RBR and SBR. mysql-test/include/rpl_events.inc: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new include file for testing replication of events. This file contains the core test procedures. mysql-test/include/rpl_udf.inc: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new include file for testing replication of UDFs. This file contains the core test procedures.
2007-03-16 14:56:57 +01:00
{
{ C_STRING_WITH_LEN("originator") },
{ C_STRING_WITH_LEN("int(10)") },
{NULL, 0}
Merge cbell@bk-internal.mysql.com:/home/bk/mysql-5.1-new-rpl into mysql_cab_desk.:C:/source/c++/mysql-5.1-new-rpl mysql-test/t/events.test: Auto merged sql/event_queue.cc: Auto merged sql/events.cc: Auto merged sql/lex.h: Auto merged sql/slave.cc: Auto merged sql/sql_parse.cc: Auto merged sql/sql_show.cc: Auto merged sql/sql_yacc.yy: Auto merged BitKeeper/deleted/.del-init_db.sql~a77d572c39d5a1f8: WL#3629 : Replication of Invocation and Invoked Features Manual merge prior to pushing patches. BitKeeper/deleted/.del-mysql_create_system_tables.sh: WL#3629 : Replication of Invocation and Invoked Features Manual merge prior to pushing patches. mysql-test/r/events.result: WL#3629 : Replication of Invocation and Invoked Features Manual merge prior to pushing patches. mysql-test/r/events_grant.result: WL#3629 : Replication of Invocation and Invoked Features Manual merge prior to pushing patches. mysql-test/r/events_restart_phase1.result: WL#3629 : Replication of Invocation and Invoked Features Manual merge prior to pushing patches. mysql-test/r/system_mysql_db.result: WL#3629 : Replication of Invocation and Invoked Features Manual merge prior to pushing patches. mysql-test/t/events_restart_phase1.test: WL#3629 : Replication of Invocation and Invoked Features Manual merge prior to pushing patches. scripts/mysql_system_tables.sql: WL#3629 : Replication of Invocation and Invoked Features Manual merge prior to pushing patches. scripts/mysql_system_tables_fix.sql: WL#3629 : Replication of Invocation and Invoked Features Manual merge prior to pushing patches. sql/event_data_objects.cc: WL#3629 : Replication of Invocation and Invoked Features Manual merge prior to pushing patches. sql/event_data_objects.h: WL#3629 : Replication of Invocation and Invoked Features Manual merge prior to pushing patches. sql/event_db_repository.cc: WL#3629 : Replication of Invocation and Invoked Features Manual merge prior to pushing patches. sql/event_db_repository.h: WL#3629 : Replication of Invocation and Invoked Features Manual merge prior to pushing patches. sql/sql_udf.cc: WL#3629 : Replication of Invocation and Invoked Features Manual merge prior to pushing patches.
2007-03-29 15:54:59 +02:00
},
BUG#16420: Events: timestamps become UTC BUG#26429: SHOW CREATE EVENT is incorrect for an event that STARTS NOW() BUG#26431: Impossible to re-create an event from backup if its STARTS clause is in the past WL#3698: Events: execution in local time zone The problem was that local times specified by the user in AT, STARTS and ENDS of CREATE EVENT/ALTER EVENT statement were converted to UTC, and the original time zone was forgotten. This way, event scheduler couldn't honor Daylight Saving Time shifts, and times shown to the user were also in UTC. Additionally, CREATE EVENT didn't allow times in the past, thus preventing straightforward event restoration from old backups. This patch reworks event scheduler time computations, performing them in the time zone associated with the event. Also it allows times to be in the past. The patch adds time_zone column to mysql.event table. NOTE: The patch is almost final, but the bug#9953 should be pushed first. client/mysqldump.c: Before every CREATE EVENT, output its time zone. mysql-test/include/wait_condition.inc: Add optional $wait_timeout parameter. mysql-test/lib/init_db.sql: Add time_zone column. mysql-test/r/events.result: Update result. mysql-test/r/events_bugs.result: Update result. mysql-test/r/events_grant.result: Update result. mysql-test/r/events_restart_phase1.result: Update result. mysql-test/r/events_scheduling.result: Update result. mysql-test/r/mysqldump.result: Update result. mysql-test/r/ps.result: Update result. mysql-test/r/system_mysql_db.result: Update result. mysql-test/t/events.test: Remove STARTS from the result, as it depends on current time. mysql-test/t/events_bugs.test: Time in the past is no longer an error. mysql-test/t/events_restart_phase1.test: Fill new column 'time_zone' in mysql.event. mysql-test/t/events_scheduling.test: Cleanup: disable event scheduler. scripts/mysql_create_system_tables.sh: Add new column 'time_zone' to mysql.event. scripts/mysql_fix_privilege_tables.sql: Add new column 'time_zone' to mysql.event. sql/event_data_objects.cc: The essence of the change is the following: - for internal times use my_time_t instead of TIME. Assignment and comparison is done now on plain numbers. - in init_execute_at(), init_starts(), init_ends() convert given time to number of seconds since Epoch (aka Unix time, in UTC). - handle time_zone field loading and storing. - in get_next_time(), Unix time is converted back to event time zone, interval is added, and the result is converted to UTC again. - fix Event_timed::get_create_event() to report STARTS and ENDS. - before executing the event body we set thread time zone to the event time zone. sql/event_data_objects.h: Add time_zone member to Event_basic class. Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_db_repository.cc: Add time_zone column handling. Give a warning and do not create an event if its execution time is in the past, and ON COMPLETION NOT PRESERVE is set, because such an event should be dropped by that time. Also, do not allow ALTER EVENT to set execution time in the past when ON COMPLETION NOT PRESERVE is set. sql/event_db_repository.h: Add enum member for new time zone column. sql/event_queue.cc: Replace handling of broken down times with simple handling of my_time_t. sql/event_queue.h: Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_scheduler.cc: Add TODO comment. sql/events.cc: Send time_zone column for SHOW CREATE EVENT. sql/share/errmsg.txt: Update error message, and add two more errors. sql/sql_show.cc: Add TIME_ZONE column to the output of SHOW EVENTS. mysql-test/r/events_time_zone.result: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/r/events_time_zone.result mysql-test/t/events_time_zone.test: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/t/events_time_zone.test
2007-03-16 15:31:07 +01:00
{
{ C_STRING_WITH_LEN("time_zone") },
{ C_STRING_WITH_LEN("char(64)") },
{ C_STRING_WITH_LEN("latin1") }
Patch for the following bugs: - BUG#11986: Stored routines and triggers can fail if the code has a non-ascii symbol - BUG#16291: mysqldump corrupts string-constants with non-ascii-chars - BUG#19443: INFORMATION_SCHEMA does not support charsets properly - BUG#21249: Character set of SP-var can be ignored - BUG#25212: Character set of string constant is ignored (stored routines) - BUG#25221: Character set of string constant is ignored (triggers) There were a few general problems that caused these bugs: 1. Character set information of the original (definition) query for views, triggers, stored routines and events was lost. 2. mysqldump output query in client character set, which can be inappropriate to encode definition-query. 3. INFORMATION_SCHEMA used strings with mixed encodings to display object definition; 1. No query-definition-character set. In order to compile query into execution code, some extra data (such as environment variables or the database character set) is used. The problem here was that this context was not preserved. So, on the next load it can differ from the original one, thus the result will be different. The context contains the following data: - client character set; - connection collation (character set and collation); - collation of the owner database; The fix is to store this context and use it each time we parse (compile) and execute the object (stored routine, trigger, ...). 2. Wrong mysqldump-output. The original query can contain several encodings (by means of character set introducers). The problem here was that we tried to convert original query to the mysqldump-client character set. Moreover, we stored queries in different character sets for different objects (views, for one, used UTF8, triggers used original character set). The solution is - to store definition queries in the original character set; - to change SHOW CREATE statement to output definition query in the binary character set (i.e. without any conversion); - introduce SHOW CREATE TRIGGER statement; - to dump special statements to switch the context to the original one before dumping and restore it afterwards. Note, in order to preserve the database collation at the creation time, additional ALTER DATABASE might be used (to temporary switch the database collation back to the original value). In this case, ALTER DATABASE privilege will be required. This is a backward-incompatible change. 3. INFORMATION_SCHEMA showed non-UTF8 strings The fix is to generate UTF8-query during the parsing, store it in the object and show it in the INFORMATION_SCHEMA. Basically, the idea is to create a copy of the original query convert it to UTF8. Character set introducers are removed and all text literals are converted to UTF8. This UTF8 query is intended to provide user-readable output. It must not be used to recreate the object. Specialized SHOW CREATE statements should be used for this. The reason for this limitation is the following: the original query can contain symbols from several character sets (by means of character set introducers). Example: - original query: CREATE VIEW v1 AS SELECT _cp1251 'Hello' AS c1; - UTF8 query (for INFORMATION_SCHEMA): CREATE VIEW v1 AS SELECT 'Hello' AS c1; client/mysqldump.c: Set original character set and collation before dumping definition query. include/my_sys.h: Move out-parameter to the end of list. mysql-test/lib/mtr_report.pl: Ignore server-warnings during the test case. mysql-test/r/create.result: Update result file. mysql-test/r/ctype_cp932_binlog_stm.result: Update result file. mysql-test/r/events.result: Update result file. mysql-test/r/events_bugs.result: Update result file. mysql-test/r/events_grant.result: Update result file. mysql-test/r/func_in.result: Update result file. mysql-test/r/gis.result: Update result file. mysql-test/r/grant.result: Update result file. mysql-test/r/information_schema.result: Update result file. mysql-test/r/information_schema_db.result: Update result file. mysql-test/r/lowercase_view.result: Update result file. mysql-test/r/mysqldump.result: Update result file. mysql-test/r/ndb_sp.result: Update result file. mysql-test/r/ps.result: Update result file. mysql-test/r/rpl_replicate_do.result: Update result file. mysql-test/r/rpl_sp.result: Update result file. mysql-test/r/rpl_trigger.result: Update result file. mysql-test/r/rpl_view.result: Update result file. mysql-test/r/show_check.result: Update result file. mysql-test/r/skip_grants.result: Update result file. mysql-test/r/sp-destruct.result: Update result file. mysql-test/r/sp-error.result: Update result file. mysql-test/r/sp-security.result: Update result file. mysql-test/r/sp.result: Update result file. mysql-test/r/sql_mode.result: Update result file. mysql-test/r/system_mysql_db.result: Update result file. mysql-test/r/temp_table.result: Update result file. mysql-test/r/trigger-compat.result: Update result file. mysql-test/r/trigger-grant.result: Update result file. mysql-test/r/trigger.result: Update result file. mysql-test/r/view.result: Update result file. mysql-test/r/view_grant.result: Update result file. mysql-test/t/events.test: Update test case (new columns added). mysql-test/t/information_schema.test: Update test case (new columns added). mysql-test/t/show_check.test: Test case for SHOW CREATE TRIGGER in prepared statements and stored routines. mysql-test/t/sp-destruct.test: Update test case (new columns added). mysql-test/t/sp.test: Update test case (new columns added). mysql-test/t/view.test: Update test. mysys/charset.c: Move out-parameter to the end of list. scripts/mysql_system_tables.sql: Add new columns to mysql.proc and mysql.event. scripts/mysql_system_tables_fix.sql: Add new columns to mysql.proc and mysql.event. sql/event_data_objects.cc: Support new attributes for events. sql/event_data_objects.h: Support new attributes for events. sql/event_db_repository.cc: Support new attributes for events. sql/event_db_repository.h: Support new attributes for events. sql/events.cc: Add new columns to SHOW CREATE event resultset. sql/mysql_priv.h: 1. Introduce Object_creation_ctx; 2. Introduce SHOW CREATE TRIGGER; 3. Introduce auxilary functions. sql/sp.cc: Add support for new store routines attributes. sql/sp_head.cc: Add support for new store routines attributes. sql/sp_head.h: Add support for new store routines attributes. sql/sql_lex.cc: Generate UTF8-body on parsing/lexing. sql/sql_lex.h: 1. Generate UTF8-body on parsing/lexing. 2. Introduce SHOW CREATE TRIGGER. sql/sql_parse.cc: Introduce SHOW CREATE TRIGGER. sql/sql_partition.cc: Update parse_sql(). sql/sql_prepare.cc: Update parse_sql(). sql/sql_show.cc: Support new attributes for views sql/sql_trigger.cc: Support new attributes for views sql/sql_trigger.h: Support new attributes for views sql/sql_view.cc: Support new attributes for views sql/sql_yacc.yy: 1. Add SHOW CREATE TRIGGER statement. 2. Generate UTF8-body for views, stored routines, triggers and events. sql/table.cc: Introduce Object_creation_ctx. sql/table.h: Introduce Object_creation_ctx. sql/share/errmsg.txt: Add new errors. mysql-test/include/ddl_i18n.check_events.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_sp.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_triggers.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_views.inc: Aux file for test suite. mysql-test/include/have_cp1251.inc: Aux file for test suite. mysql-test/include/have_cp866.inc: Aux file for test suite. mysql-test/include/have_koi8r.inc: Aux file for test suite. mysql-test/include/have_utf8.inc: Aux file for test suite. mysql-test/r/ddl_i18n_koi8r.result: Result file. mysql-test/r/ddl_i18n_utf8.result: Result file. mysql-test/r/have_cp1251.require: Aux file for test suite. mysql-test/r/have_cp866.require: Aux file for test suite. mysql-test/r/have_koi8r.require: Aux file for test suite. mysql-test/r/have_utf8.require: Aux file for test suite. mysql-test/t/ddl_i18n_koi8r.test: Complete koi8r test case for the CS patch. mysql-test/t/ddl_i18n_utf8.test: Complete utf8 test case for the CS patch.
2007-06-28 19:34:54 +02:00
},
{
{ C_STRING_WITH_LEN("character_set_client") },
{ C_STRING_WITH_LEN("char(32)") },
{ C_STRING_WITH_LEN("utf8") }
},
{
{ C_STRING_WITH_LEN("collation_connection") },
{ C_STRING_WITH_LEN("char(32)") },
{ C_STRING_WITH_LEN("utf8") }
},
{
{ C_STRING_WITH_LEN("db_collation") },
{ C_STRING_WITH_LEN("char(32)") },
{ C_STRING_WITH_LEN("utf8") }
},
{
{ C_STRING_WITH_LEN("body_utf8") },
{ C_STRING_WITH_LEN("longblob") },
{ NULL, 0 }
}
};
static const TABLE_FIELD_DEF
event_table_def= {ET_FIELD_COUNT, event_table_fields, 0, (uint*) 0};
class Event_db_intact : public Table_check_intact
{
protected:
void report_error(uint, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
error_log_print(ERROR_LEVEL, fmt, args);
va_end(args);
}
};
/** In case of an error, a message is printed to the error log. */
static Event_db_intact table_intact;
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
/**
Puts some data common to CREATE and ALTER EVENT into a row.
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
Used both when an event is created and when it is altered.
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
@param thd THD
@param table The row to fill out
@param et Event's data
Patch for the following bugs: - BUG#11986: Stored routines and triggers can fail if the code has a non-ascii symbol - BUG#16291: mysqldump corrupts string-constants with non-ascii-chars - BUG#19443: INFORMATION_SCHEMA does not support charsets properly - BUG#21249: Character set of SP-var can be ignored - BUG#25212: Character set of string constant is ignored (stored routines) - BUG#25221: Character set of string constant is ignored (triggers) There were a few general problems that caused these bugs: 1. Character set information of the original (definition) query for views, triggers, stored routines and events was lost. 2. mysqldump output query in client character set, which can be inappropriate to encode definition-query. 3. INFORMATION_SCHEMA used strings with mixed encodings to display object definition; 1. No query-definition-character set. In order to compile query into execution code, some extra data (such as environment variables or the database character set) is used. The problem here was that this context was not preserved. So, on the next load it can differ from the original one, thus the result will be different. The context contains the following data: - client character set; - connection collation (character set and collation); - collation of the owner database; The fix is to store this context and use it each time we parse (compile) and execute the object (stored routine, trigger, ...). 2. Wrong mysqldump-output. The original query can contain several encodings (by means of character set introducers). The problem here was that we tried to convert original query to the mysqldump-client character set. Moreover, we stored queries in different character sets for different objects (views, for one, used UTF8, triggers used original character set). The solution is - to store definition queries in the original character set; - to change SHOW CREATE statement to output definition query in the binary character set (i.e. without any conversion); - introduce SHOW CREATE TRIGGER statement; - to dump special statements to switch the context to the original one before dumping and restore it afterwards. Note, in order to preserve the database collation at the creation time, additional ALTER DATABASE might be used (to temporary switch the database collation back to the original value). In this case, ALTER DATABASE privilege will be required. This is a backward-incompatible change. 3. INFORMATION_SCHEMA showed non-UTF8 strings The fix is to generate UTF8-query during the parsing, store it in the object and show it in the INFORMATION_SCHEMA. Basically, the idea is to create a copy of the original query convert it to UTF8. Character set introducers are removed and all text literals are converted to UTF8. This UTF8 query is intended to provide user-readable output. It must not be used to recreate the object. Specialized SHOW CREATE statements should be used for this. The reason for this limitation is the following: the original query can contain symbols from several character sets (by means of character set introducers). Example: - original query: CREATE VIEW v1 AS SELECT _cp1251 'Hello' AS c1; - UTF8 query (for INFORMATION_SCHEMA): CREATE VIEW v1 AS SELECT 'Hello' AS c1; client/mysqldump.c: Set original character set and collation before dumping definition query. include/my_sys.h: Move out-parameter to the end of list. mysql-test/lib/mtr_report.pl: Ignore server-warnings during the test case. mysql-test/r/create.result: Update result file. mysql-test/r/ctype_cp932_binlog_stm.result: Update result file. mysql-test/r/events.result: Update result file. mysql-test/r/events_bugs.result: Update result file. mysql-test/r/events_grant.result: Update result file. mysql-test/r/func_in.result: Update result file. mysql-test/r/gis.result: Update result file. mysql-test/r/grant.result: Update result file. mysql-test/r/information_schema.result: Update result file. mysql-test/r/information_schema_db.result: Update result file. mysql-test/r/lowercase_view.result: Update result file. mysql-test/r/mysqldump.result: Update result file. mysql-test/r/ndb_sp.result: Update result file. mysql-test/r/ps.result: Update result file. mysql-test/r/rpl_replicate_do.result: Update result file. mysql-test/r/rpl_sp.result: Update result file. mysql-test/r/rpl_trigger.result: Update result file. mysql-test/r/rpl_view.result: Update result file. mysql-test/r/show_check.result: Update result file. mysql-test/r/skip_grants.result: Update result file. mysql-test/r/sp-destruct.result: Update result file. mysql-test/r/sp-error.result: Update result file. mysql-test/r/sp-security.result: Update result file. mysql-test/r/sp.result: Update result file. mysql-test/r/sql_mode.result: Update result file. mysql-test/r/system_mysql_db.result: Update result file. mysql-test/r/temp_table.result: Update result file. mysql-test/r/trigger-compat.result: Update result file. mysql-test/r/trigger-grant.result: Update result file. mysql-test/r/trigger.result: Update result file. mysql-test/r/view.result: Update result file. mysql-test/r/view_grant.result: Update result file. mysql-test/t/events.test: Update test case (new columns added). mysql-test/t/information_schema.test: Update test case (new columns added). mysql-test/t/show_check.test: Test case for SHOW CREATE TRIGGER in prepared statements and stored routines. mysql-test/t/sp-destruct.test: Update test case (new columns added). mysql-test/t/sp.test: Update test case (new columns added). mysql-test/t/view.test: Update test. mysys/charset.c: Move out-parameter to the end of list. scripts/mysql_system_tables.sql: Add new columns to mysql.proc and mysql.event. scripts/mysql_system_tables_fix.sql: Add new columns to mysql.proc and mysql.event. sql/event_data_objects.cc: Support new attributes for events. sql/event_data_objects.h: Support new attributes for events. sql/event_db_repository.cc: Support new attributes for events. sql/event_db_repository.h: Support new attributes for events. sql/events.cc: Add new columns to SHOW CREATE event resultset. sql/mysql_priv.h: 1. Introduce Object_creation_ctx; 2. Introduce SHOW CREATE TRIGGER; 3. Introduce auxilary functions. sql/sp.cc: Add support for new store routines attributes. sql/sp_head.cc: Add support for new store routines attributes. sql/sp_head.h: Add support for new store routines attributes. sql/sql_lex.cc: Generate UTF8-body on parsing/lexing. sql/sql_lex.h: 1. Generate UTF8-body on parsing/lexing. 2. Introduce SHOW CREATE TRIGGER. sql/sql_parse.cc: Introduce SHOW CREATE TRIGGER. sql/sql_partition.cc: Update parse_sql(). sql/sql_prepare.cc: Update parse_sql(). sql/sql_show.cc: Support new attributes for views sql/sql_trigger.cc: Support new attributes for views sql/sql_trigger.h: Support new attributes for views sql/sql_view.cc: Support new attributes for views sql/sql_yacc.yy: 1. Add SHOW CREATE TRIGGER statement. 2. Generate UTF8-body for views, stored routines, triggers and events. sql/table.cc: Introduce Object_creation_ctx. sql/table.h: Introduce Object_creation_ctx. sql/share/errmsg.txt: Add new errors. mysql-test/include/ddl_i18n.check_events.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_sp.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_triggers.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_views.inc: Aux file for test suite. mysql-test/include/have_cp1251.inc: Aux file for test suite. mysql-test/include/have_cp866.inc: Aux file for test suite. mysql-test/include/have_koi8r.inc: Aux file for test suite. mysql-test/include/have_utf8.inc: Aux file for test suite. mysql-test/r/ddl_i18n_koi8r.result: Result file. mysql-test/r/ddl_i18n_utf8.result: Result file. mysql-test/r/have_cp1251.require: Aux file for test suite. mysql-test/r/have_cp866.require: Aux file for test suite. mysql-test/r/have_koi8r.require: Aux file for test suite. mysql-test/r/have_utf8.require: Aux file for test suite. mysql-test/t/ddl_i18n_koi8r.test: Complete koi8r test case for the CS patch. mysql-test/t/ddl_i18n_utf8.test: Complete utf8 test case for the CS patch.
2007-06-28 19:34:54 +02:00
@param sp Event stored routine
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
@param is_update CREATE EVENT or ALTER EVENT
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
@retval FALSE success
@retval TRUE error
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
*/
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
static bool
mysql_event_fill_row(THD *thd,
TABLE *table,
Event_parse_data *et,
sp_head *sp,
2011-11-02 12:55:46 +01:00
ulonglong sql_mode,
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
my_bool is_update)
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
{
CHARSET_INFO *scs= system_charset_info;
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
enum enum_events_table_field f_num;
Field **fields= table->field;
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
int rs= FALSE;
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
DBUG_ENTER("mysql_event_fill_row");
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
DBUG_PRINT("info", ("dbname=[%s]", et->dbname.str));
DBUG_PRINT("info", ("name =[%s]", et->name.str));
Bug#35981: ALTER EVENT causes the server to change the PRESERVE option. If [NOT] PRESERVE was not given, parser always defaulted to NOT PRESERVE, making it impossible for the "not given = no change" rule to work in ALTER EVENT. Leaving out the PRESERVE-clause defaults to NOT PRESERVE on CREATE now, and to "no change" in ALTER. mysql-test/r/events_2.result: show that giving no PRESERVE-clause to ALTER EVENT results in no change. show that giving no PRESERVE-clause to CREATE EVENT defaults to NOT PRESERVE as per the docs. Show specifically that this is also handled correctly when trying to ALTER EVENTs into the past. mysql-test/t/events_2.test: show that giving no PRESERVE-clause to ALTER EVENT results in no change. show that giving no PRESERVE-clause to CREATE EVENT defaults to NOT PRESERVE as per the docs. Show specifically that this is also handled correctly when trying to ALTER EVENTs into the past. sql/event_db_repository.cc: If ALTER EVENT was given no PRESERVE-clause (meaning "no change"), we don't know the previous PRESERVE-setting by the time we check the parse-data. If ALTER EVENT was given dates that are in the past, we don't know how to react, lacking the PRESERVE-setting. Heal this by running the check later when we have actually read the previous EVENT-data. sql/event_parse_data.cc: Change default for ON COMPLETION to indicate, "not specified." Also defer throwing errors when ALTER EVENT is given dates in the past but not PRESERVE-clause until we know the previous PRESERVE-value. sql/event_parse_data.h: Add third state for ON COMPLETION [NOT] PRESERVE (preserve, don't, not specified). Make check_dates() public so we can defer this check until deeper in the callstack where we have all the required data. sql/sql_yacc.yy: If CREATE EVENT is not given ON COMPLETION [NOT] PRESERVE, we default to NOT, as per the docs.
2008-08-18 13:05:51 +02:00
DBUG_ASSERT(et->on_completion != Event_parse_data::ON_COMPLETION_DEFAULT);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
if (table->s->fields < ET_FIELD_COUNT)
{
/*
Safety: this can only happen if someone started the server
and then altered mysql.event.
*/
fixes for test failures and small collateral changes mysql-test/lib/My/Test.pm: somehow with "print" we get truncated writes sometimes mysql-test/suite/perfschema/r/digest_table_full.result: md5 hashes of statement digests differ, because yacc token codes are different in mariadb mysql-test/suite/perfschema/r/dml_handler.result: host table is not ported over yet mysql-test/suite/perfschema/r/information_schema.result: host table is not ported over yet mysql-test/suite/perfschema/r/nesting.result: this differs, because we don't rewrite general log queries, and multi-statement packets are logged as a one entry. this result file is identical to what mysql-5.6.5 produces with the --log-raw option. mysql-test/suite/perfschema/r/relaylog.result: MariaDB modifies the binlog index file directly, while MySQL 5.6 has a feature "crash-safe binlog index" and modifies a special "crash-safe" shadow copy of the index file and then moves it over. That's why this test shows "NONE" index file writes in MySQL and "MANY" in MariaDB. mysql-test/suite/perfschema/r/server_init.result: MariaDB initializes the "manager" resources from the "manager" thread, and starts this thread only when --flush-time is not 0. MySQL 5.6 initializes "manager" resources unconditionally on server startup. mysql-test/suite/perfschema/r/stage_mdl_global.result: this differs, because MariaDB disables query cache when query_cache_size=0. MySQL does not do that, and this causes useless mutex locks and waits. mysql-test/suite/perfschema/r/statement_digest.result: md5 hashes of statement digests differ, because yacc token codes are different in mariadb mysql-test/suite/perfschema/r/statement_digest_consumers.result: md5 hashes of statement digests differ, because yacc token codes are different in mariadb mysql-test/suite/perfschema/r/statement_digest_long_query.result: md5 hashes of statement digests differ, because yacc token codes are different in mariadb mysql-test/suite/rpl/r/rpl_mixed_drop_create_temp_table.result: will be updated to match 5.6 when alfranio.correia@oracle.com-20110512172919-c1b5kmum4h52g0ni and anders.song@greatopensource.com-20110105052107-zoab0bsf5a6xxk2y are merged mysql-test/suite/rpl/r/rpl_non_direct_mixed_mixing_engines.result: will be updated to match 5.6 when anders.song@greatopensource.com-20110105052107-zoab0bsf5a6xxk2y is merged
2012-09-27 20:09:46 +02:00
my_error(ER_COL_COUNT_DOESNT_MATCH_CORRUPTED_V2, MYF(0),
table->s->db.str, table->alias.c_ptr(),
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
(int) ET_FIELD_COUNT, table->s->fields);
DBUG_RETURN(TRUE);
}
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
if (fields[f_num= ET_FIELD_DEFINER]->
store(et->definer.str, et->definer.length, scs))
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
goto err_truncate;
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
if (fields[f_num= ET_FIELD_DB]->store(et->dbname.str, et->dbname.length, scs))
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
goto err_truncate;
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
if (fields[f_num= ET_FIELD_NAME]->store(et->name.str, et->name.length, scs))
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
goto err_truncate;
/* ON_COMPLETION field is NOT NULL thus not calling set_notnull()*/
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
rs|= fields[ET_FIELD_ON_COMPLETION]->store((longlong)et->on_completion, TRUE);
/*
Set STATUS value unconditionally in case of CREATE EVENT.
For ALTER EVENT set it only if value of this field was changed.
Since STATUS field is NOT NULL call to set_notnull() is not needed.
*/
if (!is_update || et->status_changed)
rs|= fields[ET_FIELD_STATUS]->store((longlong)et->status, TRUE);
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
rs|= fields[ET_FIELD_ORIGINATOR]->store((longlong)et->originator, TRUE);
WL#3629 - Replication of Invocation and Invoked Features This changeset adds replication of events and user-defined functions. There are several bug reports involved in this change: BUG#16421, BUG#17857, BUG#20384: This patch modifies the mysql.events table to permit the addition of another enum value for the status column. The column now has values of ('DISABLED','SLAVESIDE_DISABLED','ENABLED'). A status of SLAVESIDE_DISABLED is set on the slave during replication of events. This enables users to determine which events werereplicated from the master and to later enable them if they promote the slave to a master. The CREATE, ALTER, and DROP statements are binlogged. A new test was added for replication of events (rpl_events). BUG#17671: This patch modifies the code to permit logging of user-defined functions. Note: this is the CREATE FUNCTION ... SONAME variety. A more friendly error message to be displayed should a replicated user-defined function not be found in the loadable library or if the library is missing from the slave.The CREATE andDROP statements are binlogged. A new test was added for replication of user-defined functions (rpl_udf). The patch also adds a new column to the mysql.event table named 'originator' that is used to store the server_id of the server that the event originated on. This enables users to promote a slave to a master and later return the promoted slave to a slave and disable the replicated events. mysql-test/lib/init_db.sql: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the SLAVESIDE_DISABLED to the list of enumerated values for the mysql.event table. This patch adds the column 'originator' to the mysql.event table. mysql-test/r/events.result: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the 'originator' column to the events test results. This was necessary to ensure the manual insert into mysql.event table succeeds because the originator column is set to NOT NULL. mysql-test/r/events_grant.result: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the 'originator' column to the events_grant test results. This was necessary to ensure the manual insert into mysql.event table succeeds because the originator column is set to NOT NULL. mysql-test/r/events_restart_phase1.result: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the 'originator' column to the events_restart_phase1 test results. This was necessary to ensure the manual insert into mysql.event table succeeds because the originator column is set to NOT NULL. mysql-test/r/system_mysql_db.result: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the SLAVESIDE_DISABLED to the list of enumerated values for the mysql.event table. This patch adds the column 'originator' to the mysql.event table. These changes to the result file were necessary to ensure correct test results. mysql-test/t/events.test: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the 'originator' column to the events test. This was necessary to ensure the manual insert into mysql.event table succeeds because the originator column is set to NOT NULL. mysql-test/t/events_restart_phase1.test: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the 'originator' column to the events_restart_phase1 test. This was necessary to ensure the manual insert into mysql.event table succeeds because the originator column is set to NOT NULL. scripts/mysql_create_system_tables.sh: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the SLAVESIDE_DISABLED to the list of enumerated values for the mysql.event table. This patch adds the column 'originator' to the mysql.event table. scripts/mysql_fix_privilege_tables.sql: WL#3629 - Replication of Invocation and Invoked Feature This patch adds the SLAVESIDE_DISABLED to the list of enumerated values for the mysql.event table. This patch adds the column 'originator' to the mysql.event table. sql/event_data_objects.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit processing of the new enum SLAVESIDE_DISABLED which is set on the slave during replication of events. This patch uses the new Event_basic:: enumerated values. sql/event_data_objects.h: WL#3629 - Replication of Invocation and Invoked Features This patch moves the duplicated enumeration values for ENABLED, SLAVESIDE_DISABLED, and DISABLED to the Event_basic class removing them from the other Event_* classes. sql/event_db_repository.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit processing of the new enum SLAVESIDE_DISABLED which is set on the slave during replication of events. The patch also adds a new column to the mysql.event table named 'originator' that is used to store the server_id of the server that the event originated on. This enables users to promote a slave to a master and later return the promoted slave to a slave and disable the replicated events. sql/event_db_repository.h: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to add a new field named 'originator' to the enum_event_table_field and associated structure. sql/event_queue.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit processing of the new enum SLAVESIDE_DISABLED which is set on the slave during replication of events. sql/events.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit processing of the new enum SLAVESIDE_DISABLED which is set on the slave during replication of events. sql/lex.h: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to add the new SLAVESIDE_DISABLE symbol to the lexical parser. sql/slave.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit the capture of the error on the slave when a UDF from a loadable library is not loaded on the server when replicated from the master. sql/sql_parse.cc: WL#3629 - Replication of Invocation and Invoked Features This patch removes the comment because drop functions commands are replicated. sql/sql_show.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to permit processing of the new enum SLAVESIDE_DISABLED which is set on the slave during replication of events. The code also adds changes the display width of the status column for the schema table for the show events command and also adds the new column 'originator' to the events_field_info structure. sql/sql_udf.cc: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to add the binlogging of the create and drop function events. sql/sql_yacc.yy: WL#3629 - Replication of Invocation and Invoked Features This patch modifies the code to change the enumeration of the status column for the events in the parser. The code uses the Event_basic:: enumerations allowing the enums to be defined in one place. mysql-test/t/rpl_events.test: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new test for testing replication of events. The test uses include files so that the test can test under both RBR and SBR. mysql-test/r/rpl_events.result: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new result file for testing replication of events. mysql-test/r/rpl_udf.result: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new result file for testing replication of UDFs. mysql-test/t/rpl_udf.test: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new test for testing replication of UDFs. The test uses include files so that the test can test under both RBR and SBR. mysql-test/include/rpl_events.inc: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new include file for testing replication of events. This file contains the core test procedures. mysql-test/include/rpl_udf.inc: WL#3629 - Replication of Invocation and Invoked Features This patch adds a new include file for testing replication of UDFs. This file contains the core test procedures.
2007-03-16 14:56:57 +01:00
wl#173 - temporal types with sub-second resolution and collateral changes. * introduce my_hrtime_t, my_timediff_t, and conversion macros * inroduce TIME_RESULT, but it can only be returned from Item::cmp_type(), never from Item::result_type() * pack_time/unpack_time function for "packed" representation of MYSQL_TIME in a longlong that can be compared * ADDTIME()/SUBTIME()/+- INTERVAL now work with TIME values * numbers aren't quoted in EXPLAIN EXTENDED * new column I_S.COLUMNS.DATETIME_PRECISION * date/time values are compares to anything as date/time, not as strings or numbers. * old timestamp(X) is no longer supported * MYSQL_TIME to string conversion functions take precision as an argument * unified the warnings from Field_timestamp/datetime/time/date/newdate store methods * Field_timestamp_hires, Field_datetime_hires, Field_time_hires * Field_temporal * Lazy_string class to pass a value (string, number, time) polymorphically down the stack * make_truncated_value_warning and Field::set_datetime_warning use Lazy_string as an argument, removed char*/int/double variants * removed Field::can_be_compared_as_longlong(). Use Field::cmp_type() == INT_RESULT instead * introduced Item::cmp_result() instead of Item::is_datetime() and Item::result_as_longlong() * in many cases date/time types are treated like other types, not as special cases * greatly simplified Arg_comparator (regarding date/time/year code) * SEC_TO_TIME is real function, not integer. * microsecond precision in NOW, CURTIME, etc * Item_temporal. All items derived from it only provide get_date, but no val* methods * replication of NOW(6) * Protocol::store(time) now takes the precision as an argument * @@TIMESTAMP is a double client/mysqlbinlog.cc: remove unneded casts include/my_sys.h: introduce my_hrtime_t, my_timediff_t, and conversion macros include/my_time.h: pack_time/unpack_time, etc. convenience functions to work with MYSQL_TIME::second_part libmysql/libmysql.c: str_to_time() is gone. str_to_datetime() does it now. my_TIME_to_str() takes the precision as an argument mysql-test/include/ps_conv.inc: time is not equal to datetime anymore mysql-test/r/distinct.result: a test for an old MySQL bug mysql-test/r/explain.result: numbers aren't quoted in EXPLAIN EXTENDED mysql-test/r/func_default.result: numbers aren't quoted in EXPLAIN EXTENDED mysql-test/r/func_sapdb.result: when decimals=NOT_FIXED_DEC it means "not fixed" indeed mysql-test/r/func_test.result: numbers aren't quoted in EXPLAIN EXTENDED mysql-test/r/func_time.result: ADDTIME()/SUBTIME()/+- INTERVAL now work with TIME values mysql-test/r/having.result: numbers aren't quoted in EXPLAIN EXTENDED mysql-test/r/information_schema.result: new column I_S.COLUMNS.DATETIME_PRECISION mysql-test/r/join_outer.result: numbers aren't quoted in EXPLAIN EXTENDED mysql-test/r/metadata.result: TIMESTAMP no longer has zerofill flag mysql-test/r/range.result: invalid datetime is not compared with as a string mysql-test/r/select.result: NO_ZERO_IN_DATE, etc only affect storage - according to the manual numbers aren't quoted in EXPLAIN EXTENDED mysql-test/r/subselect.result: numbers aren't quoted in EXPLAIN EXTENDED mysql-test/r/sysdate_is_now.result: when decimals=NOT_FIXED_DEC it means "not fixed" indeed mysql-test/r/type_blob.result: TIMESTAMP(N) is not deprecated mysql-test/r/type_timestamp.result: old TIMESTAMP(X) semantics is not supported anymore mysql-test/r/union.result: numbers aren't quoted in EXPLAIN EXTENDED mysql-test/r/varbinary.result: numbers aren't quoted in EXPLAIN EXTENDED mysql-test/t/distinct.test: test for an old MySQL bug mysql-test/t/func_time.test: +- INTERVAL now works with TIME values mysql-test/t/select.test: typo mysql-test/t/subselect.test: only one error per statement, please mysql-test/t/system_mysql_db_fix40123.test: old timestamp(X) is no longer supported mysql-test/t/system_mysql_db_fix50030.test: old timestamp(X) is no longer supported mysql-test/t/system_mysql_db_fix50117.test: old timestamp(X) is no longer supported mysql-test/t/type_blob.test: old timestamp(X) is no longer supported mysql-test/t/type_timestamp.test: old timestamp(X) is no longer supported mysys/my_getsystime.c: functions to get the time with microsecond precision mysys/my_init.c: move the my_getsystime.c initialization code to my_getsystime.c mysys/my_static.c: no need to make these variables extern mysys/my_static.h: no need to make these variables extern scripts/mysql_system_tables.sql: old timestamp(X) is no longer supported scripts/mysql_system_tables_fix.sql: old timestamp(X) is no longer supported scripts/mysqlhotcopy.sh: old timestamp(X) is no longer supported sql-common/my_time.c: * call str_to_time from str_to_datetime, as appropriate * date/time to string conversions take precision as an argument * number_to_time() * TIME_to_double() * pack_time() and unpack_time() sql/event_data_objects.cc: cast is not needed my_datetime_to_str() takes precision as an argument sql/event_db_repository.cc: avoid dangerous downcast (because the pointer is not always Field_timestamp, see events_1.test) sql/event_queue.cc: avoid silly double-work for cond_wait (having an endpoint of wait, subtract the current time to get the timeout, and use set_timespec() macro to fill in struct timespec, by adding the current time to the timeout) sql/field.cc: * remove virtual Field::get_time(), everyone should use only Field::get_date() * remove lots of #ifdef WORDS_BIGENDIAN * unified the warnings from Field_timestamp/datetime/time/date/newdate store methods * Field_timestamp_hires, Field_datetime_hires, Field_time_hires * Field_temporal * make_truncated_value_warning and Field::set_datetime_warning use Lazy_string as an argument, removed char*/int/double variants sql/field.h: * remove virtual Field::get_time(), everyone should use only Field::get_date() * remove lots of #ifdef WORDS_BIGENDIAN * unified the warnings from Field_timestamp/datetime/time/date/newdate store methods * Field_timestamp_hires, Field_datetime_hires, Field_time_hires * Field_temporal * make_truncated_value_warning and Field::set_datetime_warning use Lazy_string as an argument, removed char*/int/double variants * removed Field::can_be_compared_as_longlong(). Use Field::cmp_type() == INT_RESULT instead sql/filesort.cc: TIME_RESULT, cmp_time() sql/item.cc: * numbers aren't quoted in EXPLAIN EXTENDED * Item::cmp_result() instead of Item::is_datetime() and Item::result_as_longlong() * virtual Item::get_time() is gone * Item_param::field_type() is set correctly * Item_datetime, for a datetime constant * time to anything is compared as a time * Item_cache::print() prints the value is available * bug fixed in Item_cache_int::val_str() sql/item.h: * Item::print_value(), to be used from Item_xxx::print() when needed * Item::cmp_result() instead of Item::is_datetime() and Item::result_as_longlong() * virtual Item::get_time() is gone * Item_datetime, for a datetime constant * better default for cast_to_int_type() * Item_cache objects now *always* have the field_type() set sql/item_cmpfunc.cc: * get_year_value, get_time_value are gone. get_datetime_value does it all * get_value_a_func, get_value_b_func are gone * can_compare_as_dates() is gone too, TIME_RESULT is used instead * cmp_type() instead or result_type() when doing a comparison * compare_datetime and compate_e_datetime in the comparator_matrix, is_nulls_eq is gone * Item::cmp_result() instead of Item::is_datetime() and Item::result_as_longlong() sql/item_cmpfunc.h: greatly simplified Arg_comparator sql/item_create.cc: * fix a bug in error messages in CAST sql/item_func.cc: Item::cmp_result() instead of Item::is_datetime() and Item::result_as_longlong() mention all possibitiles in switch over Item_result values, or use default: sql/item_row.h: overwrite the default cmp_type() for Item_row, as no MYSQL_TYPE_xxx value corresponds to ROW_RESULT sql/item_timefunc.cc: rewrite make_datetime to support precision argument SEC_TO_TIME is real function, not integer. many functions that returned temporal values had duplicate code in val_* methods, some of them did not have get_date() which resulted in unnecessary date->str->date conversions. Now they all are derived from Item_temporal_func and *only* provide get_date, not val* methods. many fixes to set decimals (datetime precision) correctly. sql/item_timefunc.h: SEC_TO_TIME is real function, not integer. many functions that returned temporal values had duplicate code in val_* methods, some of them did not have get_date() which resulted in unnecessary date->str->date conversions. Now they all are derived from Item_temporal_func and *only* provide get_date, not val* methods. many fixes to set decimals (datetime precision) correctly. sql/log_event.cc: replication of NOW(6) sql/log_event.h: replication of NOW(6) sql/mysql_priv.h: Lazy_string class to pass a value (string, number, time) polymorphically down the stack. make_truncated_value_warning() that uses it. sql/mysqld.cc: datetime in Arg_comparator::comparator_matrix sql/opt_range.cc: cleanup: don't disable warnings before calling save_in_field_no_warnings() sql/protocol.cc: Protocol::store(time) now takes the precision as an argument sql/protocol.h: Protocol::store(time) now takes the precision as an argument sql/rpl_rli.cc: small cleanup sql/set_var.cc: SET TIMESTAMP=double sql/set_var.h: @@TIMESTAMP is a double sql/share/errmsg.txt: precision and scale are unsigned sql/slave.cc: replication of NOW(6) sql/sp_head.cc: cleanup sql/sql_class.cc: support for NOW(6) sql/sql_class.h: support for NOW(6) sql/sql_insert.cc: support for NOW(6) sql/sql_select.cc: use item->cmp_type(). move a comment where it belongs sql/sql_show.cc: new column I_S.COLUMNS.DATETIME_PRECISION sql/sql_yacc.yy: TIME(X), DATETIME(X), cast, NOW(X), CURTIME(X), etc sql/time.cc: fix date_add_interval() to support MYSQL_TIMESTAMP_TIME argument storage/myisam/ha_myisam.cc: TIMESTAMP no longer carries ZEROFIELD flag, still we keep MYI file compatible. strings/my_vsnprintf.c: warnings tests/mysql_client_test.c: old timestamp(X) does not work anymore datetime is no longer equal to time
2011-03-01 13:24:36 +01:00
if (!is_update)
rs|= fields[ET_FIELD_CREATED]->set_time();
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
/*
Change the SQL_MODE only if body was present in an ALTER EVENT and of course
always during CREATE EVENT.
*/
if (et->body_changed)
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
{
DBUG_ASSERT(sp->m_body.str);
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
rs|= fields[ET_FIELD_SQL_MODE]->store((longlong)sql_mode, TRUE);
if (fields[f_num= ET_FIELD_BODY]->store(sp->m_body.str,
sp->m_body.length,
scs))
{
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
goto err_truncate;
}
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
}
if (et->expression)
{
BUG#16420: Events: timestamps become UTC BUG#26429: SHOW CREATE EVENT is incorrect for an event that STARTS NOW() BUG#26431: Impossible to re-create an event from backup if its STARTS clause is in the past WL#3698: Events: execution in local time zone The problem was that local times specified by the user in AT, STARTS and ENDS of CREATE EVENT/ALTER EVENT statement were converted to UTC, and the original time zone was forgotten. This way, event scheduler couldn't honor Daylight Saving Time shifts, and times shown to the user were also in UTC. Additionally, CREATE EVENT didn't allow times in the past, thus preventing straightforward event restoration from old backups. This patch reworks event scheduler time computations, performing them in the time zone associated with the event. Also it allows times to be in the past. The patch adds time_zone column to mysql.event table. NOTE: The patch is almost final, but the bug#9953 should be pushed first. client/mysqldump.c: Before every CREATE EVENT, output its time zone. mysql-test/include/wait_condition.inc: Add optional $wait_timeout parameter. mysql-test/lib/init_db.sql: Add time_zone column. mysql-test/r/events.result: Update result. mysql-test/r/events_bugs.result: Update result. mysql-test/r/events_grant.result: Update result. mysql-test/r/events_restart_phase1.result: Update result. mysql-test/r/events_scheduling.result: Update result. mysql-test/r/mysqldump.result: Update result. mysql-test/r/ps.result: Update result. mysql-test/r/system_mysql_db.result: Update result. mysql-test/t/events.test: Remove STARTS from the result, as it depends on current time. mysql-test/t/events_bugs.test: Time in the past is no longer an error. mysql-test/t/events_restart_phase1.test: Fill new column 'time_zone' in mysql.event. mysql-test/t/events_scheduling.test: Cleanup: disable event scheduler. scripts/mysql_create_system_tables.sh: Add new column 'time_zone' to mysql.event. scripts/mysql_fix_privilege_tables.sql: Add new column 'time_zone' to mysql.event. sql/event_data_objects.cc: The essence of the change is the following: - for internal times use my_time_t instead of TIME. Assignment and comparison is done now on plain numbers. - in init_execute_at(), init_starts(), init_ends() convert given time to number of seconds since Epoch (aka Unix time, in UTC). - handle time_zone field loading and storing. - in get_next_time(), Unix time is converted back to event time zone, interval is added, and the result is converted to UTC again. - fix Event_timed::get_create_event() to report STARTS and ENDS. - before executing the event body we set thread time zone to the event time zone. sql/event_data_objects.h: Add time_zone member to Event_basic class. Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_db_repository.cc: Add time_zone column handling. Give a warning and do not create an event if its execution time is in the past, and ON COMPLETION NOT PRESERVE is set, because such an event should be dropped by that time. Also, do not allow ALTER EVENT to set execution time in the past when ON COMPLETION NOT PRESERVE is set. sql/event_db_repository.h: Add enum member for new time zone column. sql/event_queue.cc: Replace handling of broken down times with simple handling of my_time_t. sql/event_queue.h: Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_scheduler.cc: Add TODO comment. sql/events.cc: Send time_zone column for SHOW CREATE EVENT. sql/share/errmsg.txt: Update error message, and add two more errors. sql/sql_show.cc: Add TIME_ZONE column to the output of SHOW EVENTS. mysql-test/r/events_time_zone.result: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/r/events_time_zone.result mysql-test/t/events_time_zone.test: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/t/events_time_zone.test
2007-03-16 15:31:07 +01:00
const String *tz_name= thd->variables.time_zone->get_name();
if (!is_update || !et->starts_null)
{
fields[ET_FIELD_TIME_ZONE]->set_notnull();
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
rs|= fields[ET_FIELD_TIME_ZONE]->store(tz_name->ptr(), tz_name->length(),
tz_name->charset());
BUG#16420: Events: timestamps become UTC BUG#26429: SHOW CREATE EVENT is incorrect for an event that STARTS NOW() BUG#26431: Impossible to re-create an event from backup if its STARTS clause is in the past WL#3698: Events: execution in local time zone The problem was that local times specified by the user in AT, STARTS and ENDS of CREATE EVENT/ALTER EVENT statement were converted to UTC, and the original time zone was forgotten. This way, event scheduler couldn't honor Daylight Saving Time shifts, and times shown to the user were also in UTC. Additionally, CREATE EVENT didn't allow times in the past, thus preventing straightforward event restoration from old backups. This patch reworks event scheduler time computations, performing them in the time zone associated with the event. Also it allows times to be in the past. The patch adds time_zone column to mysql.event table. NOTE: The patch is almost final, but the bug#9953 should be pushed first. client/mysqldump.c: Before every CREATE EVENT, output its time zone. mysql-test/include/wait_condition.inc: Add optional $wait_timeout parameter. mysql-test/lib/init_db.sql: Add time_zone column. mysql-test/r/events.result: Update result. mysql-test/r/events_bugs.result: Update result. mysql-test/r/events_grant.result: Update result. mysql-test/r/events_restart_phase1.result: Update result. mysql-test/r/events_scheduling.result: Update result. mysql-test/r/mysqldump.result: Update result. mysql-test/r/ps.result: Update result. mysql-test/r/system_mysql_db.result: Update result. mysql-test/t/events.test: Remove STARTS from the result, as it depends on current time. mysql-test/t/events_bugs.test: Time in the past is no longer an error. mysql-test/t/events_restart_phase1.test: Fill new column 'time_zone' in mysql.event. mysql-test/t/events_scheduling.test: Cleanup: disable event scheduler. scripts/mysql_create_system_tables.sh: Add new column 'time_zone' to mysql.event. scripts/mysql_fix_privilege_tables.sql: Add new column 'time_zone' to mysql.event. sql/event_data_objects.cc: The essence of the change is the following: - for internal times use my_time_t instead of TIME. Assignment and comparison is done now on plain numbers. - in init_execute_at(), init_starts(), init_ends() convert given time to number of seconds since Epoch (aka Unix time, in UTC). - handle time_zone field loading and storing. - in get_next_time(), Unix time is converted back to event time zone, interval is added, and the result is converted to UTC again. - fix Event_timed::get_create_event() to report STARTS and ENDS. - before executing the event body we set thread time zone to the event time zone. sql/event_data_objects.h: Add time_zone member to Event_basic class. Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_db_repository.cc: Add time_zone column handling. Give a warning and do not create an event if its execution time is in the past, and ON COMPLETION NOT PRESERVE is set, because such an event should be dropped by that time. Also, do not allow ALTER EVENT to set execution time in the past when ON COMPLETION NOT PRESERVE is set. sql/event_db_repository.h: Add enum member for new time zone column. sql/event_queue.cc: Replace handling of broken down times with simple handling of my_time_t. sql/event_queue.h: Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_scheduler.cc: Add TODO comment. sql/events.cc: Send time_zone column for SHOW CREATE EVENT. sql/share/errmsg.txt: Update error message, and add two more errors. sql/sql_show.cc: Add TIME_ZONE column to the output of SHOW EVENTS. mysql-test/r/events_time_zone.result: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/r/events_time_zone.result mysql-test/t/events_time_zone.test: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/t/events_time_zone.test
2007-03-16 15:31:07 +01:00
}
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
fields[ET_FIELD_INTERVAL_EXPR]->set_notnull();
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
rs|= fields[ET_FIELD_INTERVAL_EXPR]->store((longlong)et->expression, TRUE);
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
fields[ET_FIELD_TRANSIENT_INTERVAL]->set_notnull();
Remove direct mapping of enum interval_type to mysql.event.interval_field This decoupling allows in further versions of MySQL enum interval_type to be reordered without this affecting any backward compatibility in the events code. This changeset doesn't change any exposed behavior but makes events' code more durable to changes outside of their code base. To the reviewer: There is no regression test included as it is impossible to construct one with the current infrastructure which can test it. To test the code one has create and event, then change the order of enum interval_type in my_time.h, update sql/time.cc, recompile the server and run it with scheduler running. include/my_time.h: Add a reminder to keep enum interval_type and interval_type_to_name in sync sql/event_data_objects.cc: When loading from disk don't use the integer value of mysql.event.interval_field because it could be different of the values of enum interval_type, if the latter is reordered in a later version of MySQL. Loaded from disk is the string value which is then resolved against interval_type_to_name to get the exact enum value we need for Event_queue_element::interval. sql/event_db_repository.cc: Use interval_type_to_name from sql/time.cc during storage thus decoupling the value stored on disk (the enum) from the integer representation in memory. interval_type can be changed and as long as interval_type_to_name is kept in sync correct values will be saved to disk. sql/mysql_priv.h: add proto of find_string_in_array sql/strfunc.cc: Add a function for searching a LEX_STRING in an array of LEX_STRINGs
2006-10-10 17:59:46 +02:00
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
rs|= fields[ET_FIELD_TRANSIENT_INTERVAL]->
Remove direct mapping of enum interval_type to mysql.event.interval_field This decoupling allows in further versions of MySQL enum interval_type to be reordered without this affecting any backward compatibility in the events code. This changeset doesn't change any exposed behavior but makes events' code more durable to changes outside of their code base. To the reviewer: There is no regression test included as it is impossible to construct one with the current infrastructure which can test it. To test the code one has create and event, then change the order of enum interval_type in my_time.h, update sql/time.cc, recompile the server and run it with scheduler running. include/my_time.h: Add a reminder to keep enum interval_type and interval_type_to_name in sync sql/event_data_objects.cc: When loading from disk don't use the integer value of mysql.event.interval_field because it could be different of the values of enum interval_type, if the latter is reordered in a later version of MySQL. Loaded from disk is the string value which is then resolved against interval_type_to_name to get the exact enum value we need for Event_queue_element::interval. sql/event_db_repository.cc: Use interval_type_to_name from sql/time.cc during storage thus decoupling the value stored on disk (the enum) from the integer representation in memory. interval_type can be changed and as long as interval_type_to_name is kept in sync correct values will be saved to disk. sql/mysql_priv.h: add proto of find_string_in_array sql/strfunc.cc: Add a function for searching a LEX_STRING in an array of LEX_STRINGs
2006-10-10 17:59:46 +02:00
store(interval_type_to_name[et->interval].str,
interval_type_to_name[et->interval].length,
scs);
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
fields[ET_FIELD_EXECUTE_AT]->set_null();
if (!et->starts_null)
{
Removed not used define YY_MAGIC_BELOW Made year 2000 handling more uniform Removed year 2000 handling out from calc_days() The above removes some bugs in date/datetimes with year between 0 and 200 Now we get a note when we insert a datetime value into a date column For default values to CREATE, don't give errors for warning level NOTE Fixed some compiler failures Added library ws2_32 for windows compilation (needed if we want to compile with IOCP support) Removed duplicate typedef TIME and replaced it with MYSQL_TIME Better (more complete) fix for: Bug#21103 "DATE column not compared as DATE" Fixed properly Bug#18997 "DATE_ADD and DATE_SUB perform year2K autoconversion magic on 4-digit year value" Fixed Bug#23093 "Implicit conversion of 9912101 to date does not match cast(9912101 as date)" include/my_time.h: Removed not used define YY_MAGIC_BELOW Added prototype for year_2000_handling() mysql-test/r/date_formats.result: Updated results (fixed bug in date_format() with year < 99) mysql-test/r/func_sapdb.result: Added more testing of make_date() mysql-test/r/func_time.result: Fixed bug in date_sub() with years < 200 mysql-test/r/ps_2myisam.result: Now we get a note when we insert a datetime value into a date column mysql-test/r/ps_3innodb.result: Now we get a note when we insert a datetime value into a date column mysql-test/r/ps_4heap.result: Now we get a note when we insert a datetime value into a date column mysql-test/r/ps_5merge.result: Now we get a note when we insert a datetime value into a date column mysql-test/r/ps_7ndb.result: Now we get a note when we insert a datetime value into a date column mysql-test/r/type_date.result: Added test for date conversions mysql-test/r/type_datetime.result: Added testcase for datetime to date conversion. mysql-test/t/date_formats.test: Added testing of dates < 200 mysql-test/t/func_sapdb.test: More testing of makedate() mysql-test/t/type_date.test: Added test for date conversions mysql-test/t/type_datetime.test: Added testcase for datetime to date conversion. sql/CMakeLists.txt: Added library ws2_32 (needed if we want to compile with IOCP support) sql/event_data_objects.cc: TIME -> MYSQL_TIME sql/event_db_repository.cc: TIME -> MYSQL_TIME sql/event_queue.cc: TIME -> MYSQL_TIME sql/field.cc: Give note if we insert a datetime value in a date field Don't give notes if we are doing internal test conversions (like from convert_constant_item()) More documentation (store functions can now return '3' to inform that the function did return a NOTE (not warning or error)) Revert some changes in Field_newdate::store() to get more optimal code Field::set_warning() will now ignore notes if CHECK_FIELD_IGNORE is set. New parameters to make_truncated_value_warning() sql/field.h: TIME -> MYSQL_TIME sql/item.cc: New parameters to make_truncated_value_warning() Fixed get_date() to call number_to_datetime() if argument is not a string. Fixes Bug#23093 Implicit conversion of 9912101 to date does not match cast(9912101 as date) sql/item.h: TIME -> MYSQL_TIME sql/item_cmpfunc.cc: Don't print notes in convert_constant_item() sql/item_func.h: TIME -> MYSQL_TIME sql/item_timefunc.cc: New parameters to make_truncated_value_warning() Moved year 2000 handling out from calc_days() Don't return NULL for years < 200 in date_add/date_sub sql/item_timefunc.h: TIME -> MYSQL_TIME sql/my_decimal.cc: TIME -> MYSQL_TIME sql/my_decimal.h: TIME -> MYSQL_TIME sql/mysql_priv.h: Added error level to make_truncated_value_warning() sql/protocol.cc: TIME -> MYSQL_TIME sql/protocol.h: TIME -> MYSQL_TIME sql/sp.cc: TIME -> MYSQL_TIME sql/sql_base.cc: Make testing of result value of save_in_field() uniform sql-common/my_time.c: Added year_2000_handling() Removed year 2000 handling from calc_daynr() sql/sql_class.h: TIME -> MYSQL_TIME sql/sql_show.cc: TIME -> MYSQL_TIME sql/structs.h: TIME -> MYSQL_TIME sql/time.cc: Added error level to make_truncated_value_warning() sql/tztime.cc: TIME -> MYSQL_TIME sql/tztime.h: TIME -> MYSQL_TIME sql/unireg.cc: For default values to CREATE, don't give errors for warning level NOTE (Fixed failed CREATE when we give a datetime value to a date field) strings/ctype-utf8.c: Fixed compiler failures win/README: More comments
2007-03-23 21:08:31 +01:00
MYSQL_TIME time;
Bug#28641 CREATE EVENT with '2038.01.18 03:00:00' let server crash. Creating an EVENT to be executed at a time close to the end of the allowed range (2038.01.19 03:14:07 UTC) would cause the server to crash. The expected behavior is to accept all calendar times within the interval and reject all other values without crashing. This patch replaces the function 'sec_to_epoch_TIME' with a Time_zone API call. This function was broken because it invoked the internal function 'sec_to_epoch' without respecting the restrictions on the function parameters (and this caused assertion failure). It also was used as a reverse function to Time_zone_utc::gmt_sec_to_TIME which it isn't. mysql-test/r/events_bugs.result: Added test case mysql-test/t/events_bugs.test: Added test case sql/event_data_objects.cc: Replaced function 'sec_since_epoch_TIME' since it was implemented as a wrapper around 'sec_since_epoch' without taking parameter restrictions into account. The function was used to load information about event execution time from mysql.events table. Further more, the function wasn't the inverse function of Time_zone_utc::gmt_sec_to_TIME() which was used by events code to store information about event execution time. sql/event_db_repository.cc: Replaced my_tz_UTC object with my_tz_OFFSET0 object because the first one doesn't supply us with a bijective MYSQL_TIME<->my_time_t translation. Instead the function sec_since_epoch_TIME was used as a reverse function to the method my_tz_UTC::gmt_sec_to_TIME. sql/event_queue.cc: Replaced my_tz_UTC object with my_tz_OFFSET0 object because the first one doesn't supply us with a bijective MYSQL_TIME<->my_time_t translation. Instead the function sec_since_epoch_TIME was used as a reverse function to the method my_tz_UTC::gmt_sec_to_TIME. sql/tztime.cc: * Remove function 'sec_since_epoch_TIME' since it was implemented as a wrapper around 'sec_since_epoch' without taking parameter restrictions into account. The function was used to load information about event execution time from mysql.events table. Further more, the function wasn't the inverse function of Time_zone_utc::gmt_sec_to_TIME() which was used by events code to store information about event execution time. * Added static Time_zone object for UTC+0 time zone. sql/tztime.h: Include extern pointer to static Time_zone object.
2007-07-25 09:43:49 +02:00
my_tz_OFFSET0->gmt_sec_to_TIME(&time, et->starts);
BUG#16420: Events: timestamps become UTC BUG#26429: SHOW CREATE EVENT is incorrect for an event that STARTS NOW() BUG#26431: Impossible to re-create an event from backup if its STARTS clause is in the past WL#3698: Events: execution in local time zone The problem was that local times specified by the user in AT, STARTS and ENDS of CREATE EVENT/ALTER EVENT statement were converted to UTC, and the original time zone was forgotten. This way, event scheduler couldn't honor Daylight Saving Time shifts, and times shown to the user were also in UTC. Additionally, CREATE EVENT didn't allow times in the past, thus preventing straightforward event restoration from old backups. This patch reworks event scheduler time computations, performing them in the time zone associated with the event. Also it allows times to be in the past. The patch adds time_zone column to mysql.event table. NOTE: The patch is almost final, but the bug#9953 should be pushed first. client/mysqldump.c: Before every CREATE EVENT, output its time zone. mysql-test/include/wait_condition.inc: Add optional $wait_timeout parameter. mysql-test/lib/init_db.sql: Add time_zone column. mysql-test/r/events.result: Update result. mysql-test/r/events_bugs.result: Update result. mysql-test/r/events_grant.result: Update result. mysql-test/r/events_restart_phase1.result: Update result. mysql-test/r/events_scheduling.result: Update result. mysql-test/r/mysqldump.result: Update result. mysql-test/r/ps.result: Update result. mysql-test/r/system_mysql_db.result: Update result. mysql-test/t/events.test: Remove STARTS from the result, as it depends on current time. mysql-test/t/events_bugs.test: Time in the past is no longer an error. mysql-test/t/events_restart_phase1.test: Fill new column 'time_zone' in mysql.event. mysql-test/t/events_scheduling.test: Cleanup: disable event scheduler. scripts/mysql_create_system_tables.sh: Add new column 'time_zone' to mysql.event. scripts/mysql_fix_privilege_tables.sql: Add new column 'time_zone' to mysql.event. sql/event_data_objects.cc: The essence of the change is the following: - for internal times use my_time_t instead of TIME. Assignment and comparison is done now on plain numbers. - in init_execute_at(), init_starts(), init_ends() convert given time to number of seconds since Epoch (aka Unix time, in UTC). - handle time_zone field loading and storing. - in get_next_time(), Unix time is converted back to event time zone, interval is added, and the result is converted to UTC again. - fix Event_timed::get_create_event() to report STARTS and ENDS. - before executing the event body we set thread time zone to the event time zone. sql/event_data_objects.h: Add time_zone member to Event_basic class. Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_db_repository.cc: Add time_zone column handling. Give a warning and do not create an event if its execution time is in the past, and ON COMPLETION NOT PRESERVE is set, because such an event should be dropped by that time. Also, do not allow ALTER EVENT to set execution time in the past when ON COMPLETION NOT PRESERVE is set. sql/event_db_repository.h: Add enum member for new time zone column. sql/event_queue.cc: Replace handling of broken down times with simple handling of my_time_t. sql/event_queue.h: Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_scheduler.cc: Add TODO comment. sql/events.cc: Send time_zone column for SHOW CREATE EVENT. sql/share/errmsg.txt: Update error message, and add two more errors. sql/sql_show.cc: Add TIME_ZONE column to the output of SHOW EVENTS. mysql-test/r/events_time_zone.result: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/r/events_time_zone.result mysql-test/t/events_time_zone.test: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/t/events_time_zone.test
2007-03-16 15:31:07 +01:00
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
fields[ET_FIELD_STARTS]->set_notnull();
fields[ET_FIELD_STARTS]->store_time(&time);
WL#3337 (Event scheduler new architecture) Cleaned up the code a bit. Fixed few leaks. This code still does not load events on server startup from disk. The problem is that there is a need for a THD instance, which does not exist during server boot. This will be solved soon. Still Event_timed is used both for the memory queue and for exectution. This will be changed according to WL#3337 probably in the next commit. sql/event_data_objects.cc: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_data_objects.h: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_db_repository.cc: Cosmetics. Add a new method load_named_event_job, to be made complete in the next commit. It will load from disk an instance of Event_job_data to be used during execution. sql/event_db_repository.h: find_event does not need MEM_ROOT anymore because the memory is allocated on Event's own root. sql/event_queue.cc: Remove dead code. Move dumping of the queue to separate method. Make critical sections in create_event & update_event as small as possible - load the new event outside of the section and free the object also outside of it. sql/event_queue.h: init -> init_queue -> easier for ctags deinit -> deinit_queue -> easier for ctags sql/event_scheduler.cc: empty this file sql/event_scheduler.h: empty this file sql/event_scheduler_ng.cc: add back DBUG_RETURN(0) in thread handlers. We don't stop running events when stopping the scheduler. Therefore remove this method now. If it is needed later it can be added back. sql/event_scheduler_ng.h: Remove stop_all_running_threads() init -> init_scheduler deinit -> deinit_scheduler easier for ctags sql/events.cc: Cosmetics sql/events.h: Cosmetics sql/set_var.cc: Remove references to dead code sql/sql_parse.cc: Reorganize a bit.
2006-07-05 17:12:50 +02:00
}
if (!et->ends_null)
{
Removed not used define YY_MAGIC_BELOW Made year 2000 handling more uniform Removed year 2000 handling out from calc_days() The above removes some bugs in date/datetimes with year between 0 and 200 Now we get a note when we insert a datetime value into a date column For default values to CREATE, don't give errors for warning level NOTE Fixed some compiler failures Added library ws2_32 for windows compilation (needed if we want to compile with IOCP support) Removed duplicate typedef TIME and replaced it with MYSQL_TIME Better (more complete) fix for: Bug#21103 "DATE column not compared as DATE" Fixed properly Bug#18997 "DATE_ADD and DATE_SUB perform year2K autoconversion magic on 4-digit year value" Fixed Bug#23093 "Implicit conversion of 9912101 to date does not match cast(9912101 as date)" include/my_time.h: Removed not used define YY_MAGIC_BELOW Added prototype for year_2000_handling() mysql-test/r/date_formats.result: Updated results (fixed bug in date_format() with year < 99) mysql-test/r/func_sapdb.result: Added more testing of make_date() mysql-test/r/func_time.result: Fixed bug in date_sub() with years < 200 mysql-test/r/ps_2myisam.result: Now we get a note when we insert a datetime value into a date column mysql-test/r/ps_3innodb.result: Now we get a note when we insert a datetime value into a date column mysql-test/r/ps_4heap.result: Now we get a note when we insert a datetime value into a date column mysql-test/r/ps_5merge.result: Now we get a note when we insert a datetime value into a date column mysql-test/r/ps_7ndb.result: Now we get a note when we insert a datetime value into a date column mysql-test/r/type_date.result: Added test for date conversions mysql-test/r/type_datetime.result: Added testcase for datetime to date conversion. mysql-test/t/date_formats.test: Added testing of dates < 200 mysql-test/t/func_sapdb.test: More testing of makedate() mysql-test/t/type_date.test: Added test for date conversions mysql-test/t/type_datetime.test: Added testcase for datetime to date conversion. sql/CMakeLists.txt: Added library ws2_32 (needed if we want to compile with IOCP support) sql/event_data_objects.cc: TIME -> MYSQL_TIME sql/event_db_repository.cc: TIME -> MYSQL_TIME sql/event_queue.cc: TIME -> MYSQL_TIME sql/field.cc: Give note if we insert a datetime value in a date field Don't give notes if we are doing internal test conversions (like from convert_constant_item()) More documentation (store functions can now return '3' to inform that the function did return a NOTE (not warning or error)) Revert some changes in Field_newdate::store() to get more optimal code Field::set_warning() will now ignore notes if CHECK_FIELD_IGNORE is set. New parameters to make_truncated_value_warning() sql/field.h: TIME -> MYSQL_TIME sql/item.cc: New parameters to make_truncated_value_warning() Fixed get_date() to call number_to_datetime() if argument is not a string. Fixes Bug#23093 Implicit conversion of 9912101 to date does not match cast(9912101 as date) sql/item.h: TIME -> MYSQL_TIME sql/item_cmpfunc.cc: Don't print notes in convert_constant_item() sql/item_func.h: TIME -> MYSQL_TIME sql/item_timefunc.cc: New parameters to make_truncated_value_warning() Moved year 2000 handling out from calc_days() Don't return NULL for years < 200 in date_add/date_sub sql/item_timefunc.h: TIME -> MYSQL_TIME sql/my_decimal.cc: TIME -> MYSQL_TIME sql/my_decimal.h: TIME -> MYSQL_TIME sql/mysql_priv.h: Added error level to make_truncated_value_warning() sql/protocol.cc: TIME -> MYSQL_TIME sql/protocol.h: TIME -> MYSQL_TIME sql/sp.cc: TIME -> MYSQL_TIME sql/sql_base.cc: Make testing of result value of save_in_field() uniform sql-common/my_time.c: Added year_2000_handling() Removed year 2000 handling from calc_daynr() sql/sql_class.h: TIME -> MYSQL_TIME sql/sql_show.cc: TIME -> MYSQL_TIME sql/structs.h: TIME -> MYSQL_TIME sql/time.cc: Added error level to make_truncated_value_warning() sql/tztime.cc: TIME -> MYSQL_TIME sql/tztime.h: TIME -> MYSQL_TIME sql/unireg.cc: For default values to CREATE, don't give errors for warning level NOTE (Fixed failed CREATE when we give a datetime value to a date field) strings/ctype-utf8.c: Fixed compiler failures win/README: More comments
2007-03-23 21:08:31 +01:00
MYSQL_TIME time;
Bug#28641 CREATE EVENT with '2038.01.18 03:00:00' let server crash. Creating an EVENT to be executed at a time close to the end of the allowed range (2038.01.19 03:14:07 UTC) would cause the server to crash. The expected behavior is to accept all calendar times within the interval and reject all other values without crashing. This patch replaces the function 'sec_to_epoch_TIME' with a Time_zone API call. This function was broken because it invoked the internal function 'sec_to_epoch' without respecting the restrictions on the function parameters (and this caused assertion failure). It also was used as a reverse function to Time_zone_utc::gmt_sec_to_TIME which it isn't. mysql-test/r/events_bugs.result: Added test case mysql-test/t/events_bugs.test: Added test case sql/event_data_objects.cc: Replaced function 'sec_since_epoch_TIME' since it was implemented as a wrapper around 'sec_since_epoch' without taking parameter restrictions into account. The function was used to load information about event execution time from mysql.events table. Further more, the function wasn't the inverse function of Time_zone_utc::gmt_sec_to_TIME() which was used by events code to store information about event execution time. sql/event_db_repository.cc: Replaced my_tz_UTC object with my_tz_OFFSET0 object because the first one doesn't supply us with a bijective MYSQL_TIME<->my_time_t translation. Instead the function sec_since_epoch_TIME was used as a reverse function to the method my_tz_UTC::gmt_sec_to_TIME. sql/event_queue.cc: Replaced my_tz_UTC object with my_tz_OFFSET0 object because the first one doesn't supply us with a bijective MYSQL_TIME<->my_time_t translation. Instead the function sec_since_epoch_TIME was used as a reverse function to the method my_tz_UTC::gmt_sec_to_TIME. sql/tztime.cc: * Remove function 'sec_since_epoch_TIME' since it was implemented as a wrapper around 'sec_since_epoch' without taking parameter restrictions into account. The function was used to load information about event execution time from mysql.events table. Further more, the function wasn't the inverse function of Time_zone_utc::gmt_sec_to_TIME() which was used by events code to store information about event execution time. * Added static Time_zone object for UTC+0 time zone. sql/tztime.h: Include extern pointer to static Time_zone object.
2007-07-25 09:43:49 +02:00
my_tz_OFFSET0->gmt_sec_to_TIME(&time, et->ends);
BUG#16420: Events: timestamps become UTC BUG#26429: SHOW CREATE EVENT is incorrect for an event that STARTS NOW() BUG#26431: Impossible to re-create an event from backup if its STARTS clause is in the past WL#3698: Events: execution in local time zone The problem was that local times specified by the user in AT, STARTS and ENDS of CREATE EVENT/ALTER EVENT statement were converted to UTC, and the original time zone was forgotten. This way, event scheduler couldn't honor Daylight Saving Time shifts, and times shown to the user were also in UTC. Additionally, CREATE EVENT didn't allow times in the past, thus preventing straightforward event restoration from old backups. This patch reworks event scheduler time computations, performing them in the time zone associated with the event. Also it allows times to be in the past. The patch adds time_zone column to mysql.event table. NOTE: The patch is almost final, but the bug#9953 should be pushed first. client/mysqldump.c: Before every CREATE EVENT, output its time zone. mysql-test/include/wait_condition.inc: Add optional $wait_timeout parameter. mysql-test/lib/init_db.sql: Add time_zone column. mysql-test/r/events.result: Update result. mysql-test/r/events_bugs.result: Update result. mysql-test/r/events_grant.result: Update result. mysql-test/r/events_restart_phase1.result: Update result. mysql-test/r/events_scheduling.result: Update result. mysql-test/r/mysqldump.result: Update result. mysql-test/r/ps.result: Update result. mysql-test/r/system_mysql_db.result: Update result. mysql-test/t/events.test: Remove STARTS from the result, as it depends on current time. mysql-test/t/events_bugs.test: Time in the past is no longer an error. mysql-test/t/events_restart_phase1.test: Fill new column 'time_zone' in mysql.event. mysql-test/t/events_scheduling.test: Cleanup: disable event scheduler. scripts/mysql_create_system_tables.sh: Add new column 'time_zone' to mysql.event. scripts/mysql_fix_privilege_tables.sql: Add new column 'time_zone' to mysql.event. sql/event_data_objects.cc: The essence of the change is the following: - for internal times use my_time_t instead of TIME. Assignment and comparison is done now on plain numbers. - in init_execute_at(), init_starts(), init_ends() convert given time to number of seconds since Epoch (aka Unix time, in UTC). - handle time_zone field loading and storing. - in get_next_time(), Unix time is converted back to event time zone, interval is added, and the result is converted to UTC again. - fix Event_timed::get_create_event() to report STARTS and ENDS. - before executing the event body we set thread time zone to the event time zone. sql/event_data_objects.h: Add time_zone member to Event_basic class. Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_db_repository.cc: Add time_zone column handling. Give a warning and do not create an event if its execution time is in the past, and ON COMPLETION NOT PRESERVE is set, because such an event should be dropped by that time. Also, do not allow ALTER EVENT to set execution time in the past when ON COMPLETION NOT PRESERVE is set. sql/event_db_repository.h: Add enum member for new time zone column. sql/event_queue.cc: Replace handling of broken down times with simple handling of my_time_t. sql/event_queue.h: Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_scheduler.cc: Add TODO comment. sql/events.cc: Send time_zone column for SHOW CREATE EVENT. sql/share/errmsg.txt: Update error message, and add two more errors. sql/sql_show.cc: Add TIME_ZONE column to the output of SHOW EVENTS. mysql-test/r/events_time_zone.result: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/r/events_time_zone.result mysql-test/t/events_time_zone.test: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/t/events_time_zone.test
2007-03-16 15:31:07 +01:00
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
fields[ET_FIELD_ENDS]->set_notnull();
fields[ET_FIELD_ENDS]->store_time(&time);
}
}
BUG#16420: Events: timestamps become UTC BUG#26429: SHOW CREATE EVENT is incorrect for an event that STARTS NOW() BUG#26431: Impossible to re-create an event from backup if its STARTS clause is in the past WL#3698: Events: execution in local time zone The problem was that local times specified by the user in AT, STARTS and ENDS of CREATE EVENT/ALTER EVENT statement were converted to UTC, and the original time zone was forgotten. This way, event scheduler couldn't honor Daylight Saving Time shifts, and times shown to the user were also in UTC. Additionally, CREATE EVENT didn't allow times in the past, thus preventing straightforward event restoration from old backups. This patch reworks event scheduler time computations, performing them in the time zone associated with the event. Also it allows times to be in the past. The patch adds time_zone column to mysql.event table. NOTE: The patch is almost final, but the bug#9953 should be pushed first. client/mysqldump.c: Before every CREATE EVENT, output its time zone. mysql-test/include/wait_condition.inc: Add optional $wait_timeout parameter. mysql-test/lib/init_db.sql: Add time_zone column. mysql-test/r/events.result: Update result. mysql-test/r/events_bugs.result: Update result. mysql-test/r/events_grant.result: Update result. mysql-test/r/events_restart_phase1.result: Update result. mysql-test/r/events_scheduling.result: Update result. mysql-test/r/mysqldump.result: Update result. mysql-test/r/ps.result: Update result. mysql-test/r/system_mysql_db.result: Update result. mysql-test/t/events.test: Remove STARTS from the result, as it depends on current time. mysql-test/t/events_bugs.test: Time in the past is no longer an error. mysql-test/t/events_restart_phase1.test: Fill new column 'time_zone' in mysql.event. mysql-test/t/events_scheduling.test: Cleanup: disable event scheduler. scripts/mysql_create_system_tables.sh: Add new column 'time_zone' to mysql.event. scripts/mysql_fix_privilege_tables.sql: Add new column 'time_zone' to mysql.event. sql/event_data_objects.cc: The essence of the change is the following: - for internal times use my_time_t instead of TIME. Assignment and comparison is done now on plain numbers. - in init_execute_at(), init_starts(), init_ends() convert given time to number of seconds since Epoch (aka Unix time, in UTC). - handle time_zone field loading and storing. - in get_next_time(), Unix time is converted back to event time zone, interval is added, and the result is converted to UTC again. - fix Event_timed::get_create_event() to report STARTS and ENDS. - before executing the event body we set thread time zone to the event time zone. sql/event_data_objects.h: Add time_zone member to Event_basic class. Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_db_repository.cc: Add time_zone column handling. Give a warning and do not create an event if its execution time is in the past, and ON COMPLETION NOT PRESERVE is set, because such an event should be dropped by that time. Also, do not allow ALTER EVENT to set execution time in the past when ON COMPLETION NOT PRESERVE is set. sql/event_db_repository.h: Add enum member for new time zone column. sql/event_queue.cc: Replace handling of broken down times with simple handling of my_time_t. sql/event_queue.h: Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_scheduler.cc: Add TODO comment. sql/events.cc: Send time_zone column for SHOW CREATE EVENT. sql/share/errmsg.txt: Update error message, and add two more errors. sql/sql_show.cc: Add TIME_ZONE column to the output of SHOW EVENTS. mysql-test/r/events_time_zone.result: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/r/events_time_zone.result mysql-test/t/events_time_zone.test: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/t/events_time_zone.test
2007-03-16 15:31:07 +01:00
else if (et->execute_at)
{
BUG#16420: Events: timestamps become UTC BUG#26429: SHOW CREATE EVENT is incorrect for an event that STARTS NOW() BUG#26431: Impossible to re-create an event from backup if its STARTS clause is in the past WL#3698: Events: execution in local time zone The problem was that local times specified by the user in AT, STARTS and ENDS of CREATE EVENT/ALTER EVENT statement were converted to UTC, and the original time zone was forgotten. This way, event scheduler couldn't honor Daylight Saving Time shifts, and times shown to the user were also in UTC. Additionally, CREATE EVENT didn't allow times in the past, thus preventing straightforward event restoration from old backups. This patch reworks event scheduler time computations, performing them in the time zone associated with the event. Also it allows times to be in the past. The patch adds time_zone column to mysql.event table. NOTE: The patch is almost final, but the bug#9953 should be pushed first. client/mysqldump.c: Before every CREATE EVENT, output its time zone. mysql-test/include/wait_condition.inc: Add optional $wait_timeout parameter. mysql-test/lib/init_db.sql: Add time_zone column. mysql-test/r/events.result: Update result. mysql-test/r/events_bugs.result: Update result. mysql-test/r/events_grant.result: Update result. mysql-test/r/events_restart_phase1.result: Update result. mysql-test/r/events_scheduling.result: Update result. mysql-test/r/mysqldump.result: Update result. mysql-test/r/ps.result: Update result. mysql-test/r/system_mysql_db.result: Update result. mysql-test/t/events.test: Remove STARTS from the result, as it depends on current time. mysql-test/t/events_bugs.test: Time in the past is no longer an error. mysql-test/t/events_restart_phase1.test: Fill new column 'time_zone' in mysql.event. mysql-test/t/events_scheduling.test: Cleanup: disable event scheduler. scripts/mysql_create_system_tables.sh: Add new column 'time_zone' to mysql.event. scripts/mysql_fix_privilege_tables.sql: Add new column 'time_zone' to mysql.event. sql/event_data_objects.cc: The essence of the change is the following: - for internal times use my_time_t instead of TIME. Assignment and comparison is done now on plain numbers. - in init_execute_at(), init_starts(), init_ends() convert given time to number of seconds since Epoch (aka Unix time, in UTC). - handle time_zone field loading and storing. - in get_next_time(), Unix time is converted back to event time zone, interval is added, and the result is converted to UTC again. - fix Event_timed::get_create_event() to report STARTS and ENDS. - before executing the event body we set thread time zone to the event time zone. sql/event_data_objects.h: Add time_zone member to Event_basic class. Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_db_repository.cc: Add time_zone column handling. Give a warning and do not create an event if its execution time is in the past, and ON COMPLETION NOT PRESERVE is set, because such an event should be dropped by that time. Also, do not allow ALTER EVENT to set execution time in the past when ON COMPLETION NOT PRESERVE is set. sql/event_db_repository.h: Add enum member for new time zone column. sql/event_queue.cc: Replace handling of broken down times with simple handling of my_time_t. sql/event_queue.h: Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_scheduler.cc: Add TODO comment. sql/events.cc: Send time_zone column for SHOW CREATE EVENT. sql/share/errmsg.txt: Update error message, and add two more errors. sql/sql_show.cc: Add TIME_ZONE column to the output of SHOW EVENTS. mysql-test/r/events_time_zone.result: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/r/events_time_zone.result mysql-test/t/events_time_zone.test: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/t/events_time_zone.test
2007-03-16 15:31:07 +01:00
const String *tz_name= thd->variables.time_zone->get_name();
fields[ET_FIELD_TIME_ZONE]->set_notnull();
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
rs|= fields[ET_FIELD_TIME_ZONE]->store(tz_name->ptr(), tz_name->length(),
tz_name->charset());
BUG#16420: Events: timestamps become UTC BUG#26429: SHOW CREATE EVENT is incorrect for an event that STARTS NOW() BUG#26431: Impossible to re-create an event from backup if its STARTS clause is in the past WL#3698: Events: execution in local time zone The problem was that local times specified by the user in AT, STARTS and ENDS of CREATE EVENT/ALTER EVENT statement were converted to UTC, and the original time zone was forgotten. This way, event scheduler couldn't honor Daylight Saving Time shifts, and times shown to the user were also in UTC. Additionally, CREATE EVENT didn't allow times in the past, thus preventing straightforward event restoration from old backups. This patch reworks event scheduler time computations, performing them in the time zone associated with the event. Also it allows times to be in the past. The patch adds time_zone column to mysql.event table. NOTE: The patch is almost final, but the bug#9953 should be pushed first. client/mysqldump.c: Before every CREATE EVENT, output its time zone. mysql-test/include/wait_condition.inc: Add optional $wait_timeout parameter. mysql-test/lib/init_db.sql: Add time_zone column. mysql-test/r/events.result: Update result. mysql-test/r/events_bugs.result: Update result. mysql-test/r/events_grant.result: Update result. mysql-test/r/events_restart_phase1.result: Update result. mysql-test/r/events_scheduling.result: Update result. mysql-test/r/mysqldump.result: Update result. mysql-test/r/ps.result: Update result. mysql-test/r/system_mysql_db.result: Update result. mysql-test/t/events.test: Remove STARTS from the result, as it depends on current time. mysql-test/t/events_bugs.test: Time in the past is no longer an error. mysql-test/t/events_restart_phase1.test: Fill new column 'time_zone' in mysql.event. mysql-test/t/events_scheduling.test: Cleanup: disable event scheduler. scripts/mysql_create_system_tables.sh: Add new column 'time_zone' to mysql.event. scripts/mysql_fix_privilege_tables.sql: Add new column 'time_zone' to mysql.event. sql/event_data_objects.cc: The essence of the change is the following: - for internal times use my_time_t instead of TIME. Assignment and comparison is done now on plain numbers. - in init_execute_at(), init_starts(), init_ends() convert given time to number of seconds since Epoch (aka Unix time, in UTC). - handle time_zone field loading and storing. - in get_next_time(), Unix time is converted back to event time zone, interval is added, and the result is converted to UTC again. - fix Event_timed::get_create_event() to report STARTS and ENDS. - before executing the event body we set thread time zone to the event time zone. sql/event_data_objects.h: Add time_zone member to Event_basic class. Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_db_repository.cc: Add time_zone column handling. Give a warning and do not create an event if its execution time is in the past, and ON COMPLETION NOT PRESERVE is set, because such an event should be dropped by that time. Also, do not allow ALTER EVENT to set execution time in the past when ON COMPLETION NOT PRESERVE is set. sql/event_db_repository.h: Add enum member for new time zone column. sql/event_queue.cc: Replace handling of broken down times with simple handling of my_time_t. sql/event_queue.h: Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_scheduler.cc: Add TODO comment. sql/events.cc: Send time_zone column for SHOW CREATE EVENT. sql/share/errmsg.txt: Update error message, and add two more errors. sql/sql_show.cc: Add TIME_ZONE column to the output of SHOW EVENTS. mysql-test/r/events_time_zone.result: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/r/events_time_zone.result mysql-test/t/events_time_zone.test: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/t/events_time_zone.test
2007-03-16 15:31:07 +01:00
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
fields[ET_FIELD_INTERVAL_EXPR]->set_null();
fields[ET_FIELD_TRANSIENT_INTERVAL]->set_null();
fields[ET_FIELD_STARTS]->set_null();
fields[ET_FIELD_ENDS]->set_null();
Removed not used define YY_MAGIC_BELOW Made year 2000 handling more uniform Removed year 2000 handling out from calc_days() The above removes some bugs in date/datetimes with year between 0 and 200 Now we get a note when we insert a datetime value into a date column For default values to CREATE, don't give errors for warning level NOTE Fixed some compiler failures Added library ws2_32 for windows compilation (needed if we want to compile with IOCP support) Removed duplicate typedef TIME and replaced it with MYSQL_TIME Better (more complete) fix for: Bug#21103 "DATE column not compared as DATE" Fixed properly Bug#18997 "DATE_ADD and DATE_SUB perform year2K autoconversion magic on 4-digit year value" Fixed Bug#23093 "Implicit conversion of 9912101 to date does not match cast(9912101 as date)" include/my_time.h: Removed not used define YY_MAGIC_BELOW Added prototype for year_2000_handling() mysql-test/r/date_formats.result: Updated results (fixed bug in date_format() with year < 99) mysql-test/r/func_sapdb.result: Added more testing of make_date() mysql-test/r/func_time.result: Fixed bug in date_sub() with years < 200 mysql-test/r/ps_2myisam.result: Now we get a note when we insert a datetime value into a date column mysql-test/r/ps_3innodb.result: Now we get a note when we insert a datetime value into a date column mysql-test/r/ps_4heap.result: Now we get a note when we insert a datetime value into a date column mysql-test/r/ps_5merge.result: Now we get a note when we insert a datetime value into a date column mysql-test/r/ps_7ndb.result: Now we get a note when we insert a datetime value into a date column mysql-test/r/type_date.result: Added test for date conversions mysql-test/r/type_datetime.result: Added testcase for datetime to date conversion. mysql-test/t/date_formats.test: Added testing of dates < 200 mysql-test/t/func_sapdb.test: More testing of makedate() mysql-test/t/type_date.test: Added test for date conversions mysql-test/t/type_datetime.test: Added testcase for datetime to date conversion. sql/CMakeLists.txt: Added library ws2_32 (needed if we want to compile with IOCP support) sql/event_data_objects.cc: TIME -> MYSQL_TIME sql/event_db_repository.cc: TIME -> MYSQL_TIME sql/event_queue.cc: TIME -> MYSQL_TIME sql/field.cc: Give note if we insert a datetime value in a date field Don't give notes if we are doing internal test conversions (like from convert_constant_item()) More documentation (store functions can now return '3' to inform that the function did return a NOTE (not warning or error)) Revert some changes in Field_newdate::store() to get more optimal code Field::set_warning() will now ignore notes if CHECK_FIELD_IGNORE is set. New parameters to make_truncated_value_warning() sql/field.h: TIME -> MYSQL_TIME sql/item.cc: New parameters to make_truncated_value_warning() Fixed get_date() to call number_to_datetime() if argument is not a string. Fixes Bug#23093 Implicit conversion of 9912101 to date does not match cast(9912101 as date) sql/item.h: TIME -> MYSQL_TIME sql/item_cmpfunc.cc: Don't print notes in convert_constant_item() sql/item_func.h: TIME -> MYSQL_TIME sql/item_timefunc.cc: New parameters to make_truncated_value_warning() Moved year 2000 handling out from calc_days() Don't return NULL for years < 200 in date_add/date_sub sql/item_timefunc.h: TIME -> MYSQL_TIME sql/my_decimal.cc: TIME -> MYSQL_TIME sql/my_decimal.h: TIME -> MYSQL_TIME sql/mysql_priv.h: Added error level to make_truncated_value_warning() sql/protocol.cc: TIME -> MYSQL_TIME sql/protocol.h: TIME -> MYSQL_TIME sql/sp.cc: TIME -> MYSQL_TIME sql/sql_base.cc: Make testing of result value of save_in_field() uniform sql-common/my_time.c: Added year_2000_handling() Removed year 2000 handling from calc_daynr() sql/sql_class.h: TIME -> MYSQL_TIME sql/sql_show.cc: TIME -> MYSQL_TIME sql/structs.h: TIME -> MYSQL_TIME sql/time.cc: Added error level to make_truncated_value_warning() sql/tztime.cc: TIME -> MYSQL_TIME sql/tztime.h: TIME -> MYSQL_TIME sql/unireg.cc: For default values to CREATE, don't give errors for warning level NOTE (Fixed failed CREATE when we give a datetime value to a date field) strings/ctype-utf8.c: Fixed compiler failures win/README: More comments
2007-03-23 21:08:31 +01:00
MYSQL_TIME time;
Bug#28641 CREATE EVENT with '2038.01.18 03:00:00' let server crash. Creating an EVENT to be executed at a time close to the end of the allowed range (2038.01.19 03:14:07 UTC) would cause the server to crash. The expected behavior is to accept all calendar times within the interval and reject all other values without crashing. This patch replaces the function 'sec_to_epoch_TIME' with a Time_zone API call. This function was broken because it invoked the internal function 'sec_to_epoch' without respecting the restrictions on the function parameters (and this caused assertion failure). It also was used as a reverse function to Time_zone_utc::gmt_sec_to_TIME which it isn't. mysql-test/r/events_bugs.result: Added test case mysql-test/t/events_bugs.test: Added test case sql/event_data_objects.cc: Replaced function 'sec_since_epoch_TIME' since it was implemented as a wrapper around 'sec_since_epoch' without taking parameter restrictions into account. The function was used to load information about event execution time from mysql.events table. Further more, the function wasn't the inverse function of Time_zone_utc::gmt_sec_to_TIME() which was used by events code to store information about event execution time. sql/event_db_repository.cc: Replaced my_tz_UTC object with my_tz_OFFSET0 object because the first one doesn't supply us with a bijective MYSQL_TIME<->my_time_t translation. Instead the function sec_since_epoch_TIME was used as a reverse function to the method my_tz_UTC::gmt_sec_to_TIME. sql/event_queue.cc: Replaced my_tz_UTC object with my_tz_OFFSET0 object because the first one doesn't supply us with a bijective MYSQL_TIME<->my_time_t translation. Instead the function sec_since_epoch_TIME was used as a reverse function to the method my_tz_UTC::gmt_sec_to_TIME. sql/tztime.cc: * Remove function 'sec_since_epoch_TIME' since it was implemented as a wrapper around 'sec_since_epoch' without taking parameter restrictions into account. The function was used to load information about event execution time from mysql.events table. Further more, the function wasn't the inverse function of Time_zone_utc::gmt_sec_to_TIME() which was used by events code to store information about event execution time. * Added static Time_zone object for UTC+0 time zone. sql/tztime.h: Include extern pointer to static Time_zone object.
2007-07-25 09:43:49 +02:00
my_tz_OFFSET0->gmt_sec_to_TIME(&time, et->execute_at);
BUG#16420: Events: timestamps become UTC BUG#26429: SHOW CREATE EVENT is incorrect for an event that STARTS NOW() BUG#26431: Impossible to re-create an event from backup if its STARTS clause is in the past WL#3698: Events: execution in local time zone The problem was that local times specified by the user in AT, STARTS and ENDS of CREATE EVENT/ALTER EVENT statement were converted to UTC, and the original time zone was forgotten. This way, event scheduler couldn't honor Daylight Saving Time shifts, and times shown to the user were also in UTC. Additionally, CREATE EVENT didn't allow times in the past, thus preventing straightforward event restoration from old backups. This patch reworks event scheduler time computations, performing them in the time zone associated with the event. Also it allows times to be in the past. The patch adds time_zone column to mysql.event table. NOTE: The patch is almost final, but the bug#9953 should be pushed first. client/mysqldump.c: Before every CREATE EVENT, output its time zone. mysql-test/include/wait_condition.inc: Add optional $wait_timeout parameter. mysql-test/lib/init_db.sql: Add time_zone column. mysql-test/r/events.result: Update result. mysql-test/r/events_bugs.result: Update result. mysql-test/r/events_grant.result: Update result. mysql-test/r/events_restart_phase1.result: Update result. mysql-test/r/events_scheduling.result: Update result. mysql-test/r/mysqldump.result: Update result. mysql-test/r/ps.result: Update result. mysql-test/r/system_mysql_db.result: Update result. mysql-test/t/events.test: Remove STARTS from the result, as it depends on current time. mysql-test/t/events_bugs.test: Time in the past is no longer an error. mysql-test/t/events_restart_phase1.test: Fill new column 'time_zone' in mysql.event. mysql-test/t/events_scheduling.test: Cleanup: disable event scheduler. scripts/mysql_create_system_tables.sh: Add new column 'time_zone' to mysql.event. scripts/mysql_fix_privilege_tables.sql: Add new column 'time_zone' to mysql.event. sql/event_data_objects.cc: The essence of the change is the following: - for internal times use my_time_t instead of TIME. Assignment and comparison is done now on plain numbers. - in init_execute_at(), init_starts(), init_ends() convert given time to number of seconds since Epoch (aka Unix time, in UTC). - handle time_zone field loading and storing. - in get_next_time(), Unix time is converted back to event time zone, interval is added, and the result is converted to UTC again. - fix Event_timed::get_create_event() to report STARTS and ENDS. - before executing the event body we set thread time zone to the event time zone. sql/event_data_objects.h: Add time_zone member to Event_basic class. Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_db_repository.cc: Add time_zone column handling. Give a warning and do not create an event if its execution time is in the past, and ON COMPLETION NOT PRESERVE is set, because such an event should be dropped by that time. Also, do not allow ALTER EVENT to set execution time in the past when ON COMPLETION NOT PRESERVE is set. sql/event_db_repository.h: Add enum member for new time zone column. sql/event_queue.cc: Replace handling of broken down times with simple handling of my_time_t. sql/event_queue.h: Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_scheduler.cc: Add TODO comment. sql/events.cc: Send time_zone column for SHOW CREATE EVENT. sql/share/errmsg.txt: Update error message, and add two more errors. sql/sql_show.cc: Add TIME_ZONE column to the output of SHOW EVENTS. mysql-test/r/events_time_zone.result: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/r/events_time_zone.result mysql-test/t/events_time_zone.test: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/t/events_time_zone.test
2007-03-16 15:31:07 +01:00
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
fields[ET_FIELD_EXECUTE_AT]->set_notnull();
fields[ET_FIELD_EXECUTE_AT]->store_time(&time);
}
else
{
DBUG_ASSERT(is_update);
/*
it is normal to be here when the action is update
this is an error if the action is create. something is borked
*/
}
wl#173 - temporal types with sub-second resolution and collateral changes. * introduce my_hrtime_t, my_timediff_t, and conversion macros * inroduce TIME_RESULT, but it can only be returned from Item::cmp_type(), never from Item::result_type() * pack_time/unpack_time function for "packed" representation of MYSQL_TIME in a longlong that can be compared * ADDTIME()/SUBTIME()/+- INTERVAL now work with TIME values * numbers aren't quoted in EXPLAIN EXTENDED * new column I_S.COLUMNS.DATETIME_PRECISION * date/time values are compares to anything as date/time, not as strings or numbers. * old timestamp(X) is no longer supported * MYSQL_TIME to string conversion functions take precision as an argument * unified the warnings from Field_timestamp/datetime/time/date/newdate store methods * Field_timestamp_hires, Field_datetime_hires, Field_time_hires * Field_temporal * Lazy_string class to pass a value (string, number, time) polymorphically down the stack * make_truncated_value_warning and Field::set_datetime_warning use Lazy_string as an argument, removed char*/int/double variants * removed Field::can_be_compared_as_longlong(). Use Field::cmp_type() == INT_RESULT instead * introduced Item::cmp_result() instead of Item::is_datetime() and Item::result_as_longlong() * in many cases date/time types are treated like other types, not as special cases * greatly simplified Arg_comparator (regarding date/time/year code) * SEC_TO_TIME is real function, not integer. * microsecond precision in NOW, CURTIME, etc * Item_temporal. All items derived from it only provide get_date, but no val* methods * replication of NOW(6) * Protocol::store(time) now takes the precision as an argument * @@TIMESTAMP is a double client/mysqlbinlog.cc: remove unneded casts include/my_sys.h: introduce my_hrtime_t, my_timediff_t, and conversion macros include/my_time.h: pack_time/unpack_time, etc. convenience functions to work with MYSQL_TIME::second_part libmysql/libmysql.c: str_to_time() is gone. str_to_datetime() does it now. my_TIME_to_str() takes the precision as an argument mysql-test/include/ps_conv.inc: time is not equal to datetime anymore mysql-test/r/distinct.result: a test for an old MySQL bug mysql-test/r/explain.result: numbers aren't quoted in EXPLAIN EXTENDED mysql-test/r/func_default.result: numbers aren't quoted in EXPLAIN EXTENDED mysql-test/r/func_sapdb.result: when decimals=NOT_FIXED_DEC it means "not fixed" indeed mysql-test/r/func_test.result: numbers aren't quoted in EXPLAIN EXTENDED mysql-test/r/func_time.result: ADDTIME()/SUBTIME()/+- INTERVAL now work with TIME values mysql-test/r/having.result: numbers aren't quoted in EXPLAIN EXTENDED mysql-test/r/information_schema.result: new column I_S.COLUMNS.DATETIME_PRECISION mysql-test/r/join_outer.result: numbers aren't quoted in EXPLAIN EXTENDED mysql-test/r/metadata.result: TIMESTAMP no longer has zerofill flag mysql-test/r/range.result: invalid datetime is not compared with as a string mysql-test/r/select.result: NO_ZERO_IN_DATE, etc only affect storage - according to the manual numbers aren't quoted in EXPLAIN EXTENDED mysql-test/r/subselect.result: numbers aren't quoted in EXPLAIN EXTENDED mysql-test/r/sysdate_is_now.result: when decimals=NOT_FIXED_DEC it means "not fixed" indeed mysql-test/r/type_blob.result: TIMESTAMP(N) is not deprecated mysql-test/r/type_timestamp.result: old TIMESTAMP(X) semantics is not supported anymore mysql-test/r/union.result: numbers aren't quoted in EXPLAIN EXTENDED mysql-test/r/varbinary.result: numbers aren't quoted in EXPLAIN EXTENDED mysql-test/t/distinct.test: test for an old MySQL bug mysql-test/t/func_time.test: +- INTERVAL now works with TIME values mysql-test/t/select.test: typo mysql-test/t/subselect.test: only one error per statement, please mysql-test/t/system_mysql_db_fix40123.test: old timestamp(X) is no longer supported mysql-test/t/system_mysql_db_fix50030.test: old timestamp(X) is no longer supported mysql-test/t/system_mysql_db_fix50117.test: old timestamp(X) is no longer supported mysql-test/t/type_blob.test: old timestamp(X) is no longer supported mysql-test/t/type_timestamp.test: old timestamp(X) is no longer supported mysys/my_getsystime.c: functions to get the time with microsecond precision mysys/my_init.c: move the my_getsystime.c initialization code to my_getsystime.c mysys/my_static.c: no need to make these variables extern mysys/my_static.h: no need to make these variables extern scripts/mysql_system_tables.sql: old timestamp(X) is no longer supported scripts/mysql_system_tables_fix.sql: old timestamp(X) is no longer supported scripts/mysqlhotcopy.sh: old timestamp(X) is no longer supported sql-common/my_time.c: * call str_to_time from str_to_datetime, as appropriate * date/time to string conversions take precision as an argument * number_to_time() * TIME_to_double() * pack_time() and unpack_time() sql/event_data_objects.cc: cast is not needed my_datetime_to_str() takes precision as an argument sql/event_db_repository.cc: avoid dangerous downcast (because the pointer is not always Field_timestamp, see events_1.test) sql/event_queue.cc: avoid silly double-work for cond_wait (having an endpoint of wait, subtract the current time to get the timeout, and use set_timespec() macro to fill in struct timespec, by adding the current time to the timeout) sql/field.cc: * remove virtual Field::get_time(), everyone should use only Field::get_date() * remove lots of #ifdef WORDS_BIGENDIAN * unified the warnings from Field_timestamp/datetime/time/date/newdate store methods * Field_timestamp_hires, Field_datetime_hires, Field_time_hires * Field_temporal * make_truncated_value_warning and Field::set_datetime_warning use Lazy_string as an argument, removed char*/int/double variants sql/field.h: * remove virtual Field::get_time(), everyone should use only Field::get_date() * remove lots of #ifdef WORDS_BIGENDIAN * unified the warnings from Field_timestamp/datetime/time/date/newdate store methods * Field_timestamp_hires, Field_datetime_hires, Field_time_hires * Field_temporal * make_truncated_value_warning and Field::set_datetime_warning use Lazy_string as an argument, removed char*/int/double variants * removed Field::can_be_compared_as_longlong(). Use Field::cmp_type() == INT_RESULT instead sql/filesort.cc: TIME_RESULT, cmp_time() sql/item.cc: * numbers aren't quoted in EXPLAIN EXTENDED * Item::cmp_result() instead of Item::is_datetime() and Item::result_as_longlong() * virtual Item::get_time() is gone * Item_param::field_type() is set correctly * Item_datetime, for a datetime constant * time to anything is compared as a time * Item_cache::print() prints the value is available * bug fixed in Item_cache_int::val_str() sql/item.h: * Item::print_value(), to be used from Item_xxx::print() when needed * Item::cmp_result() instead of Item::is_datetime() and Item::result_as_longlong() * virtual Item::get_time() is gone * Item_datetime, for a datetime constant * better default for cast_to_int_type() * Item_cache objects now *always* have the field_type() set sql/item_cmpfunc.cc: * get_year_value, get_time_value are gone. get_datetime_value does it all * get_value_a_func, get_value_b_func are gone * can_compare_as_dates() is gone too, TIME_RESULT is used instead * cmp_type() instead or result_type() when doing a comparison * compare_datetime and compate_e_datetime in the comparator_matrix, is_nulls_eq is gone * Item::cmp_result() instead of Item::is_datetime() and Item::result_as_longlong() sql/item_cmpfunc.h: greatly simplified Arg_comparator sql/item_create.cc: * fix a bug in error messages in CAST sql/item_func.cc: Item::cmp_result() instead of Item::is_datetime() and Item::result_as_longlong() mention all possibitiles in switch over Item_result values, or use default: sql/item_row.h: overwrite the default cmp_type() for Item_row, as no MYSQL_TYPE_xxx value corresponds to ROW_RESULT sql/item_timefunc.cc: rewrite make_datetime to support precision argument SEC_TO_TIME is real function, not integer. many functions that returned temporal values had duplicate code in val_* methods, some of them did not have get_date() which resulted in unnecessary date->str->date conversions. Now they all are derived from Item_temporal_func and *only* provide get_date, not val* methods. many fixes to set decimals (datetime precision) correctly. sql/item_timefunc.h: SEC_TO_TIME is real function, not integer. many functions that returned temporal values had duplicate code in val_* methods, some of them did not have get_date() which resulted in unnecessary date->str->date conversions. Now they all are derived from Item_temporal_func and *only* provide get_date, not val* methods. many fixes to set decimals (datetime precision) correctly. sql/log_event.cc: replication of NOW(6) sql/log_event.h: replication of NOW(6) sql/mysql_priv.h: Lazy_string class to pass a value (string, number, time) polymorphically down the stack. make_truncated_value_warning() that uses it. sql/mysqld.cc: datetime in Arg_comparator::comparator_matrix sql/opt_range.cc: cleanup: don't disable warnings before calling save_in_field_no_warnings() sql/protocol.cc: Protocol::store(time) now takes the precision as an argument sql/protocol.h: Protocol::store(time) now takes the precision as an argument sql/rpl_rli.cc: small cleanup sql/set_var.cc: SET TIMESTAMP=double sql/set_var.h: @@TIMESTAMP is a double sql/share/errmsg.txt: precision and scale are unsigned sql/slave.cc: replication of NOW(6) sql/sp_head.cc: cleanup sql/sql_class.cc: support for NOW(6) sql/sql_class.h: support for NOW(6) sql/sql_insert.cc: support for NOW(6) sql/sql_select.cc: use item->cmp_type(). move a comment where it belongs sql/sql_show.cc: new column I_S.COLUMNS.DATETIME_PRECISION sql/sql_yacc.yy: TIME(X), DATETIME(X), cast, NOW(X), CURTIME(X), etc sql/time.cc: fix date_add_interval() to support MYSQL_TIMESTAMP_TIME argument storage/myisam/ha_myisam.cc: TIMESTAMP no longer carries ZEROFIELD flag, still we keep MYI file compatible. strings/my_vsnprintf.c: warnings tests/mysql_client_test.c: old timestamp(X) does not work anymore datetime is no longer equal to time
2011-03-01 13:24:36 +01:00
rs|= fields[ET_FIELD_MODIFIED]->set_time();
if (et->comment.str)
{
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
if (fields[f_num= ET_FIELD_COMMENT]->
store(et->comment.str, et->comment.length, scs))
goto err_truncate;
}
Patch for the following bugs: - BUG#11986: Stored routines and triggers can fail if the code has a non-ascii symbol - BUG#16291: mysqldump corrupts string-constants with non-ascii-chars - BUG#19443: INFORMATION_SCHEMA does not support charsets properly - BUG#21249: Character set of SP-var can be ignored - BUG#25212: Character set of string constant is ignored (stored routines) - BUG#25221: Character set of string constant is ignored (triggers) There were a few general problems that caused these bugs: 1. Character set information of the original (definition) query for views, triggers, stored routines and events was lost. 2. mysqldump output query in client character set, which can be inappropriate to encode definition-query. 3. INFORMATION_SCHEMA used strings with mixed encodings to display object definition; 1. No query-definition-character set. In order to compile query into execution code, some extra data (such as environment variables or the database character set) is used. The problem here was that this context was not preserved. So, on the next load it can differ from the original one, thus the result will be different. The context contains the following data: - client character set; - connection collation (character set and collation); - collation of the owner database; The fix is to store this context and use it each time we parse (compile) and execute the object (stored routine, trigger, ...). 2. Wrong mysqldump-output. The original query can contain several encodings (by means of character set introducers). The problem here was that we tried to convert original query to the mysqldump-client character set. Moreover, we stored queries in different character sets for different objects (views, for one, used UTF8, triggers used original character set). The solution is - to store definition queries in the original character set; - to change SHOW CREATE statement to output definition query in the binary character set (i.e. without any conversion); - introduce SHOW CREATE TRIGGER statement; - to dump special statements to switch the context to the original one before dumping and restore it afterwards. Note, in order to preserve the database collation at the creation time, additional ALTER DATABASE might be used (to temporary switch the database collation back to the original value). In this case, ALTER DATABASE privilege will be required. This is a backward-incompatible change. 3. INFORMATION_SCHEMA showed non-UTF8 strings The fix is to generate UTF8-query during the parsing, store it in the object and show it in the INFORMATION_SCHEMA. Basically, the idea is to create a copy of the original query convert it to UTF8. Character set introducers are removed and all text literals are converted to UTF8. This UTF8 query is intended to provide user-readable output. It must not be used to recreate the object. Specialized SHOW CREATE statements should be used for this. The reason for this limitation is the following: the original query can contain symbols from several character sets (by means of character set introducers). Example: - original query: CREATE VIEW v1 AS SELECT _cp1251 'Hello' AS c1; - UTF8 query (for INFORMATION_SCHEMA): CREATE VIEW v1 AS SELECT 'Hello' AS c1; client/mysqldump.c: Set original character set and collation before dumping definition query. include/my_sys.h: Move out-parameter to the end of list. mysql-test/lib/mtr_report.pl: Ignore server-warnings during the test case. mysql-test/r/create.result: Update result file. mysql-test/r/ctype_cp932_binlog_stm.result: Update result file. mysql-test/r/events.result: Update result file. mysql-test/r/events_bugs.result: Update result file. mysql-test/r/events_grant.result: Update result file. mysql-test/r/func_in.result: Update result file. mysql-test/r/gis.result: Update result file. mysql-test/r/grant.result: Update result file. mysql-test/r/information_schema.result: Update result file. mysql-test/r/information_schema_db.result: Update result file. mysql-test/r/lowercase_view.result: Update result file. mysql-test/r/mysqldump.result: Update result file. mysql-test/r/ndb_sp.result: Update result file. mysql-test/r/ps.result: Update result file. mysql-test/r/rpl_replicate_do.result: Update result file. mysql-test/r/rpl_sp.result: Update result file. mysql-test/r/rpl_trigger.result: Update result file. mysql-test/r/rpl_view.result: Update result file. mysql-test/r/show_check.result: Update result file. mysql-test/r/skip_grants.result: Update result file. mysql-test/r/sp-destruct.result: Update result file. mysql-test/r/sp-error.result: Update result file. mysql-test/r/sp-security.result: Update result file. mysql-test/r/sp.result: Update result file. mysql-test/r/sql_mode.result: Update result file. mysql-test/r/system_mysql_db.result: Update result file. mysql-test/r/temp_table.result: Update result file. mysql-test/r/trigger-compat.result: Update result file. mysql-test/r/trigger-grant.result: Update result file. mysql-test/r/trigger.result: Update result file. mysql-test/r/view.result: Update result file. mysql-test/r/view_grant.result: Update result file. mysql-test/t/events.test: Update test case (new columns added). mysql-test/t/information_schema.test: Update test case (new columns added). mysql-test/t/show_check.test: Test case for SHOW CREATE TRIGGER in prepared statements and stored routines. mysql-test/t/sp-destruct.test: Update test case (new columns added). mysql-test/t/sp.test: Update test case (new columns added). mysql-test/t/view.test: Update test. mysys/charset.c: Move out-parameter to the end of list. scripts/mysql_system_tables.sql: Add new columns to mysql.proc and mysql.event. scripts/mysql_system_tables_fix.sql: Add new columns to mysql.proc and mysql.event. sql/event_data_objects.cc: Support new attributes for events. sql/event_data_objects.h: Support new attributes for events. sql/event_db_repository.cc: Support new attributes for events. sql/event_db_repository.h: Support new attributes for events. sql/events.cc: Add new columns to SHOW CREATE event resultset. sql/mysql_priv.h: 1. Introduce Object_creation_ctx; 2. Introduce SHOW CREATE TRIGGER; 3. Introduce auxilary functions. sql/sp.cc: Add support for new store routines attributes. sql/sp_head.cc: Add support for new store routines attributes. sql/sp_head.h: Add support for new store routines attributes. sql/sql_lex.cc: Generate UTF8-body on parsing/lexing. sql/sql_lex.h: 1. Generate UTF8-body on parsing/lexing. 2. Introduce SHOW CREATE TRIGGER. sql/sql_parse.cc: Introduce SHOW CREATE TRIGGER. sql/sql_partition.cc: Update parse_sql(). sql/sql_prepare.cc: Update parse_sql(). sql/sql_show.cc: Support new attributes for views sql/sql_trigger.cc: Support new attributes for views sql/sql_trigger.h: Support new attributes for views sql/sql_view.cc: Support new attributes for views sql/sql_yacc.yy: 1. Add SHOW CREATE TRIGGER statement. 2. Generate UTF8-body for views, stored routines, triggers and events. sql/table.cc: Introduce Object_creation_ctx. sql/table.h: Introduce Object_creation_ctx. sql/share/errmsg.txt: Add new errors. mysql-test/include/ddl_i18n.check_events.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_sp.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_triggers.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_views.inc: Aux file for test suite. mysql-test/include/have_cp1251.inc: Aux file for test suite. mysql-test/include/have_cp866.inc: Aux file for test suite. mysql-test/include/have_koi8r.inc: Aux file for test suite. mysql-test/include/have_utf8.inc: Aux file for test suite. mysql-test/r/ddl_i18n_koi8r.result: Result file. mysql-test/r/ddl_i18n_utf8.result: Result file. mysql-test/r/have_cp1251.require: Aux file for test suite. mysql-test/r/have_cp866.require: Aux file for test suite. mysql-test/r/have_koi8r.require: Aux file for test suite. mysql-test/r/have_utf8.require: Aux file for test suite. mysql-test/t/ddl_i18n_koi8r.test: Complete koi8r test case for the CS patch. mysql-test/t/ddl_i18n_utf8.test: Complete utf8 test case for the CS patch.
2007-06-28 19:34:54 +02:00
fields[ET_FIELD_CHARACTER_SET_CLIENT]->set_notnull();
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
rs|= fields[ET_FIELD_CHARACTER_SET_CLIENT]->store(
Patch for the following bugs: - BUG#11986: Stored routines and triggers can fail if the code has a non-ascii symbol - BUG#16291: mysqldump corrupts string-constants with non-ascii-chars - BUG#19443: INFORMATION_SCHEMA does not support charsets properly - BUG#21249: Character set of SP-var can be ignored - BUG#25212: Character set of string constant is ignored (stored routines) - BUG#25221: Character set of string constant is ignored (triggers) There were a few general problems that caused these bugs: 1. Character set information of the original (definition) query for views, triggers, stored routines and events was lost. 2. mysqldump output query in client character set, which can be inappropriate to encode definition-query. 3. INFORMATION_SCHEMA used strings with mixed encodings to display object definition; 1. No query-definition-character set. In order to compile query into execution code, some extra data (such as environment variables or the database character set) is used. The problem here was that this context was not preserved. So, on the next load it can differ from the original one, thus the result will be different. The context contains the following data: - client character set; - connection collation (character set and collation); - collation of the owner database; The fix is to store this context and use it each time we parse (compile) and execute the object (stored routine, trigger, ...). 2. Wrong mysqldump-output. The original query can contain several encodings (by means of character set introducers). The problem here was that we tried to convert original query to the mysqldump-client character set. Moreover, we stored queries in different character sets for different objects (views, for one, used UTF8, triggers used original character set). The solution is - to store definition queries in the original character set; - to change SHOW CREATE statement to output definition query in the binary character set (i.e. without any conversion); - introduce SHOW CREATE TRIGGER statement; - to dump special statements to switch the context to the original one before dumping and restore it afterwards. Note, in order to preserve the database collation at the creation time, additional ALTER DATABASE might be used (to temporary switch the database collation back to the original value). In this case, ALTER DATABASE privilege will be required. This is a backward-incompatible change. 3. INFORMATION_SCHEMA showed non-UTF8 strings The fix is to generate UTF8-query during the parsing, store it in the object and show it in the INFORMATION_SCHEMA. Basically, the idea is to create a copy of the original query convert it to UTF8. Character set introducers are removed and all text literals are converted to UTF8. This UTF8 query is intended to provide user-readable output. It must not be used to recreate the object. Specialized SHOW CREATE statements should be used for this. The reason for this limitation is the following: the original query can contain symbols from several character sets (by means of character set introducers). Example: - original query: CREATE VIEW v1 AS SELECT _cp1251 'Hello' AS c1; - UTF8 query (for INFORMATION_SCHEMA): CREATE VIEW v1 AS SELECT 'Hello' AS c1; client/mysqldump.c: Set original character set and collation before dumping definition query. include/my_sys.h: Move out-parameter to the end of list. mysql-test/lib/mtr_report.pl: Ignore server-warnings during the test case. mysql-test/r/create.result: Update result file. mysql-test/r/ctype_cp932_binlog_stm.result: Update result file. mysql-test/r/events.result: Update result file. mysql-test/r/events_bugs.result: Update result file. mysql-test/r/events_grant.result: Update result file. mysql-test/r/func_in.result: Update result file. mysql-test/r/gis.result: Update result file. mysql-test/r/grant.result: Update result file. mysql-test/r/information_schema.result: Update result file. mysql-test/r/information_schema_db.result: Update result file. mysql-test/r/lowercase_view.result: Update result file. mysql-test/r/mysqldump.result: Update result file. mysql-test/r/ndb_sp.result: Update result file. mysql-test/r/ps.result: Update result file. mysql-test/r/rpl_replicate_do.result: Update result file. mysql-test/r/rpl_sp.result: Update result file. mysql-test/r/rpl_trigger.result: Update result file. mysql-test/r/rpl_view.result: Update result file. mysql-test/r/show_check.result: Update result file. mysql-test/r/skip_grants.result: Update result file. mysql-test/r/sp-destruct.result: Update result file. mysql-test/r/sp-error.result: Update result file. mysql-test/r/sp-security.result: Update result file. mysql-test/r/sp.result: Update result file. mysql-test/r/sql_mode.result: Update result file. mysql-test/r/system_mysql_db.result: Update result file. mysql-test/r/temp_table.result: Update result file. mysql-test/r/trigger-compat.result: Update result file. mysql-test/r/trigger-grant.result: Update result file. mysql-test/r/trigger.result: Update result file. mysql-test/r/view.result: Update result file. mysql-test/r/view_grant.result: Update result file. mysql-test/t/events.test: Update test case (new columns added). mysql-test/t/information_schema.test: Update test case (new columns added). mysql-test/t/show_check.test: Test case for SHOW CREATE TRIGGER in prepared statements and stored routines. mysql-test/t/sp-destruct.test: Update test case (new columns added). mysql-test/t/sp.test: Update test case (new columns added). mysql-test/t/view.test: Update test. mysys/charset.c: Move out-parameter to the end of list. scripts/mysql_system_tables.sql: Add new columns to mysql.proc and mysql.event. scripts/mysql_system_tables_fix.sql: Add new columns to mysql.proc and mysql.event. sql/event_data_objects.cc: Support new attributes for events. sql/event_data_objects.h: Support new attributes for events. sql/event_db_repository.cc: Support new attributes for events. sql/event_db_repository.h: Support new attributes for events. sql/events.cc: Add new columns to SHOW CREATE event resultset. sql/mysql_priv.h: 1. Introduce Object_creation_ctx; 2. Introduce SHOW CREATE TRIGGER; 3. Introduce auxilary functions. sql/sp.cc: Add support for new store routines attributes. sql/sp_head.cc: Add support for new store routines attributes. sql/sp_head.h: Add support for new store routines attributes. sql/sql_lex.cc: Generate UTF8-body on parsing/lexing. sql/sql_lex.h: 1. Generate UTF8-body on parsing/lexing. 2. Introduce SHOW CREATE TRIGGER. sql/sql_parse.cc: Introduce SHOW CREATE TRIGGER. sql/sql_partition.cc: Update parse_sql(). sql/sql_prepare.cc: Update parse_sql(). sql/sql_show.cc: Support new attributes for views sql/sql_trigger.cc: Support new attributes for views sql/sql_trigger.h: Support new attributes for views sql/sql_view.cc: Support new attributes for views sql/sql_yacc.yy: 1. Add SHOW CREATE TRIGGER statement. 2. Generate UTF8-body for views, stored routines, triggers and events. sql/table.cc: Introduce Object_creation_ctx. sql/table.h: Introduce Object_creation_ctx. sql/share/errmsg.txt: Add new errors. mysql-test/include/ddl_i18n.check_events.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_sp.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_triggers.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_views.inc: Aux file for test suite. mysql-test/include/have_cp1251.inc: Aux file for test suite. mysql-test/include/have_cp866.inc: Aux file for test suite. mysql-test/include/have_koi8r.inc: Aux file for test suite. mysql-test/include/have_utf8.inc: Aux file for test suite. mysql-test/r/ddl_i18n_koi8r.result: Result file. mysql-test/r/ddl_i18n_utf8.result: Result file. mysql-test/r/have_cp1251.require: Aux file for test suite. mysql-test/r/have_cp866.require: Aux file for test suite. mysql-test/r/have_koi8r.require: Aux file for test suite. mysql-test/r/have_utf8.require: Aux file for test suite. mysql-test/t/ddl_i18n_koi8r.test: Complete koi8r test case for the CS patch. mysql-test/t/ddl_i18n_utf8.test: Complete utf8 test case for the CS patch.
2007-06-28 19:34:54 +02:00
thd->variables.character_set_client->csname,
strlen(thd->variables.character_set_client->csname),
system_charset_info);
fields[ET_FIELD_COLLATION_CONNECTION]->set_notnull();
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
rs|= fields[ET_FIELD_COLLATION_CONNECTION]->store(
Patch for the following bugs: - BUG#11986: Stored routines and triggers can fail if the code has a non-ascii symbol - BUG#16291: mysqldump corrupts string-constants with non-ascii-chars - BUG#19443: INFORMATION_SCHEMA does not support charsets properly - BUG#21249: Character set of SP-var can be ignored - BUG#25212: Character set of string constant is ignored (stored routines) - BUG#25221: Character set of string constant is ignored (triggers) There were a few general problems that caused these bugs: 1. Character set information of the original (definition) query for views, triggers, stored routines and events was lost. 2. mysqldump output query in client character set, which can be inappropriate to encode definition-query. 3. INFORMATION_SCHEMA used strings with mixed encodings to display object definition; 1. No query-definition-character set. In order to compile query into execution code, some extra data (such as environment variables or the database character set) is used. The problem here was that this context was not preserved. So, on the next load it can differ from the original one, thus the result will be different. The context contains the following data: - client character set; - connection collation (character set and collation); - collation of the owner database; The fix is to store this context and use it each time we parse (compile) and execute the object (stored routine, trigger, ...). 2. Wrong mysqldump-output. The original query can contain several encodings (by means of character set introducers). The problem here was that we tried to convert original query to the mysqldump-client character set. Moreover, we stored queries in different character sets for different objects (views, for one, used UTF8, triggers used original character set). The solution is - to store definition queries in the original character set; - to change SHOW CREATE statement to output definition query in the binary character set (i.e. without any conversion); - introduce SHOW CREATE TRIGGER statement; - to dump special statements to switch the context to the original one before dumping and restore it afterwards. Note, in order to preserve the database collation at the creation time, additional ALTER DATABASE might be used (to temporary switch the database collation back to the original value). In this case, ALTER DATABASE privilege will be required. This is a backward-incompatible change. 3. INFORMATION_SCHEMA showed non-UTF8 strings The fix is to generate UTF8-query during the parsing, store it in the object and show it in the INFORMATION_SCHEMA. Basically, the idea is to create a copy of the original query convert it to UTF8. Character set introducers are removed and all text literals are converted to UTF8. This UTF8 query is intended to provide user-readable output. It must not be used to recreate the object. Specialized SHOW CREATE statements should be used for this. The reason for this limitation is the following: the original query can contain symbols from several character sets (by means of character set introducers). Example: - original query: CREATE VIEW v1 AS SELECT _cp1251 'Hello' AS c1; - UTF8 query (for INFORMATION_SCHEMA): CREATE VIEW v1 AS SELECT 'Hello' AS c1; client/mysqldump.c: Set original character set and collation before dumping definition query. include/my_sys.h: Move out-parameter to the end of list. mysql-test/lib/mtr_report.pl: Ignore server-warnings during the test case. mysql-test/r/create.result: Update result file. mysql-test/r/ctype_cp932_binlog_stm.result: Update result file. mysql-test/r/events.result: Update result file. mysql-test/r/events_bugs.result: Update result file. mysql-test/r/events_grant.result: Update result file. mysql-test/r/func_in.result: Update result file. mysql-test/r/gis.result: Update result file. mysql-test/r/grant.result: Update result file. mysql-test/r/information_schema.result: Update result file. mysql-test/r/information_schema_db.result: Update result file. mysql-test/r/lowercase_view.result: Update result file. mysql-test/r/mysqldump.result: Update result file. mysql-test/r/ndb_sp.result: Update result file. mysql-test/r/ps.result: Update result file. mysql-test/r/rpl_replicate_do.result: Update result file. mysql-test/r/rpl_sp.result: Update result file. mysql-test/r/rpl_trigger.result: Update result file. mysql-test/r/rpl_view.result: Update result file. mysql-test/r/show_check.result: Update result file. mysql-test/r/skip_grants.result: Update result file. mysql-test/r/sp-destruct.result: Update result file. mysql-test/r/sp-error.result: Update result file. mysql-test/r/sp-security.result: Update result file. mysql-test/r/sp.result: Update result file. mysql-test/r/sql_mode.result: Update result file. mysql-test/r/system_mysql_db.result: Update result file. mysql-test/r/temp_table.result: Update result file. mysql-test/r/trigger-compat.result: Update result file. mysql-test/r/trigger-grant.result: Update result file. mysql-test/r/trigger.result: Update result file. mysql-test/r/view.result: Update result file. mysql-test/r/view_grant.result: Update result file. mysql-test/t/events.test: Update test case (new columns added). mysql-test/t/information_schema.test: Update test case (new columns added). mysql-test/t/show_check.test: Test case for SHOW CREATE TRIGGER in prepared statements and stored routines. mysql-test/t/sp-destruct.test: Update test case (new columns added). mysql-test/t/sp.test: Update test case (new columns added). mysql-test/t/view.test: Update test. mysys/charset.c: Move out-parameter to the end of list. scripts/mysql_system_tables.sql: Add new columns to mysql.proc and mysql.event. scripts/mysql_system_tables_fix.sql: Add new columns to mysql.proc and mysql.event. sql/event_data_objects.cc: Support new attributes for events. sql/event_data_objects.h: Support new attributes for events. sql/event_db_repository.cc: Support new attributes for events. sql/event_db_repository.h: Support new attributes for events. sql/events.cc: Add new columns to SHOW CREATE event resultset. sql/mysql_priv.h: 1. Introduce Object_creation_ctx; 2. Introduce SHOW CREATE TRIGGER; 3. Introduce auxilary functions. sql/sp.cc: Add support for new store routines attributes. sql/sp_head.cc: Add support for new store routines attributes. sql/sp_head.h: Add support for new store routines attributes. sql/sql_lex.cc: Generate UTF8-body on parsing/lexing. sql/sql_lex.h: 1. Generate UTF8-body on parsing/lexing. 2. Introduce SHOW CREATE TRIGGER. sql/sql_parse.cc: Introduce SHOW CREATE TRIGGER. sql/sql_partition.cc: Update parse_sql(). sql/sql_prepare.cc: Update parse_sql(). sql/sql_show.cc: Support new attributes for views sql/sql_trigger.cc: Support new attributes for views sql/sql_trigger.h: Support new attributes for views sql/sql_view.cc: Support new attributes for views sql/sql_yacc.yy: 1. Add SHOW CREATE TRIGGER statement. 2. Generate UTF8-body for views, stored routines, triggers and events. sql/table.cc: Introduce Object_creation_ctx. sql/table.h: Introduce Object_creation_ctx. sql/share/errmsg.txt: Add new errors. mysql-test/include/ddl_i18n.check_events.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_sp.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_triggers.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_views.inc: Aux file for test suite. mysql-test/include/have_cp1251.inc: Aux file for test suite. mysql-test/include/have_cp866.inc: Aux file for test suite. mysql-test/include/have_koi8r.inc: Aux file for test suite. mysql-test/include/have_utf8.inc: Aux file for test suite. mysql-test/r/ddl_i18n_koi8r.result: Result file. mysql-test/r/ddl_i18n_utf8.result: Result file. mysql-test/r/have_cp1251.require: Aux file for test suite. mysql-test/r/have_cp866.require: Aux file for test suite. mysql-test/r/have_koi8r.require: Aux file for test suite. mysql-test/r/have_utf8.require: Aux file for test suite. mysql-test/t/ddl_i18n_koi8r.test: Complete koi8r test case for the CS patch. mysql-test/t/ddl_i18n_utf8.test: Complete utf8 test case for the CS patch.
2007-06-28 19:34:54 +02:00
thd->variables.collation_connection->name,
strlen(thd->variables.collation_connection->name),
system_charset_info);
{
CHARSET_INFO *db_cl= get_default_db_collation(thd, et->dbname.str);
fields[ET_FIELD_DB_COLLATION]->set_notnull();
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
rs|= fields[ET_FIELD_DB_COLLATION]->store(db_cl->name,
strlen(db_cl->name),
system_charset_info);
Patch for the following bugs: - BUG#11986: Stored routines and triggers can fail if the code has a non-ascii symbol - BUG#16291: mysqldump corrupts string-constants with non-ascii-chars - BUG#19443: INFORMATION_SCHEMA does not support charsets properly - BUG#21249: Character set of SP-var can be ignored - BUG#25212: Character set of string constant is ignored (stored routines) - BUG#25221: Character set of string constant is ignored (triggers) There were a few general problems that caused these bugs: 1. Character set information of the original (definition) query for views, triggers, stored routines and events was lost. 2. mysqldump output query in client character set, which can be inappropriate to encode definition-query. 3. INFORMATION_SCHEMA used strings with mixed encodings to display object definition; 1. No query-definition-character set. In order to compile query into execution code, some extra data (such as environment variables or the database character set) is used. The problem here was that this context was not preserved. So, on the next load it can differ from the original one, thus the result will be different. The context contains the following data: - client character set; - connection collation (character set and collation); - collation of the owner database; The fix is to store this context and use it each time we parse (compile) and execute the object (stored routine, trigger, ...). 2. Wrong mysqldump-output. The original query can contain several encodings (by means of character set introducers). The problem here was that we tried to convert original query to the mysqldump-client character set. Moreover, we stored queries in different character sets for different objects (views, for one, used UTF8, triggers used original character set). The solution is - to store definition queries in the original character set; - to change SHOW CREATE statement to output definition query in the binary character set (i.e. without any conversion); - introduce SHOW CREATE TRIGGER statement; - to dump special statements to switch the context to the original one before dumping and restore it afterwards. Note, in order to preserve the database collation at the creation time, additional ALTER DATABASE might be used (to temporary switch the database collation back to the original value). In this case, ALTER DATABASE privilege will be required. This is a backward-incompatible change. 3. INFORMATION_SCHEMA showed non-UTF8 strings The fix is to generate UTF8-query during the parsing, store it in the object and show it in the INFORMATION_SCHEMA. Basically, the idea is to create a copy of the original query convert it to UTF8. Character set introducers are removed and all text literals are converted to UTF8. This UTF8 query is intended to provide user-readable output. It must not be used to recreate the object. Specialized SHOW CREATE statements should be used for this. The reason for this limitation is the following: the original query can contain symbols from several character sets (by means of character set introducers). Example: - original query: CREATE VIEW v1 AS SELECT _cp1251 'Hello' AS c1; - UTF8 query (for INFORMATION_SCHEMA): CREATE VIEW v1 AS SELECT 'Hello' AS c1; client/mysqldump.c: Set original character set and collation before dumping definition query. include/my_sys.h: Move out-parameter to the end of list. mysql-test/lib/mtr_report.pl: Ignore server-warnings during the test case. mysql-test/r/create.result: Update result file. mysql-test/r/ctype_cp932_binlog_stm.result: Update result file. mysql-test/r/events.result: Update result file. mysql-test/r/events_bugs.result: Update result file. mysql-test/r/events_grant.result: Update result file. mysql-test/r/func_in.result: Update result file. mysql-test/r/gis.result: Update result file. mysql-test/r/grant.result: Update result file. mysql-test/r/information_schema.result: Update result file. mysql-test/r/information_schema_db.result: Update result file. mysql-test/r/lowercase_view.result: Update result file. mysql-test/r/mysqldump.result: Update result file. mysql-test/r/ndb_sp.result: Update result file. mysql-test/r/ps.result: Update result file. mysql-test/r/rpl_replicate_do.result: Update result file. mysql-test/r/rpl_sp.result: Update result file. mysql-test/r/rpl_trigger.result: Update result file. mysql-test/r/rpl_view.result: Update result file. mysql-test/r/show_check.result: Update result file. mysql-test/r/skip_grants.result: Update result file. mysql-test/r/sp-destruct.result: Update result file. mysql-test/r/sp-error.result: Update result file. mysql-test/r/sp-security.result: Update result file. mysql-test/r/sp.result: Update result file. mysql-test/r/sql_mode.result: Update result file. mysql-test/r/system_mysql_db.result: Update result file. mysql-test/r/temp_table.result: Update result file. mysql-test/r/trigger-compat.result: Update result file. mysql-test/r/trigger-grant.result: Update result file. mysql-test/r/trigger.result: Update result file. mysql-test/r/view.result: Update result file. mysql-test/r/view_grant.result: Update result file. mysql-test/t/events.test: Update test case (new columns added). mysql-test/t/information_schema.test: Update test case (new columns added). mysql-test/t/show_check.test: Test case for SHOW CREATE TRIGGER in prepared statements and stored routines. mysql-test/t/sp-destruct.test: Update test case (new columns added). mysql-test/t/sp.test: Update test case (new columns added). mysql-test/t/view.test: Update test. mysys/charset.c: Move out-parameter to the end of list. scripts/mysql_system_tables.sql: Add new columns to mysql.proc and mysql.event. scripts/mysql_system_tables_fix.sql: Add new columns to mysql.proc and mysql.event. sql/event_data_objects.cc: Support new attributes for events. sql/event_data_objects.h: Support new attributes for events. sql/event_db_repository.cc: Support new attributes for events. sql/event_db_repository.h: Support new attributes for events. sql/events.cc: Add new columns to SHOW CREATE event resultset. sql/mysql_priv.h: 1. Introduce Object_creation_ctx; 2. Introduce SHOW CREATE TRIGGER; 3. Introduce auxilary functions. sql/sp.cc: Add support for new store routines attributes. sql/sp_head.cc: Add support for new store routines attributes. sql/sp_head.h: Add support for new store routines attributes. sql/sql_lex.cc: Generate UTF8-body on parsing/lexing. sql/sql_lex.h: 1. Generate UTF8-body on parsing/lexing. 2. Introduce SHOW CREATE TRIGGER. sql/sql_parse.cc: Introduce SHOW CREATE TRIGGER. sql/sql_partition.cc: Update parse_sql(). sql/sql_prepare.cc: Update parse_sql(). sql/sql_show.cc: Support new attributes for views sql/sql_trigger.cc: Support new attributes for views sql/sql_trigger.h: Support new attributes for views sql/sql_view.cc: Support new attributes for views sql/sql_yacc.yy: 1. Add SHOW CREATE TRIGGER statement. 2. Generate UTF8-body for views, stored routines, triggers and events. sql/table.cc: Introduce Object_creation_ctx. sql/table.h: Introduce Object_creation_ctx. sql/share/errmsg.txt: Add new errors. mysql-test/include/ddl_i18n.check_events.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_sp.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_triggers.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_views.inc: Aux file for test suite. mysql-test/include/have_cp1251.inc: Aux file for test suite. mysql-test/include/have_cp866.inc: Aux file for test suite. mysql-test/include/have_koi8r.inc: Aux file for test suite. mysql-test/include/have_utf8.inc: Aux file for test suite. mysql-test/r/ddl_i18n_koi8r.result: Result file. mysql-test/r/ddl_i18n_utf8.result: Result file. mysql-test/r/have_cp1251.require: Aux file for test suite. mysql-test/r/have_cp866.require: Aux file for test suite. mysql-test/r/have_koi8r.require: Aux file for test suite. mysql-test/r/have_utf8.require: Aux file for test suite. mysql-test/t/ddl_i18n_koi8r.test: Complete koi8r test case for the CS patch. mysql-test/t/ddl_i18n_utf8.test: Complete utf8 test case for the CS patch.
2007-06-28 19:34:54 +02:00
}
if (et->body_changed)
{
fields[ET_FIELD_BODY_UTF8]->set_notnull();
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
rs|= fields[ET_FIELD_BODY_UTF8]->store(sp->m_body_utf8.str,
sp->m_body_utf8.length,
system_charset_info);
}
if (rs)
{
my_error(ER_EVENT_STORE_FAILED, MYF(0), fields[f_num]->field_name, rs);
DBUG_RETURN(TRUE);
Patch for the following bugs: - BUG#11986: Stored routines and triggers can fail if the code has a non-ascii symbol - BUG#16291: mysqldump corrupts string-constants with non-ascii-chars - BUG#19443: INFORMATION_SCHEMA does not support charsets properly - BUG#21249: Character set of SP-var can be ignored - BUG#25212: Character set of string constant is ignored (stored routines) - BUG#25221: Character set of string constant is ignored (triggers) There were a few general problems that caused these bugs: 1. Character set information of the original (definition) query for views, triggers, stored routines and events was lost. 2. mysqldump output query in client character set, which can be inappropriate to encode definition-query. 3. INFORMATION_SCHEMA used strings with mixed encodings to display object definition; 1. No query-definition-character set. In order to compile query into execution code, some extra data (such as environment variables or the database character set) is used. The problem here was that this context was not preserved. So, on the next load it can differ from the original one, thus the result will be different. The context contains the following data: - client character set; - connection collation (character set and collation); - collation of the owner database; The fix is to store this context and use it each time we parse (compile) and execute the object (stored routine, trigger, ...). 2. Wrong mysqldump-output. The original query can contain several encodings (by means of character set introducers). The problem here was that we tried to convert original query to the mysqldump-client character set. Moreover, we stored queries in different character sets for different objects (views, for one, used UTF8, triggers used original character set). The solution is - to store definition queries in the original character set; - to change SHOW CREATE statement to output definition query in the binary character set (i.e. without any conversion); - introduce SHOW CREATE TRIGGER statement; - to dump special statements to switch the context to the original one before dumping and restore it afterwards. Note, in order to preserve the database collation at the creation time, additional ALTER DATABASE might be used (to temporary switch the database collation back to the original value). In this case, ALTER DATABASE privilege will be required. This is a backward-incompatible change. 3. INFORMATION_SCHEMA showed non-UTF8 strings The fix is to generate UTF8-query during the parsing, store it in the object and show it in the INFORMATION_SCHEMA. Basically, the idea is to create a copy of the original query convert it to UTF8. Character set introducers are removed and all text literals are converted to UTF8. This UTF8 query is intended to provide user-readable output. It must not be used to recreate the object. Specialized SHOW CREATE statements should be used for this. The reason for this limitation is the following: the original query can contain symbols from several character sets (by means of character set introducers). Example: - original query: CREATE VIEW v1 AS SELECT _cp1251 'Hello' AS c1; - UTF8 query (for INFORMATION_SCHEMA): CREATE VIEW v1 AS SELECT 'Hello' AS c1; client/mysqldump.c: Set original character set and collation before dumping definition query. include/my_sys.h: Move out-parameter to the end of list. mysql-test/lib/mtr_report.pl: Ignore server-warnings during the test case. mysql-test/r/create.result: Update result file. mysql-test/r/ctype_cp932_binlog_stm.result: Update result file. mysql-test/r/events.result: Update result file. mysql-test/r/events_bugs.result: Update result file. mysql-test/r/events_grant.result: Update result file. mysql-test/r/func_in.result: Update result file. mysql-test/r/gis.result: Update result file. mysql-test/r/grant.result: Update result file. mysql-test/r/information_schema.result: Update result file. mysql-test/r/information_schema_db.result: Update result file. mysql-test/r/lowercase_view.result: Update result file. mysql-test/r/mysqldump.result: Update result file. mysql-test/r/ndb_sp.result: Update result file. mysql-test/r/ps.result: Update result file. mysql-test/r/rpl_replicate_do.result: Update result file. mysql-test/r/rpl_sp.result: Update result file. mysql-test/r/rpl_trigger.result: Update result file. mysql-test/r/rpl_view.result: Update result file. mysql-test/r/show_check.result: Update result file. mysql-test/r/skip_grants.result: Update result file. mysql-test/r/sp-destruct.result: Update result file. mysql-test/r/sp-error.result: Update result file. mysql-test/r/sp-security.result: Update result file. mysql-test/r/sp.result: Update result file. mysql-test/r/sql_mode.result: Update result file. mysql-test/r/system_mysql_db.result: Update result file. mysql-test/r/temp_table.result: Update result file. mysql-test/r/trigger-compat.result: Update result file. mysql-test/r/trigger-grant.result: Update result file. mysql-test/r/trigger.result: Update result file. mysql-test/r/view.result: Update result file. mysql-test/r/view_grant.result: Update result file. mysql-test/t/events.test: Update test case (new columns added). mysql-test/t/information_schema.test: Update test case (new columns added). mysql-test/t/show_check.test: Test case for SHOW CREATE TRIGGER in prepared statements and stored routines. mysql-test/t/sp-destruct.test: Update test case (new columns added). mysql-test/t/sp.test: Update test case (new columns added). mysql-test/t/view.test: Update test. mysys/charset.c: Move out-parameter to the end of list. scripts/mysql_system_tables.sql: Add new columns to mysql.proc and mysql.event. scripts/mysql_system_tables_fix.sql: Add new columns to mysql.proc and mysql.event. sql/event_data_objects.cc: Support new attributes for events. sql/event_data_objects.h: Support new attributes for events. sql/event_db_repository.cc: Support new attributes for events. sql/event_db_repository.h: Support new attributes for events. sql/events.cc: Add new columns to SHOW CREATE event resultset. sql/mysql_priv.h: 1. Introduce Object_creation_ctx; 2. Introduce SHOW CREATE TRIGGER; 3. Introduce auxilary functions. sql/sp.cc: Add support for new store routines attributes. sql/sp_head.cc: Add support for new store routines attributes. sql/sp_head.h: Add support for new store routines attributes. sql/sql_lex.cc: Generate UTF8-body on parsing/lexing. sql/sql_lex.h: 1. Generate UTF8-body on parsing/lexing. 2. Introduce SHOW CREATE TRIGGER. sql/sql_parse.cc: Introduce SHOW CREATE TRIGGER. sql/sql_partition.cc: Update parse_sql(). sql/sql_prepare.cc: Update parse_sql(). sql/sql_show.cc: Support new attributes for views sql/sql_trigger.cc: Support new attributes for views sql/sql_trigger.h: Support new attributes for views sql/sql_view.cc: Support new attributes for views sql/sql_yacc.yy: 1. Add SHOW CREATE TRIGGER statement. 2. Generate UTF8-body for views, stored routines, triggers and events. sql/table.cc: Introduce Object_creation_ctx. sql/table.h: Introduce Object_creation_ctx. sql/share/errmsg.txt: Add new errors. mysql-test/include/ddl_i18n.check_events.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_sp.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_triggers.inc: Aux file for test suite. mysql-test/include/ddl_i18n.check_views.inc: Aux file for test suite. mysql-test/include/have_cp1251.inc: Aux file for test suite. mysql-test/include/have_cp866.inc: Aux file for test suite. mysql-test/include/have_koi8r.inc: Aux file for test suite. mysql-test/include/have_utf8.inc: Aux file for test suite. mysql-test/r/ddl_i18n_koi8r.result: Result file. mysql-test/r/ddl_i18n_utf8.result: Result file. mysql-test/r/have_cp1251.require: Aux file for test suite. mysql-test/r/have_cp866.require: Aux file for test suite. mysql-test/r/have_koi8r.require: Aux file for test suite. mysql-test/r/have_utf8.require: Aux file for test suite. mysql-test/t/ddl_i18n_koi8r.test: Complete koi8r test case for the CS patch. mysql-test/t/ddl_i18n_utf8.test: Complete utf8 test case for the CS patch.
2007-06-28 19:34:54 +02:00
}
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
DBUG_RETURN(FALSE);
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
err_truncate:
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
my_error(ER_EVENT_DATA_TOO_LONG, MYF(0), fields[f_num]->field_name);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
DBUG_RETURN(TRUE);
}
/*
Performs an index scan of event_table (mysql.event) and fills schema_table.
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
SYNOPSIS
Event_db_repository::index_read_for_db_for_i_s()
thd Thread
schema_table The I_S.EVENTS table
event_table The event table to use for loading (mysql.event)
db For which schema to do an index scan.
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
RETURN VALUE
0 OK
1 Error
*/
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
bool
Event_db_repository::index_read_for_db_for_i_s(THD *thd, TABLE *schema_table,
TABLE *event_table,
const char *db)
{
CHARSET_INFO *scs= system_charset_info;
KEY *key_info;
uint key_len;
uchar *key_buf;
DBUG_ENTER("Event_db_repository::index_read_for_db_for_i_s");
DBUG_PRINT("info", ("Using prefix scanning on PK"));
int ret= event_table->file->ha_index_init(0, 1);
if (ret)
{
event_table->file->print_error(ret, MYF(0));
DBUG_RETURN(true);
}
key_info= event_table->key_info;
if (key_info->user_defined_key_parts == 0 ||
key_info->key_part[0].field != event_table->field[ET_FIELD_DB])
{
/* Corrupted table: no index or index on a wrong column */
fixes for test failures and small collateral changes mysql-test/lib/My/Test.pm: somehow with "print" we get truncated writes sometimes mysql-test/suite/perfschema/r/digest_table_full.result: md5 hashes of statement digests differ, because yacc token codes are different in mariadb mysql-test/suite/perfschema/r/dml_handler.result: host table is not ported over yet mysql-test/suite/perfschema/r/information_schema.result: host table is not ported over yet mysql-test/suite/perfschema/r/nesting.result: this differs, because we don't rewrite general log queries, and multi-statement packets are logged as a one entry. this result file is identical to what mysql-5.6.5 produces with the --log-raw option. mysql-test/suite/perfschema/r/relaylog.result: MariaDB modifies the binlog index file directly, while MySQL 5.6 has a feature "crash-safe binlog index" and modifies a special "crash-safe" shadow copy of the index file and then moves it over. That's why this test shows "NONE" index file writes in MySQL and "MANY" in MariaDB. mysql-test/suite/perfschema/r/server_init.result: MariaDB initializes the "manager" resources from the "manager" thread, and starts this thread only when --flush-time is not 0. MySQL 5.6 initializes "manager" resources unconditionally on server startup. mysql-test/suite/perfschema/r/stage_mdl_global.result: this differs, because MariaDB disables query cache when query_cache_size=0. MySQL does not do that, and this causes useless mutex locks and waits. mysql-test/suite/perfschema/r/statement_digest.result: md5 hashes of statement digests differ, because yacc token codes are different in mariadb mysql-test/suite/perfschema/r/statement_digest_consumers.result: md5 hashes of statement digests differ, because yacc token codes are different in mariadb mysql-test/suite/perfschema/r/statement_digest_long_query.result: md5 hashes of statement digests differ, because yacc token codes are different in mariadb mysql-test/suite/rpl/r/rpl_mixed_drop_create_temp_table.result: will be updated to match 5.6 when alfranio.correia@oracle.com-20110512172919-c1b5kmum4h52g0ni and anders.song@greatopensource.com-20110105052107-zoab0bsf5a6xxk2y are merged mysql-test/suite/rpl/r/rpl_non_direct_mixed_mixing_engines.result: will be updated to match 5.6 when anders.song@greatopensource.com-20110105052107-zoab0bsf5a6xxk2y is merged
2012-09-27 20:09:46 +02:00
my_error(ER_CANNOT_LOAD_FROM_TABLE_V2, MYF(0), "mysql", "event");
ret= 1;
goto end;
}
event_table->field[ET_FIELD_DB]->store(db, strlen(db), scs);
key_len= key_info->key_part[0].store_length;
WL#3817: Simplify string / memory area types and make things more consistent (first part) The following type conversions was done: - Changed byte to uchar - Changed gptr to uchar* - Change my_string to char * - Change my_size_t to size_t - Change size_s to size_t Removed declaration of byte, gptr, my_string, my_size_t and size_s. Following function parameter changes was done: - All string functions in mysys/strings was changed to use size_t instead of uint for string lengths. - All read()/write() functions changed to use size_t (including vio). - All protocoll functions changed to use size_t instead of uint - Functions that used a pointer to a string length was changed to use size_t* - Changed malloc(), free() and related functions from using gptr to use void * as this requires fewer casts in the code and is more in line with how the standard functions work. - Added extra length argument to dirname_part() to return the length of the created string. - Changed (at least) following functions to take uchar* as argument: - db_dump() - my_net_write() - net_write_command() - net_store_data() - DBUG_DUMP() - decimal2bin() & bin2decimal() - Changed my_compress() and my_uncompress() to use size_t. Changed one argument to my_uncompress() from a pointer to a value as we only return one value (makes function easier to use). - Changed type of 'pack_data' argument to packfrm() to avoid casts. - Changed in readfrm() and writefrom(), ha_discover and handler::discover() the type for argument 'frmdata' to uchar** to avoid casts. - Changed most Field functions to use uchar* instead of char* (reduced a lot of casts). - Changed field->val_xxx(xxx, new_ptr) to take const pointers. Other changes: - Removed a lot of not needed casts - Added a few new cast required by other changes - Added some cast to my_multi_malloc() arguments for safety (as string lengths needs to be uint, not size_t). - Fixed all calls to hash-get-key functions to use size_t*. (Needed to be done explicitely as this conflict was often hided by casting the function to hash_get_key). - Changed some buffers to memory regions to uchar* to avoid casts. - Changed some string lengths from uint to size_t. - Changed field->ptr to be uchar* instead of char*. This allowed us to get rid of a lot of casts. - Some changes from true -> TRUE, false -> FALSE, unsigned char -> uchar - Include zlib.h in some files as we needed declaration of crc32() - Changed MY_FILE_ERROR to be (size_t) -1. - Changed many variables to hold the result of my_read() / my_write() to be size_t. This was needed to properly detect errors (which are returned as (size_t) -1). - Removed some very old VMS code - Changed packfrm()/unpackfrm() to not be depending on uint size (portability fix) - Removed windows specific code to restore cursor position as this causes slowdown on windows and we should not mix read() and pread() calls anyway as this is not thread safe. Updated function comment to reflect this. Changed function that depended on original behavior of my_pwrite() to itself restore the cursor position (one such case). - Added some missing checking of return value of malloc(). - Changed definition of MOD_PAD_CHAR_TO_FULL_LENGTH to avoid 'long' overflow. - Changed type of table_def::m_size from my_size_t to ulong to reflect that m_size is the number of elements in the array, not a string/memory length. - Moved THD::max_row_length() to table.cc (as it's not depending on THD). Inlined max_row_length_blob() into this function. - More function comments - Fixed some compiler warnings when compiled without partitions. - Removed setting of LEX_STRING() arguments in declaration (portability fix). - Some trivial indentation/variable name changes. - Some trivial code simplifications: - Replaced some calls to alloc_root + memcpy to use strmake_root()/strdup_root(). - Changed some calls from memdup() to strmake() (Safety fix) - Simpler loops in client-simple.c BitKeeper/etc/ignore: added libmysqld/ha_ndbcluster_cond.cc --- added debian/defs.mk debian/control client/completion_hash.cc: Remove not needed casts client/my_readline.h: Remove some old types client/mysql.cc: Simplify types client/mysql_upgrade.c: Remove some old types Update call to dirname_part client/mysqladmin.cc: Remove some old types client/mysqlbinlog.cc: Remove some old types Change some buffers to be uchar to avoid casts client/mysqlcheck.c: Remove some old types client/mysqldump.c: Remove some old types Remove some not needed casts Change some string lengths to size_t client/mysqlimport.c: Remove some old types client/mysqlshow.c: Remove some old types client/mysqlslap.c: Remove some old types Remove some not needed casts client/mysqltest.c: Removed some old types Removed some not needed casts Updated hash-get-key function arguments Updated parameters to dirname_part() client/readline.cc: Removed some old types Removed some not needed casts Changed some string lengths to use size_t client/sql_string.cc: Removed some old types dbug/dbug.c: Removed some old types Changed some string lengths to use size_t Changed some prototypes to avoid casts extra/comp_err.c: Removed some old types extra/innochecksum.c: Removed some old types extra/my_print_defaults.c: Removed some old types extra/mysql_waitpid.c: Removed some old types extra/perror.c: Removed some old types extra/replace.c: Removed some old types Updated parameters to dirname_part() extra/resolve_stack_dump.c: Removed some old types extra/resolveip.c: Removed some old types include/config-win.h: Removed some old types include/decimal.h: Changed binary strings to be uchar* instead of char* include/ft_global.h: Removed some old types include/hash.h: Removed some old types include/heap.h: Removed some old types Changed records_under_level to be 'ulong' instead of 'uint' to clarify usage of variable include/keycache.h: Removed some old types include/m_ctype.h: Removed some old types Changed some string lengths to use size_t Changed character length functions to return uint unsigned char -> uchar include/m_string.h: Removed some old types Changed some string lengths to use size_t include/my_alloc.h: Changed some string lengths to use size_t include/my_base.h: Removed some old types include/my_dbug.h: Removed some old types Changed some string lengths to use size_t Changed db_dump() to take uchar * as argument for memory to reduce number of casts in usage include/my_getopt.h: Removed some old types include/my_global.h: Removed old types: my_size_t -> size_t byte -> uchar gptr -> uchar * include/my_list.h: Removed some old types include/my_nosys.h: Removed some old types include/my_pthread.h: Removed some old types include/my_sys.h: Removed some old types Changed MY_FILE_ERROR to be in line with new definitions of my_write()/my_read() Changed some string lengths to use size_t my_malloc() / my_free() now uses void * Updated parameters to dirname_part() & my_uncompress() include/my_tree.h: Removed some old types include/my_trie.h: Removed some old types include/my_user.h: Changed some string lengths to use size_t include/my_vle.h: Removed some old types include/my_xml.h: Removed some old types Changed some string lengths to use size_t include/myisam.h: Removed some old types include/myisammrg.h: Removed some old types include/mysql.h: Removed some old types Changed byte streams to use uchar* instead of char* include/mysql_com.h: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts include/queues.h: Removed some old types include/sql_common.h: Removed some old types include/sslopt-longopts.h: Removed some old types include/violite.h: Removed some old types Changed some string lengths to use size_t libmysql/client_settings.h: Removed some old types libmysql/libmysql.c: Removed some old types libmysql/manager.c: Removed some old types libmysqld/emb_qcache.cc: Removed some old types libmysqld/emb_qcache.h: Removed some old types libmysqld/lib_sql.cc: Removed some old types Removed some not needed casts Changed some buffers to be uchar* to avoid casts true -> TRUE, false -> FALSE mysys/array.c: Removed some old types mysys/charset.c: Changed some string lengths to use size_t mysys/checksum.c: Include zlib to get definition for crc32 Removed some old types mysys/default.c: Removed some old types Changed some string lengths to use size_t mysys/default_modify.c: Changed some string lengths to use size_t Removed some not needed casts mysys/hash.c: Removed some old types Changed some string lengths to use size_t Note: Prototype of hash_key() has changed which may cause problems if client uses hash_init() with a cast for the hash-get-key function. hash_element now takes 'ulong' as the index type (cleanup) mysys/list.c: Removed some old types mysys/mf_cache.c: Changed some string lengths to use size_t mysys/mf_dirname.c: Removed some old types Changed some string lengths to use size_t Added argument to dirname_part() to avoid calculation of length for 'to' mysys/mf_fn_ext.c: Removed some old types Updated parameters to dirname_part() mysys/mf_format.c: Removed some old types Changed some string lengths to use size_t mysys/mf_getdate.c: Removed some old types mysys/mf_iocache.c: Removed some old types Changed some string lengths to use size_t Changed calculation of 'max_length' to be done the same way in all functions mysys/mf_iocache2.c: Removed some old types Changed some string lengths to use size_t Clean up comments Removed not needed indentation mysys/mf_keycache.c: Removed some old types mysys/mf_keycaches.c: Removed some old types mysys/mf_loadpath.c: Removed some old types mysys/mf_pack.c: Removed some old types Changed some string lengths to use size_t Removed some not needed casts Removed very old VMS code Updated parameters to dirname_part() Use result of dirnam_part() to remove call to strcat() mysys/mf_path.c: Removed some old types mysys/mf_radix.c: Removed some old types mysys/mf_same.c: Removed some old types mysys/mf_sort.c: Removed some old types mysys/mf_soundex.c: Removed some old types mysys/mf_strip.c: Removed some old types mysys/mf_tempdir.c: Removed some old types mysys/mf_unixpath.c: Removed some old types mysys/mf_wfile.c: Removed some old types mysys/mulalloc.c: Removed some old types mysys/my_alloc.c: Removed some old types Changed some string lengths to use size_t Use void* as type for allocated memory area Removed some not needed casts Changed argument 'Size' to 'length' according coding guidelines mysys/my_chsize.c: Changed some buffers to be uchar* to avoid casts mysys/my_compress.c: More comments Removed some old types Changed string lengths to use size_t Changed arguments to my_uncompress() to make them easier to understand Changed packfrm()/unpackfrm() to not be depending on uint size (portability fix) Changed type of 'pack_data' argument to packfrm() to avoid casts. mysys/my_conio.c: Changed some string lengths to use size_t mysys/my_create.c: Removed some old types mysys/my_div.c: Removed some old types mysys/my_error.c: Removed some old types mysys/my_fopen.c: Removed some old types mysys/my_fstream.c: Removed some old types Changed some string lengths to use size_t writen -> written mysys/my_getopt.c: Removed some old types mysys/my_getwd.c: Removed some old types More comments mysys/my_init.c: Removed some old types mysys/my_largepage.c: Removed some old types Changed some string lengths to use size_t mysys/my_lib.c: Removed some old types mysys/my_lockmem.c: Removed some old types mysys/my_malloc.c: Removed some old types Changed malloc(), free() and related functions to use void * Changed all functions to use size_t mysys/my_memmem.c: Indentation cleanup mysys/my_once.c: Removed some old types Changed malloc(), free() and related functions to use void * mysys/my_open.c: Removed some old types mysys/my_pread.c: Removed some old types Changed all functions to use size_t Added comment for how my_pread() / my_pwrite() are supposed to work. Removed windows specific code to restore cursor position as this causes slowdown on windows and we should not mix read() and pread() calls anyway as this is not thread safe. (If we ever would really need this, it should be enabled only with a flag argument) mysys/my_quick.c: Removed some old types Changed all functions to use size_t mysys/my_read.c: Removed some old types Changed all functions to use size_t mysys/my_realloc.c: Removed some old types Use void* as type for allocated memory area Changed all functions to use size_t mysys/my_static.c: Removed some old types mysys/my_static.h: Removed some old types mysys/my_vle.c: Removed some old types mysys/my_wincond.c: Removed some old types mysys/my_windac.c: Removed some old types mysys/my_write.c: Removed some old types Changed all functions to use size_t mysys/ptr_cmp.c: Removed some old types Changed all functions to use size_t mysys/queues.c: Removed some old types mysys/safemalloc.c: Removed some old types Changed malloc(), free() and related functions to use void * Changed all functions to use size_t mysys/string.c: Removed some old types Changed all functions to use size_t mysys/testhash.c: Removed some old types mysys/thr_alarm.c: Removed some old types mysys/thr_lock.c: Removed some old types mysys/tree.c: Removed some old types mysys/trie.c: Removed some old types mysys/typelib.c: Removed some old types plugin/daemon_example/daemon_example.cc: Removed some old types regex/reginit.c: Removed some old types server-tools/instance-manager/buffer.cc: Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/buffer.h: Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/commands.cc: Removed some old types Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/instance_map.cc: Removed some old types Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/instance_options.cc: Changed buffer to be of type uchar* Replaced alloc_root + strcpy() with strdup_root() server-tools/instance-manager/mysql_connection.cc: Changed buffer to be of type uchar* server-tools/instance-manager/options.cc: Removed some old types server-tools/instance-manager/parse.cc: Changed some string lengths to use size_t server-tools/instance-manager/parse.h: Removed some old types Changed some string lengths to use size_t server-tools/instance-manager/protocol.cc: Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t server-tools/instance-manager/protocol.h: Changed some string lengths to use size_t server-tools/instance-manager/user_map.cc: Removed some old types Changed some string lengths to use size_t sql/derror.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t sql/discover.cc: Changed in readfrm() and writefrom() the type for argument 'frmdata' to uchar** to avoid casts Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts sql/event_data_objects.cc: Removed some old types Added missing casts for alloc() and sprintf() sql/event_db_repository.cc: Changed some buffers to be uchar* to avoid casts Added missing casts for sprintf() sql/event_queue.cc: Removed some old types sql/field.cc: Removed some old types Changed memory buffers to be uchar* Changed some string lengths to use size_t Removed a lot of casts Safety fix in Field_blob::val_decimal() to not access zero pointer sql/field.h: Removed some old types Changed memory buffers to be uchar* (except of store() as this would have caused too many other changes). Changed some string lengths to use size_t Removed some not needed casts Changed val_xxx(xxx, new_ptr) to take const pointers sql/field_conv.cc: Removed some old types Added casts required because memory area pointers are now uchar* sql/filesort.cc: Initalize variable that was used unitialized in error conditions sql/gen_lex_hash.cc: Removed some old types Changed memory buffers to be uchar* Changed some string lengths to use size_t Removed a lot of casts Safety fix in Field_blob::val_decimal() to not access zero pointer sql/gstream.h: Added required cast sql/ha_ndbcluster.cc: Removed some old types Updated hash-get-key function arguments Changed some buffers to be uchar* to avoid casts Added required casts Removed some not needed casts sql/ha_ndbcluster.h: Removed some old types sql/ha_ndbcluster_binlog.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Replaced sql_alloc() + memcpy() + set end 0 with sql_strmake() Changed some string lengths to use size_t Added missing casts for alloc() and sprintf() sql/ha_ndbcluster_binlog.h: Removed some old types sql/ha_ndbcluster_cond.cc: Removed some old types Removed some not needed casts sql/ha_ndbcluster_cond.h: Removed some old types sql/ha_partition.cc: Removed some old types Changed prototype for change_partition() to avoid casts sql/ha_partition.h: Removed some old types sql/handler.cc: Removed some old types Changed some string lengths to use size_t sql/handler.h: Removed some old types Changed some string lengths to use size_t Changed type for 'frmblob' parameter for discover() and ha_discover() to get fewer casts sql/hash_filo.h: Removed some old types Changed all functions to use size_t sql/hostname.cc: Removed some old types sql/item.cc: Removed some old types Changed some string lengths to use size_t Use strmake() instead of memdup() to create a null terminated string. Updated calls to new Field() sql/item.h: Removed some old types Changed malloc(), free() and related functions to use void * Changed some buffers to be uchar* to avoid casts sql/item_cmpfunc.cc: Removed some old types Changed some buffers to be uchar* to avoid casts sql/item_cmpfunc.h: Removed some old types sql/item_create.cc: Removed some old types sql/item_func.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts Added test for failing alloc() in init_result_field() Remove old confusing comment Fixed compiler warning sql/item_func.h: Removed some old types sql/item_row.cc: Removed some old types sql/item_row.h: Removed some old types sql/item_strfunc.cc: Include zlib (needed becasue we call crc32) Removed some old types sql/item_strfunc.h: Removed some old types Changed some types to match new function prototypes sql/item_subselect.cc: Removed some old types sql/item_subselect.h: Removed some old types sql/item_sum.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/item_sum.h: Removed some old types sql/item_timefunc.cc: Removed some old types Changed some string lengths to use size_t sql/item_timefunc.h: Removed some old types sql/item_xmlfunc.cc: Changed some string lengths to use size_t sql/item_xmlfunc.h: Removed some old types sql/key.cc: Removed some old types Removed some not needed casts sql/lock.cc: Removed some old types Added some cast to my_multi_malloc() arguments for safety sql/log.cc: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts Changed usage of pwrite() to not assume it holds the cursor position for the file Made usage of my_read() safer sql/log_event.cc: Removed some old types Added checking of return value of malloc() in pack_info() Changed some buffers to be uchar* to avoid casts Removed some 'const' to avoid casts Added missing casts for alloc() and sprintf() Added required casts Removed some not needed casts Added some cast to my_multi_malloc() arguments for safety sql/log_event.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/log_event_old.cc: Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/log_event_old.h: Changed some buffers to be uchar* to avoid casts sql/mf_iocache.cc: Removed some old types sql/my_decimal.cc: Changed memory area to use uchar* sql/my_decimal.h: Changed memory area to use uchar* sql/mysql_priv.h: Removed some old types Changed malloc(), free() and related functions to use void * Changed some string lengths to use size_t Changed definition of MOD_PAD_CHAR_TO_FULL_LENGTH to avoid long overflow Changed some buffers to be uchar* to avoid casts sql/mysqld.cc: Removed some old types sql/net_serv.cc: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts Ensure that vio_read()/vio_write() return values are stored in a size_t variable Removed some not needed casts sql/opt_range.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/opt_range.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/opt_sum.cc: Removed some old types Removed some not needed casts sql/parse_file.cc: Removed some old types Changed some string lengths to use size_t Changed alloc_root + memcpy + set end 0 -> strmake_root() sql/parse_file.h: Removed some old types sql/partition_info.cc: Removed some old types Added missing casts for alloc() Changed some buffers to be uchar* to avoid casts sql/partition_info.h: Changed some buffers to be uchar* to avoid casts sql/protocol.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/protocol.h: Removed some old types Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t sql/records.cc: Removed some old types sql/repl_failsafe.cc: Removed some old types Changed some string lengths to use size_t Added required casts sql/rpl_filter.cc: Removed some old types Updated hash-get-key function arguments Changed some string lengths to use size_t sql/rpl_filter.h: Changed some string lengths to use size_t sql/rpl_injector.h: Removed some old types sql/rpl_record.cc: Removed some old types Removed some not needed casts Changed some buffers to be uchar* to avoid casts sql/rpl_record.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/rpl_record_old.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/rpl_record_old.h: Removed some old types Changed some buffers to be uchar* to avoid cast sql/rpl_rli.cc: Removed some old types sql/rpl_tblmap.cc: Removed some old types sql/rpl_tblmap.h: Removed some old types sql/rpl_utility.cc: Removed some old types sql/rpl_utility.h: Removed some old types Changed type of m_size from my_size_t to ulong to reflect that m_size is the number of elements in the array, not a string/memory length sql/set_var.cc: Removed some old types Updated parameters to dirname_part() sql/set_var.h: Removed some old types sql/slave.cc: Removed some old types Changed some string lengths to use size_t sql/slave.h: Removed some old types sql/sp.cc: Removed some old types Added missing casts for printf() sql/sp.h: Removed some old types Updated hash-get-key function arguments sql/sp_cache.cc: Removed some old types Added missing casts for printf() Updated hash-get-key function arguments sql/sp_head.cc: Removed some old types Added missing casts for alloc() and printf() Added required casts Updated hash-get-key function arguments sql/sp_head.h: Removed some old types sql/sp_pcontext.cc: Removed some old types sql/sp_pcontext.h: Removed some old types sql/sql_acl.cc: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts Removed some not needed casts Added required casts sql/sql_analyse.cc: Changed some buffers to be uchar* to avoid casts sql/sql_analyse.h: Changed some buffers to be uchar* to avoid casts sql/sql_array.h: Removed some old types sql/sql_base.cc: Removed some old types Updated hash-get-key function arguments sql/sql_binlog.cc: Removed some old types Added missing casts for printf() sql/sql_cache.cc: Removed some old types Updated hash-get-key function arguments Removed some not needed casts Changed some string lengths to use size_t sql/sql_cache.h: Removed some old types Removed reference to not existing function cache_key() Updated hash-get-key function arguments sql/sql_class.cc: Removed some old types Updated hash-get-key function arguments Added missing casts for alloc() Updated hash-get-key function arguments Moved THD::max_row_length() to table.cc (as it's not depending on THD) Removed some not needed casts sql/sql_class.h: Removed some old types Changed malloc(), free() and related functions to use void * Removed some not needed casts Changed some string lengths to use size_t Moved max_row_length and max_row_length_blob() to table.cc, as they are not depending on THD sql/sql_connect.cc: Removed some old types Added required casts sql/sql_db.cc: Removed some old types Removed some not needed casts Added some cast to my_multi_malloc() arguments for safety Added missing casts for alloc() sql/sql_delete.cc: Removed some old types sql/sql_handler.cc: Removed some old types Updated hash-get-key function arguments Added some cast to my_multi_malloc() arguments for safety sql/sql_help.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/sql_insert.cc: Removed some old types Added missing casts for alloc() and printf() sql/sql_lex.cc: Removed some old types sql/sql_lex.h: Removed some old types Removed some not needed casts sql/sql_list.h: Removed some old types Removed some not needed casts sql/sql_load.cc: Removed some old types Removed compiler warning sql/sql_manager.cc: Removed some old types sql/sql_map.cc: Removed some old types sql/sql_map.h: Removed some old types sql/sql_olap.cc: Removed some old types sql/sql_parse.cc: Removed some old types Trivial move of code lines to make things more readable Changed some string lengths to use size_t Added missing casts for alloc() sql/sql_partition.cc: Removed some old types Removed compiler warnings about not used functions Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/sql_partition.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/sql_plugin.cc: Removed some old types Added missing casts for alloc() Updated hash-get-key function arguments sql/sql_prepare.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Added missing casts for alloc() and printf() sql-common/client.c: Removed some old types Changed some memory areas to use uchar* sql-common/my_user.c: Changed some string lengths to use size_t sql-common/pack.c: Changed some buffers to be uchar* to avoid casts sql/sql_repl.cc: Added required casts Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t sql/sql_select.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some old types sql/sql_select.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/sql_servers.cc: Removed some old types Updated hash-get-key function arguments sql/sql_show.cc: Removed some old types Added missing casts for alloc() Removed some not needed casts sql/sql_string.cc: Removed some old types Added required casts sql/sql_table.cc: Removed some old types Removed compiler warning about not used variable Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/sql_test.cc: Removed some old types sql/sql_trigger.cc: Removed some old types Added missing casts for alloc() sql/sql_udf.cc: Removed some old types Updated hash-get-key function arguments sql/sql_union.cc: Removed some old types sql/sql_update.cc: Removed some old types Removed some not needed casts sql/sql_view.cc: Removed some old types sql/sql_yacc.yy: Removed some old types Changed some string lengths to use size_t Added missing casts for alloc() sql/stacktrace.c: Removed some old types sql/stacktrace.h: Removed some old types sql/structs.h: Removed some old types sql/table.cc: Removed some old types Updated hash-get-key function arguments Changed some buffers to be uchar* to avoid casts Removed setting of LEX_STRING() arguments in declaration Added required casts More function comments Moved max_row_length() here from sql_class.cc/sql_class.h sql/table.h: Removed some old types Changed some string lengths to use size_t sql/thr_malloc.cc: Use void* as type for allocated memory area Changed all functions to use size_t sql/tzfile.h: Changed some buffers to be uchar* to avoid casts sql/tztime.cc: Changed some buffers to be uchar* to avoid casts Updated hash-get-key function arguments Added missing casts for alloc() Removed some not needed casts sql/uniques.cc: Removed some old types Removed some not needed casts sql/unireg.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts Added missing casts for alloc() storage/archive/archive_reader.c: Removed some old types storage/archive/azio.c: Removed some old types Removed some not needed casts storage/archive/ha_archive.cc: Removed some old types Changed type for 'frmblob' in archive_discover() to match handler Updated hash-get-key function arguments Removed some not needed casts storage/archive/ha_archive.h: Removed some old types storage/blackhole/ha_blackhole.cc: Removed some old types storage/blackhole/ha_blackhole.h: Removed some old types storage/csv/ha_tina.cc: Removed some old types Updated hash-get-key function arguments Changed some buffers to be uchar* to avoid casts storage/csv/ha_tina.h: Removed some old types Removed some not needed casts storage/csv/transparent_file.cc: Removed some old types Changed type of 'bytes_read' to be able to detect read errors Fixed indentation storage/csv/transparent_file.h: Removed some old types storage/example/ha_example.cc: Removed some old types Updated hash-get-key function arguments storage/example/ha_example.h: Removed some old types storage/federated/ha_federated.cc: Removed some old types Updated hash-get-key function arguments Removed some not needed casts storage/federated/ha_federated.h: Removed some old types storage/heap/_check.c: Changed some buffers to be uchar* to avoid casts storage/heap/_rectest.c: Removed some old types storage/heap/ha_heap.cc: Removed some old types storage/heap/ha_heap.h: Removed some old types storage/heap/heapdef.h: Removed some old types storage/heap/hp_block.c: Removed some old types Changed some string lengths to use size_t storage/heap/hp_clear.c: Removed some old types storage/heap/hp_close.c: Removed some old types storage/heap/hp_create.c: Removed some old types storage/heap/hp_delete.c: Removed some old types storage/heap/hp_hash.c: Removed some old types storage/heap/hp_info.c: Removed some old types storage/heap/hp_open.c: Removed some old types storage/heap/hp_rfirst.c: Removed some old types storage/heap/hp_rkey.c: Removed some old types storage/heap/hp_rlast.c: Removed some old types storage/heap/hp_rnext.c: Removed some old types storage/heap/hp_rprev.c: Removed some old types storage/heap/hp_rrnd.c: Removed some old types storage/heap/hp_rsame.c: Removed some old types storage/heap/hp_scan.c: Removed some old types storage/heap/hp_test1.c: Removed some old types storage/heap/hp_test2.c: Removed some old types storage/heap/hp_update.c: Removed some old types storage/heap/hp_write.c: Removed some old types Changed some string lengths to use size_t storage/innobase/handler/ha_innodb.cc: Removed some old types Updated hash-get-key function arguments Added missing casts for alloc() and printf() Removed some not needed casts storage/innobase/handler/ha_innodb.h: Removed some old types storage/myisam/ft_boolean_search.c: Removed some old types storage/myisam/ft_nlq_search.c: Removed some old types storage/myisam/ft_parser.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/ft_static.c: Removed some old types storage/myisam/ft_stopwords.c: Removed some old types storage/myisam/ft_update.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/ftdefs.h: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/fulltext.h: Removed some old types storage/myisam/ha_myisam.cc: Removed some old types storage/myisam/ha_myisam.h: Removed some old types storage/myisam/mi_cache.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/mi_check.c: Removed some old types storage/myisam/mi_checksum.c: Removed some old types storage/myisam/mi_close.c: Removed some old types storage/myisam/mi_create.c: Removed some old types storage/myisam/mi_delete.c: Removed some old types storage/myisam/mi_delete_all.c: Removed some old types storage/myisam/mi_dynrec.c: Removed some old types storage/myisam/mi_extra.c: Removed some old types storage/myisam/mi_key.c: Removed some old types storage/myisam/mi_locking.c: Removed some old types storage/myisam/mi_log.c: Removed some old types storage/myisam/mi_open.c: Removed some old types Removed some not needed casts Check argument of my_write()/my_pwrite() in functions returning int Added casting of string lengths to size_t storage/myisam/mi_packrec.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/mi_page.c: Removed some old types storage/myisam/mi_preload.c: Removed some old types storage/myisam/mi_range.c: Removed some old types storage/myisam/mi_rfirst.c: Removed some old types storage/myisam/mi_rkey.c: Removed some old types storage/myisam/mi_rlast.c: Removed some old types storage/myisam/mi_rnext.c: Removed some old types storage/myisam/mi_rnext_same.c: Removed some old types storage/myisam/mi_rprev.c: Removed some old types storage/myisam/mi_rrnd.c: Removed some old types storage/myisam/mi_rsame.c: Removed some old types storage/myisam/mi_rsamepos.c: Removed some old types storage/myisam/mi_scan.c: Removed some old types storage/myisam/mi_search.c: Removed some old types storage/myisam/mi_static.c: Removed some old types storage/myisam/mi_statrec.c: Removed some old types storage/myisam/mi_test1.c: Removed some old types storage/myisam/mi_test2.c: Removed some old types storage/myisam/mi_test3.c: Removed some old types storage/myisam/mi_unique.c: Removed some old types storage/myisam/mi_update.c: Removed some old types storage/myisam/mi_write.c: Removed some old types storage/myisam/myisam_ftdump.c: Removed some old types storage/myisam/myisamchk.c: Removed some old types storage/myisam/myisamdef.h: Removed some old types storage/myisam/myisamlog.c: Removed some old types Indentation fix storage/myisam/myisampack.c: Removed some old types storage/myisam/rt_index.c: Removed some old types storage/myisam/rt_split.c: Removed some old types storage/myisam/sort.c: Removed some old types storage/myisam/sp_defs.h: Removed some old types storage/myisam/sp_key.c: Removed some old types storage/myisammrg/ha_myisammrg.cc: Removed some old types storage/myisammrg/ha_myisammrg.h: Removed some old types storage/myisammrg/myrg_close.c: Removed some old types storage/myisammrg/myrg_def.h: Removed some old types storage/myisammrg/myrg_delete.c: Removed some old types storage/myisammrg/myrg_open.c: Removed some old types Updated parameters to dirname_part() storage/myisammrg/myrg_queue.c: Removed some old types storage/myisammrg/myrg_rfirst.c: Removed some old types storage/myisammrg/myrg_rkey.c: Removed some old types storage/myisammrg/myrg_rlast.c: Removed some old types storage/myisammrg/myrg_rnext.c: Removed some old types storage/myisammrg/myrg_rnext_same.c: Removed some old types storage/myisammrg/myrg_rprev.c: Removed some old types storage/myisammrg/myrg_rrnd.c: Removed some old types storage/myisammrg/myrg_rsame.c: Removed some old types storage/myisammrg/myrg_update.c: Removed some old types storage/myisammrg/myrg_write.c: Removed some old types storage/ndb/include/util/ndb_opts.h: Removed some old types storage/ndb/src/cw/cpcd/main.cpp: Removed some old types storage/ndb/src/kernel/vm/Configuration.cpp: Removed some old types storage/ndb/src/mgmclient/main.cpp: Removed some old types storage/ndb/src/mgmsrv/InitConfigFileParser.cpp: Removed some old types Removed old disabled code storage/ndb/src/mgmsrv/main.cpp: Removed some old types storage/ndb/src/ndbapi/NdbBlob.cpp: Removed some old types storage/ndb/src/ndbapi/NdbOperationDefine.cpp: Removed not used variable storage/ndb/src/ndbapi/NdbOperationInt.cpp: Added required casts storage/ndb/src/ndbapi/NdbScanOperation.cpp: Added required casts storage/ndb/tools/delete_all.cpp: Removed some old types storage/ndb/tools/desc.cpp: Removed some old types storage/ndb/tools/drop_index.cpp: Removed some old types storage/ndb/tools/drop_tab.cpp: Removed some old types storage/ndb/tools/listTables.cpp: Removed some old types storage/ndb/tools/ndb_config.cpp: Removed some old types storage/ndb/tools/restore/consumer_restore.cpp: Changed some buffers to be uchar* to avoid casts with new defintion of packfrm() storage/ndb/tools/restore/restore_main.cpp: Removed some old types storage/ndb/tools/select_all.cpp: Removed some old types storage/ndb/tools/select_count.cpp: Removed some old types storage/ndb/tools/waiter.cpp: Removed some old types strings/bchange.c: Changed function to use uchar * and size_t strings/bcmp.c: Changed function to use uchar * and size_t strings/bmove512.c: Changed function to use uchar * and size_t strings/bmove_upp.c: Changed function to use uchar * and size_t strings/ctype-big5.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-bin.c: Changed functions to use size_t strings/ctype-cp932.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-czech.c: Fixed indentation Changed functions to use size_t strings/ctype-euc_kr.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-eucjpms.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-gb2312.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-gbk.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-latin1.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-mb.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-simple.c: Changed functions to use size_t Simpler loops for caseup/casedown unsigned int -> uint unsigned char -> uchar strings/ctype-sjis.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-tis620.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-uca.c: Changed functions to use size_t unsigned char -> uchar strings/ctype-ucs2.c: Moved inclusion of stdarg.h to other includes usigned char -> uchar Changed functions to use size_t Changed character length functions to return uint strings/ctype-ujis.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-utf8.c: Changed functions to use size_t unsigned char -> uchar Indentation fixes strings/ctype-win1250ch.c: Indentation fixes Changed functions to use size_t strings/ctype.c: Changed functions to use size_t strings/decimal.c: Changed type for memory argument to uchar * strings/do_ctype.c: Indentation fixes strings/my_strtoll10.c: unsigned char -> uchar strings/my_vsnprintf.c: Changed functions to use size_t strings/r_strinstr.c: Removed some old types Changed functions to use size_t strings/str_test.c: Removed some old types strings/strappend.c: Changed functions to use size_t strings/strcont.c: Removed some old types strings/strfill.c: Removed some old types strings/strinstr.c: Changed functions to use size_t strings/strlen.c: Changed functions to use size_t strings/strmake.c: Changed functions to use size_t strings/strnlen.c: Changed functions to use size_t strings/strnmov.c: Changed functions to use size_t strings/strto.c: unsigned char -> uchar strings/strtod.c: Changed functions to use size_t strings/strxnmov.c: Changed functions to use size_t strings/xml.c: Changed functions to use size_t Indentation fixes tests/mysql_client_test.c: Removed some old types tests/thread_test.c: Removed some old types vio/test-ssl.c: Removed some old types vio/test-sslclient.c: Removed some old types vio/test-sslserver.c: Removed some old types vio/vio.c: Removed some old types vio/vio_priv.h: Removed some old types Changed vio_read()/vio_write() to work with size_t vio/viosocket.c: Changed vio_read()/vio_write() to work with size_t Indentation fixes vio/viossl.c: Changed vio_read()/vio_write() to work with size_t Indentation fixes vio/viosslfactories.c: Removed some old types vio/viotest-ssl.c: Removed some old types win/README: More explanations
2007-05-10 11:59:39 +02:00
if (!(key_buf= (uchar *)alloc_root(thd->mem_root, key_len)))
{
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
/* Don't send error, it would be done by sql_alloc_error_handler() */
ret= 1;
goto end;
}
key_copy(key_buf, event_table->record[0], key_info, key_len);
This is based on the userstatv2 patch from Percona and OurDelta. The original code comes, as far as I know, from Google (Mark Callaghan's team) with additional work from Percona, Ourdelta and Weldon Whipple. This code provides the same functionallity, but with a lot of changes to make it faster and better fit the MariaDB infrastucture. Added new status variables: - Com_show_client_statistics, Com_show_index_statistics, Com_show_table_statistics, Com_show_user_statistics - Access_denied_errors, Busy_time (clock time), Binlog_bytes_written, Cpu_time, Empty_queries, Rows_sent, Rows_read Added new variable / startup option 'userstat' to control if user statistics should be enabled or not Added my_getcputime(); Returns cpu time used by this thread. New FLUSH commands: - FLUSH SLOW QUERY LOG - FLUSH TABLE_STATISTICS - FLUSH INDEX_STATISTICS - FLUSH USER_STATISTICS - FLUSH CLIENT_STATISTICS New SHOW commands: - SHOW CLIENT_STATISTICS - SHOW USER_STATISTICS - SHOW TABLE_STATISTICS - SHOW INDEX_STATISTICS New Information schemas: - CLIENT_STATISTICS - USER_STATISTICS - INDEX_STATISTICS - TABLE_STATISTICS Added support for all new flush commands to mysqladmin Added handler::ha_... wrappers for all handler read calls to do statistics counting - Changed all code to use new ha_... calls - Count number of read rows, changed rows and rows read trough an index Added counting of number of bytes sent to binary log (status variable Binlog_bytes_written) Added counting of access denied errors (status variable Access_denied_erors) Bugs fixed: - Fixed bug in add_to_status() and add_diff_to_status() where longlong variables where threated as long - CLOCK_GETTIME was not propely working on Linuxm client/mysqladmin.cc: Added support for all new flush commmands and some common combinations: flush-slow-log flush-table-statistics flush-index-statistics flush-user-statistics flush-client-statistics flush-all-status flush-all-statistics configure.in: Added checking if clock_gettime needs the librt. (Fixes Bug #37639 clock_gettime is never used/enabled in Linux/Unix) include/my_sys.h: Added my_getcputime() include/mysql_com.h: Added LIST_PROCESS_HOST_LEN & new REFRESH target defines mysql-test/r/information_schema.result: New information schema tables added mysql-test/r/information_schema_all_engines.result: New information schema tables added mysql-test/r/information_schema_db.result: New information schema tables added mysql-test/r/log_slow.result: Added testing that flosh slow query logs is accepted mysql-test/r/status_user.result: Basic testing of user, client, table and index statistics mysql-test/t/log_slow.test: Added testing that flosh slow query logs is accepted mysql-test/t/status_user-master.opt: Ensure that we get a fresh restart before running status_user.test mysql-test/t/status_user.test: Basic testing of user, client, table and index statistics mysys/my_getsystime.c: Added my_getcputime() Returns cpu time used by this thread. sql/authors.h: Updated authors to have core and original MySQL developers first. sql/event_data_objects.cc: Updated call to mysql_reset_thd_for_next_command() sql/event_db_repository.cc: Changed to use new ha_... calls sql/filesort.cc: Changed to use new ha_... calls sql/ha_partition.cc: Changed to use new ha_... calls Fixed comment syntax sql/handler.cc: Changed to use new ha_... calls Reset table statistics Added code to update global table and index status Added counting of rows changed sql/handler.h: Added table and index statistics variables Added function reset_statistics() Added handler::ha_... wrappers for all handler read calls to do statistics counting Protected all normal read calls to ensure we use the new calls in the server. Made ha_partition a friend class so that partition code can call the old read functions sql/item_subselect.cc: Changed to use new ha_... calls sql/lex.h: Added keywords for new information schema tables and flush commands sql/log.cc: Added flush_slow_log() Added counting of number of bytes sent to binary log Removed not needed test of thd (It's used before, so it's safe to use) Added THD object to MYSQL_BIN_LOG::write_cache() to simplify statistics counting sql/log.h: Added new parameter to write_cache() Added flush_slow_log() functions. sql/log_event.cc: Updated call to mysql_reset_thd_for_next_command() Changed to use new ha_... calls sql/log_event_old.cc: Updated call to mysql_reset_thd_for_next_command() Changed to use new ha_... calls sql/mysql_priv.h: Updated call to mysql_reset_thd_for_next_command() Added new statistics functions and variables needed by these. sql/mysqld.cc: Added new statistics variables and structures to handle these Added new status variables: - Com_show_client_statistics, Com_show_index_statistics, Com_show_table_statistics, Com_show_user_statistics - Access_denied_errors, Busy_time (clock time), Binlog_bytes_written, Cpu_time, Empty_queries, Rows_set, Rows_read Added new option 'userstat' to control if user statistics should be enabled or not sql/opt_range.cc: Changed to use new ha_... calls sql/opt_range.h: Changed to use new ha_... calls sql/opt_sum.cc: Changed to use new ha_... calls sql/records.cc: Changed to use new ha_... calls sql/set_var.cc: Added variable 'userstat' sql/sp.cc: Changed to use new ha_... calls sql/sql_acl.cc: Changed to use new ha_... calls Added counting of access_denied_errors sql/sql_base.cc: Added call to statistics functions sql/sql_class.cc: Added usage of org_status_var, to store status variables at start of command Added functions THD::update_stats(), THD::update_all_stats() Fixed bug in add_to_status() and add_diff_to_status() where longlong variables where threated as long sql/sql_class.h: Added new status variables to status_var Moved variables that was not ulong in status_var last. Added variables to THD for storing temporary values during statistics counting sql/sql_connect.cc: Variables and functions to calculate user and client statistics Added counting of access_denied_errors and lost_connections sql/sql_cursor.cc: Changed to use new ha_... calls sql/sql_handler.cc: Changed to use new ha_... calls sql/sql_help.cc: Changed to use new ha_... calls sql/sql_insert.cc: Changed to use new ha_... calls sql/sql_lex.h: Added SQLCOM_SHOW_USER_STATS, SQLCOM_SHOW_TABLE_STATS, SQLCOM_SHOW_INDEX_STATS, SQLCOM_SHOW_CLIENT_STATS sql/sql_parse.cc: Added handling of: - SHOW CLIENT_STATISTICS - SHOW USER_STATISTICS - SHOW TABLE_STATISTICS - SHOW INDEX_STATISTICS Added handling of new FLUSH commands: - FLUSH SLOW QUERY LOGS - FLUSH TABLE_STATISTICS - FLUSH INDEX_STATISTICS - FLUSH USER_STATISTICS - FLUSH CLIENT_STATISTICS Added THD parameter to mysql_reset_thd_for_next_command() Added initialization and calls to user statistics functions Added increment of statistics variables empty_queries, rows_sent and access_denied_errors. Added counting of cpu time per query sql/sql_plugin.cc: Changed to use new ha_... calls sql/sql_prepare.cc: Updated call to mysql_reset_thd_for_next_command() sql/sql_select.cc: Changed to use new ha_... calls Indentation changes sql/sql_servers.cc: Changed to use new ha_... calls sql/sql_show.cc: Added counting of access denied errors Added function for new information schema tables: - CLIENT_STATISTICS - USER_STATISTICS - INDEX_STATISTICS - TABLE_STATISTICS Changed to use new ha_... calls sql/sql_table.cc: Changed to use new ha_... calls sql/sql_udf.cc: Changed to use new ha_... calls sql/sql_update.cc: Changed to use new ha_... calls sql/sql_yacc.yy: Add new show and flush commands sql/structs.h: Add name_length to KEY to avoid some strlen Added cache_name to KEY for fast storage of keyvalue in cache Added structs USER_STATS, TABLE_STATS, INDEX_STATS Added function prototypes for statistics functions sql/table.cc: Store db+table+index name into keyinfo->cache_name sql/table.h: Added new information schema tables sql/tztime.cc: Changed to use new ha_... calls
2009-10-19 19:14:48 +02:00
if (!(ret= event_table->file->ha_index_read_map(event_table->record[0],
key_buf,
(key_part_map)1,
2011-07-02 22:08:51 +02:00
HA_READ_KEY_EXACT)))
{
DBUG_PRINT("info",("Found rows. Let's retrieve them. ret=%d", ret));
do
{
ret= copy_event_to_schema_table(thd, schema_table, event_table);
if (ret == 0)
This is based on the userstatv2 patch from Percona and OurDelta. The original code comes, as far as I know, from Google (Mark Callaghan's team) with additional work from Percona, Ourdelta and Weldon Whipple. This code provides the same functionallity, but with a lot of changes to make it faster and better fit the MariaDB infrastucture. Added new status variables: - Com_show_client_statistics, Com_show_index_statistics, Com_show_table_statistics, Com_show_user_statistics - Access_denied_errors, Busy_time (clock time), Binlog_bytes_written, Cpu_time, Empty_queries, Rows_sent, Rows_read Added new variable / startup option 'userstat' to control if user statistics should be enabled or not Added my_getcputime(); Returns cpu time used by this thread. New FLUSH commands: - FLUSH SLOW QUERY LOG - FLUSH TABLE_STATISTICS - FLUSH INDEX_STATISTICS - FLUSH USER_STATISTICS - FLUSH CLIENT_STATISTICS New SHOW commands: - SHOW CLIENT_STATISTICS - SHOW USER_STATISTICS - SHOW TABLE_STATISTICS - SHOW INDEX_STATISTICS New Information schemas: - CLIENT_STATISTICS - USER_STATISTICS - INDEX_STATISTICS - TABLE_STATISTICS Added support for all new flush commands to mysqladmin Added handler::ha_... wrappers for all handler read calls to do statistics counting - Changed all code to use new ha_... calls - Count number of read rows, changed rows and rows read trough an index Added counting of number of bytes sent to binary log (status variable Binlog_bytes_written) Added counting of access denied errors (status variable Access_denied_erors) Bugs fixed: - Fixed bug in add_to_status() and add_diff_to_status() where longlong variables where threated as long - CLOCK_GETTIME was not propely working on Linuxm client/mysqladmin.cc: Added support for all new flush commmands and some common combinations: flush-slow-log flush-table-statistics flush-index-statistics flush-user-statistics flush-client-statistics flush-all-status flush-all-statistics configure.in: Added checking if clock_gettime needs the librt. (Fixes Bug #37639 clock_gettime is never used/enabled in Linux/Unix) include/my_sys.h: Added my_getcputime() include/mysql_com.h: Added LIST_PROCESS_HOST_LEN & new REFRESH target defines mysql-test/r/information_schema.result: New information schema tables added mysql-test/r/information_schema_all_engines.result: New information schema tables added mysql-test/r/information_schema_db.result: New information schema tables added mysql-test/r/log_slow.result: Added testing that flosh slow query logs is accepted mysql-test/r/status_user.result: Basic testing of user, client, table and index statistics mysql-test/t/log_slow.test: Added testing that flosh slow query logs is accepted mysql-test/t/status_user-master.opt: Ensure that we get a fresh restart before running status_user.test mysql-test/t/status_user.test: Basic testing of user, client, table and index statistics mysys/my_getsystime.c: Added my_getcputime() Returns cpu time used by this thread. sql/authors.h: Updated authors to have core and original MySQL developers first. sql/event_data_objects.cc: Updated call to mysql_reset_thd_for_next_command() sql/event_db_repository.cc: Changed to use new ha_... calls sql/filesort.cc: Changed to use new ha_... calls sql/ha_partition.cc: Changed to use new ha_... calls Fixed comment syntax sql/handler.cc: Changed to use new ha_... calls Reset table statistics Added code to update global table and index status Added counting of rows changed sql/handler.h: Added table and index statistics variables Added function reset_statistics() Added handler::ha_... wrappers for all handler read calls to do statistics counting Protected all normal read calls to ensure we use the new calls in the server. Made ha_partition a friend class so that partition code can call the old read functions sql/item_subselect.cc: Changed to use new ha_... calls sql/lex.h: Added keywords for new information schema tables and flush commands sql/log.cc: Added flush_slow_log() Added counting of number of bytes sent to binary log Removed not needed test of thd (It's used before, so it's safe to use) Added THD object to MYSQL_BIN_LOG::write_cache() to simplify statistics counting sql/log.h: Added new parameter to write_cache() Added flush_slow_log() functions. sql/log_event.cc: Updated call to mysql_reset_thd_for_next_command() Changed to use new ha_... calls sql/log_event_old.cc: Updated call to mysql_reset_thd_for_next_command() Changed to use new ha_... calls sql/mysql_priv.h: Updated call to mysql_reset_thd_for_next_command() Added new statistics functions and variables needed by these. sql/mysqld.cc: Added new statistics variables and structures to handle these Added new status variables: - Com_show_client_statistics, Com_show_index_statistics, Com_show_table_statistics, Com_show_user_statistics - Access_denied_errors, Busy_time (clock time), Binlog_bytes_written, Cpu_time, Empty_queries, Rows_set, Rows_read Added new option 'userstat' to control if user statistics should be enabled or not sql/opt_range.cc: Changed to use new ha_... calls sql/opt_range.h: Changed to use new ha_... calls sql/opt_sum.cc: Changed to use new ha_... calls sql/records.cc: Changed to use new ha_... calls sql/set_var.cc: Added variable 'userstat' sql/sp.cc: Changed to use new ha_... calls sql/sql_acl.cc: Changed to use new ha_... calls Added counting of access_denied_errors sql/sql_base.cc: Added call to statistics functions sql/sql_class.cc: Added usage of org_status_var, to store status variables at start of command Added functions THD::update_stats(), THD::update_all_stats() Fixed bug in add_to_status() and add_diff_to_status() where longlong variables where threated as long sql/sql_class.h: Added new status variables to status_var Moved variables that was not ulong in status_var last. Added variables to THD for storing temporary values during statistics counting sql/sql_connect.cc: Variables and functions to calculate user and client statistics Added counting of access_denied_errors and lost_connections sql/sql_cursor.cc: Changed to use new ha_... calls sql/sql_handler.cc: Changed to use new ha_... calls sql/sql_help.cc: Changed to use new ha_... calls sql/sql_insert.cc: Changed to use new ha_... calls sql/sql_lex.h: Added SQLCOM_SHOW_USER_STATS, SQLCOM_SHOW_TABLE_STATS, SQLCOM_SHOW_INDEX_STATS, SQLCOM_SHOW_CLIENT_STATS sql/sql_parse.cc: Added handling of: - SHOW CLIENT_STATISTICS - SHOW USER_STATISTICS - SHOW TABLE_STATISTICS - SHOW INDEX_STATISTICS Added handling of new FLUSH commands: - FLUSH SLOW QUERY LOGS - FLUSH TABLE_STATISTICS - FLUSH INDEX_STATISTICS - FLUSH USER_STATISTICS - FLUSH CLIENT_STATISTICS Added THD parameter to mysql_reset_thd_for_next_command() Added initialization and calls to user statistics functions Added increment of statistics variables empty_queries, rows_sent and access_denied_errors. Added counting of cpu time per query sql/sql_plugin.cc: Changed to use new ha_... calls sql/sql_prepare.cc: Updated call to mysql_reset_thd_for_next_command() sql/sql_select.cc: Changed to use new ha_... calls Indentation changes sql/sql_servers.cc: Changed to use new ha_... calls sql/sql_show.cc: Added counting of access denied errors Added function for new information schema tables: - CLIENT_STATISTICS - USER_STATISTICS - INDEX_STATISTICS - TABLE_STATISTICS Changed to use new ha_... calls sql/sql_table.cc: Changed to use new ha_... calls sql/sql_udf.cc: Changed to use new ha_... calls sql/sql_update.cc: Changed to use new ha_... calls sql/sql_yacc.yy: Add new show and flush commands sql/structs.h: Add name_length to KEY to avoid some strlen Added cache_name to KEY for fast storage of keyvalue in cache Added structs USER_STATS, TABLE_STATS, INDEX_STATS Added function prototypes for statistics functions sql/table.cc: Store db+table+index name into keyinfo->cache_name sql/table.h: Added new information schema tables sql/tztime.cc: Changed to use new ha_... calls
2009-10-19 19:14:48 +02:00
ret= event_table->file->ha_index_next_same(event_table->record[0],
key_buf, key_len);
} while (ret == 0);
}
DBUG_PRINT("info", ("Scan finished. ret=%d", ret));
/* ret is guaranteed to be != 0 */
if (ret == HA_ERR_END_OF_FILE || ret == HA_ERR_KEY_NOT_FOUND)
ret= 0;
else
event_table->file->print_error(ret, MYF(0));
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
end:
event_table->file->ha_index_end();
DBUG_RETURN(MY_TEST(ret));
}
/*
Performs a table scan of event_table (mysql.event) and fills schema_table.
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
SYNOPSIS
Events_db_repository::table_scan_all_for_i_s()
thd Thread
schema_table The I_S.EVENTS in memory table
event_table The event table to use for loading.
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
RETURN VALUE
FALSE OK
TRUE Error
*/
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
bool
Event_db_repository::table_scan_all_for_i_s(THD *thd, TABLE *schema_table,
TABLE *event_table)
{
int ret;
READ_RECORD read_record_info;
DBUG_ENTER("Event_db_repository::table_scan_all_for_i_s");
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
Fix for LP#588251: doStartTableScan() result not checked. The issue was that we didn't always check result of ha_rnd_init() which caused a problem for handlers that returned an error in this code. - Changed prototype of ha_rnd_init() to ensure that we get a compile warning if result is not checked. - Added ha_rnd_init_with_error() that prints error on failure. - Checked all usage of ha_rnd_init() and ensure we generate an error message on failures. - Changed init_read_record() to return 1 on failure. sql/create_options.cc: Fixed wrong printf sql/event_db_repository.cc: Check result from init_read_record() sql/events.cc: Check result from init_read_record() sql/filesort.cc: Check result from ha_rnd_init() sql/ha_partition.cc: Check result from ha_rnd_init() sql/ha_partition.h: Fixed compiler warning sql/handler.cc: Added ha_rnd_init_with_error() Check result from ha_rnd_init() sql/handler.h: Added ha_rnd_init_with_error() Changed prototype of ha_rnd_init() to ensure that we get a compile warning if result is not checked sql/item_subselect.cc: Check result from ha_rnd_init() sql/log.cc: Check result from ha_rnd_init() sql/log_event.cc: Check result from ha_rnd_init() sql/log_event_old.cc: Check result from ha_rnd_init() sql/mysql_priv.h: init_read_record() now returns error code on failure sql/opt_range.cc: Check result from ha_rnd_init() sql/records.cc: init_read_record() now returns error code on failure Check result from ha_rnd_init() sql/sql_acl.cc: Check result from init_read_record() sql/sql_cursor.cc: Print error if ha_rnd_init() fails sql/sql_delete.cc: Check result from init_read_record() sql/sql_help.cc: Check result from init_read_record() sql/sql_plugin.cc: Check result from init_read_record() sql/sql_select.cc: Check result from ha_rnd_init() Print error if ha_rnd_init() fails. sql/sql_servers.cc: Check result from init_read_record() sql/sql_table.cc: Check result from init_read_record() sql/sql_udf.cc: Check result from init_read_record() sql/sql_update.cc: Check result from init_read_record() storage/example/ha_example.cc: Don't return error on rnd_init() storage/ibmdb2i/ha_ibmdb2i.cc: Removed not relevant comment
2010-07-17 00:41:44 +02:00
if (init_read_record(&read_record_info, thd, event_table, NULL, 1, 0, FALSE))
DBUG_RETURN(TRUE);
/*
rr_sequential, in read_record(), returns 137==HA_ERR_END_OF_FILE,
but rr_handle_error returns -1 for that reason. Thus, read_record()
returns -1 eventually.
*/
do
{
ret= read_record_info.read_record(&read_record_info);
if (ret == 0)
ret= copy_event_to_schema_table(thd, schema_table, event_table);
WL#3337 (Event scheduler new architecture) Cleaned up the code a bit. Fixed few leaks. This code still does not load events on server startup from disk. The problem is that there is a need for a THD instance, which does not exist during server boot. This will be solved soon. Still Event_timed is used both for the memory queue and for exectution. This will be changed according to WL#3337 probably in the next commit. sql/event_data_objects.cc: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_data_objects.h: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_db_repository.cc: Cosmetics. Add a new method load_named_event_job, to be made complete in the next commit. It will load from disk an instance of Event_job_data to be used during execution. sql/event_db_repository.h: find_event does not need MEM_ROOT anymore because the memory is allocated on Event's own root. sql/event_queue.cc: Remove dead code. Move dumping of the queue to separate method. Make critical sections in create_event & update_event as small as possible - load the new event outside of the section and free the object also outside of it. sql/event_queue.h: init -> init_queue -> easier for ctags deinit -> deinit_queue -> easier for ctags sql/event_scheduler.cc: empty this file sql/event_scheduler.h: empty this file sql/event_scheduler_ng.cc: add back DBUG_RETURN(0) in thread handlers. We don't stop running events when stopping the scheduler. Therefore remove this method now. If it is needed later it can be added back. sql/event_scheduler_ng.h: Remove stop_all_running_threads() init -> init_scheduler deinit -> deinit_scheduler easier for ctags sql/events.cc: Cosmetics sql/events.h: Cosmetics sql/set_var.cc: Remove references to dead code sql/sql_parse.cc: Reorganize a bit.
2006-07-05 17:12:50 +02:00
} while (ret == 0);
DBUG_PRINT("info", ("Scan finished. ret=%d", ret));
end_read_record(&read_record_info);
/* ret is guaranteed to be != 0 */
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
DBUG_RETURN(ret == -1? FALSE:TRUE);
}
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
/**
Fills I_S.EVENTS with data loaded from mysql.event. Also used by
SHOW EVENTS
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
The reason we reset and backup open tables here is that this
function may be called from any query that accesses
INFORMATION_SCHEMA - including a query that is issued from
a pre-locked statement, one that already has open and locked
tables.
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
@retval FALSE success
@retval TRUE error
*/
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
bool
A pre-requisite patch for the fix for Bug#52044. This patch also fixes Bug#55452 "SET PASSWORD is replicated twice in RBR mode". The goal of this patch is to remove the release of metadata locks from close_thread_tables(). This is necessary to not mistakenly release the locks in the course of a multi-step operation that involves multiple close_thread_tables() or close_tables_for_reopen(). On the same token, move statement commit outside close_thread_tables(). Other cleanups: Cleanup COM_FIELD_LIST. Don't call close_thread_tables() in COM_SHUTDOWN -- there are no open tables there that can be closed (we leave the locked tables mode in THD destructor, and this close_thread_tables() won't leave it anyway). Make open_and_lock_tables() and open_and_lock_tables_derived() call close_thread_tables() upon failure. Remove the calls to close_thread_tables() that are now unnecessary. Simplify the back off condition in Open_table_context. Streamline metadata lock handling in LOCK TABLES implementation. Add asserts to ensure correct life cycle of statement transaction in a session. Remove a piece of dead code that has also become redundant after the fix for Bug 37521. mysql-test/r/variables.result: Update results: set @@autocommit and statement transaction/ prelocked mode. mysql-test/r/view.result: A harmless change in CHECK TABLE <view> status for a broken view. If previously a failure to prelock all functions used in a view would leave the connection in LTM_PRELOCKED mode, now we call close_thread_tables() from open_and_lock_tables() and leave prelocked mode, thus some check in mysql_admin_table() that works only in prelocked/locked tables mode is no longer activated. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Fixed Bug#55452 "SET PASSWORD is replicated twice in RBR mode": extra binlog events are gone from the binary log. mysql-test/t/variables.test: Add a test case: set autocommit and statement transaction/prelocked mode. sql/event_data_objects.cc: Simplify code in Event_job_data::execute(). Move sp_head memory management to lex_end(). sql/event_db_repository.cc: Move the release of metadata locks outside close_thread_tables(). Make sure we call close_thread_tables() when open_and_lock_tables() fails and remove extra code from the events data dictionary. Use close_mysql_tables(), a new internal function to properly close mysql.* tables in the data dictionary. Contract Event_db_repository::drop_events_by_field, drop_schema_events into one function. When dropping all events in a schema, make sure we don't mistakenly release all locks acquired by DROP DATABASE. These include locks on the database name and the global intention exclusive metadata lock. sql/event_db_repository.h: Function open_event_table() does not require an instance of Event_db_repository. sql/events.cc: Use close_mysql_tables() instead of close_thread_tables() to bootstrap events, since the latter no longer releases metadata locks. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 no longer releases acquired metadata locks. Do it in the caller. sql/ha_ndbcluster_binlog.cc: Deploy the new protocol for closing thread tables in run_query() and ndb_binlog_index code. sql/handler.cc: Assert that we never call ha_commit_trans/ ha_rollback_trans in sub-statement, which is now the case. sql/handler.h: Add an accessor to check whether THD_TRANS object is empty (has no transaction started). sql/log.cc: Update a comment. sql/log_event.cc: Since now we commit/rollback statement transaction in mysql_execute_command(), we need a mechanism to communicate from Query_log_event::do_apply_event() to mysql_execute_command() that the statement transaction should be rolled back, not committed. Ideally it would be a virtual method of THD. I hesitate to make THD a virtual base class in this already large patch. Use a thd->variables.option_bits for now. Remove a call to close_thread_tables() from the slave IO thread. It doesn't open any tables, and the protocol for closing thread tables is more complicated now. Make sure we properly close thread tables, however, in Load_data_log_event, which doesn't follow the standard server execution procedure with mysql_execute_command(). @todo: this piece should use Server_runnable framework instead. Remove an unnecessary call to mysql_unlock_tables(). sql/rpl_rli.cc: Update Relay_log_info::slave_close_thread_tables() to follow the new close protocol. sql/set_var.cc: Remove an unused header. sql/slave.cc: Remove an unnecessary call to close_thread_tables(). sql/sp.cc: Remove unnecessary calls to close_thread_tables() from SP DDL implementation. The tables will be closed by the caller, in mysql_execute_command(). When dropping all routines in a database, make sure to not mistakenly drop all metadata locks acquired so far, they include the scoped lock on the schema. sql/sp_head.cc: Correct the protocol that closes thread tables in an SP instruction. Clear lex->sphead before cleaning up lex with lex_end to make sure that we don't delete the sphead twice. It's considered to be "cleaner" and more in line with future changes than calling delete lex->sphead in other places that cleanup the lex. sql/sp_head.h: When destroying m_lex_keeper of an instruction, don't delete the sphead that all lex objects share. @todo: don't store a reference to routine's sp_head instance in instruction's lex. sql/sql_acl.cc: Don't call close_thread_tables() where the caller will do that for us. Fix Bug#55452 "SET PASSWORD is replicated twice in RBR mode" by disabling RBR replication in change_password() function. Use close_mysql_tables() in bootstrap and ACL reload code to make sure we release all metadata locks. sql/sql_base.cc: This is the main part of the patch: - remove manipulation with thd->transaction and thd->mdl_context from close_thread_tables(). Now this function is only responsible for closing tables, nothing else. This is necessary to be able to easily use close_thread_tables() in procedures, that involve multiple open/close tables, which all need to be protected continuously by metadata locks. Add asserts ensuring that TABLE object is only used when is protected by a metadata lock. Simplify the back off condition of Open_table_context, we no longer need to look at the autocommit mode. Make open_and_lock_tables() and open_normal_and_derived_tables() close thread tables and release metadata locks acquired so-far upon failure. This simplifies their usage. Implement close_mysql_tables(). sql/sql_base.h: Add declaration for close_mysql_tables(). sql/sql_class.cc: Remove a piece of dead code that has also become redundant after the fix for Bug 37521. The code became dead when my_eof() was made a non-protocol method, but a method that merely modifies the diagnostics area. The code became redundant with the fix for Bug#37521, when we started to cal close_thread_tables() before Protocol::end_statement(). sql/sql_do.cc: Do nothing in DO if inside a substatement (the assert moved out of trans_rollback_stmt). sql/sql_handler.cc: Add comments. sql/sql_insert.cc: Remove dead code. Release metadata locks explicitly at the end of the delayed insert thread. sql/sql_lex.cc: Add destruction of lex->sphead to lex_end(), lex "reset" method called at the end of each statement. sql/sql_parse.cc: Move close_thread_tables() and other related cleanups to mysql_execute_command() from dispatch_command(). This has become possible after the fix for Bug#37521. Mark federated SERVER statements as DDL. Next step: make sure that we don't store eof packet in the query cache, and move the query cache code outside mysql_parse. Brush up the code of COM_FIELD_LIST. Remove unnecessary calls to close_thread_tables(). When killing a query, don't report "OK" if it was a suicide. sql/sql_parse.h: Remove declaration of a function that is now static. sql/sql_partition.cc: Remove an unnecessary call to close_thread_tables(). sql/sql_plugin.cc: open_and_lock_tables() will clean up after itself after a failure. Move close_thread_tables() above end: label, and replace with close_mysql_tables(), which will also release the metadata lock on mysql.plugin. sql/sql_prepare.cc: Now that we no longer release locks in close_thread_tables() statement prepare code has become more straightforward. Remove the now redundant check for thd->killed() (used only by the backup project) from Execute_server_runnable. Reorder code to take into account that now mysql_execute_command() performs lex->unit.cleanup() and close_thread_tables(). sql/sql_priv.h: Add a new option to server options to interact between the slave SQL thread and execution framework (hack). @todo: use a virtual method of class THD instead. sql/sql_servers.cc: Due to Bug 25705 replication of DROP/CREATE/ALTER SERVER is broken. Make sure at least we do not attempt to replicate these statements using RBR, as this violates the assert in close_mysql_tables(). sql/sql_table.cc: Do not release metadata locks in mysql_rm_table_part2, this is done by the caller. Do not call close_thread_tables() in mysql_create_table(), this is done by the caller. Fix a bug in DROP TABLE under LOCK TABLES when, upon error in wait_while_table_is_used() we would mistakenly release the metadata lock on a non-dropped table. Explicitly release metadata locks when doing an implicit commit. sql/sql_trigger.cc: Now that we delete lex->sphead in lex_end(), zero the trigger's sphead in lex after loading the trigger, to avoid double deletion. sql/sql_udf.cc: Use close_mysql_tables() instead of close_thread_tables(). sql/sys_vars.cc: Remove code added in scope of WL#4284 which would break when we perform set @@session.autocommit along with setting other variables and using tables or functions. A test case added to variables.test. sql/transaction.cc: Add asserts. sql/tztime.cc: Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 12:25:53 +02:00
Event_db_repository::fill_schema_events(THD *thd, TABLE_LIST *i_s_table,
const char *db)
{
A pre-requisite patch for the fix for Bug#52044. This patch also fixes Bug#55452 "SET PASSWORD is replicated twice in RBR mode". The goal of this patch is to remove the release of metadata locks from close_thread_tables(). This is necessary to not mistakenly release the locks in the course of a multi-step operation that involves multiple close_thread_tables() or close_tables_for_reopen(). On the same token, move statement commit outside close_thread_tables(). Other cleanups: Cleanup COM_FIELD_LIST. Don't call close_thread_tables() in COM_SHUTDOWN -- there are no open tables there that can be closed (we leave the locked tables mode in THD destructor, and this close_thread_tables() won't leave it anyway). Make open_and_lock_tables() and open_and_lock_tables_derived() call close_thread_tables() upon failure. Remove the calls to close_thread_tables() that are now unnecessary. Simplify the back off condition in Open_table_context. Streamline metadata lock handling in LOCK TABLES implementation. Add asserts to ensure correct life cycle of statement transaction in a session. Remove a piece of dead code that has also become redundant after the fix for Bug 37521. mysql-test/r/variables.result: Update results: set @@autocommit and statement transaction/ prelocked mode. mysql-test/r/view.result: A harmless change in CHECK TABLE <view> status for a broken view. If previously a failure to prelock all functions used in a view would leave the connection in LTM_PRELOCKED mode, now we call close_thread_tables() from open_and_lock_tables() and leave prelocked mode, thus some check in mysql_admin_table() that works only in prelocked/locked tables mode is no longer activated. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Fixed Bug#55452 "SET PASSWORD is replicated twice in RBR mode": extra binlog events are gone from the binary log. mysql-test/t/variables.test: Add a test case: set autocommit and statement transaction/prelocked mode. sql/event_data_objects.cc: Simplify code in Event_job_data::execute(). Move sp_head memory management to lex_end(). sql/event_db_repository.cc: Move the release of metadata locks outside close_thread_tables(). Make sure we call close_thread_tables() when open_and_lock_tables() fails and remove extra code from the events data dictionary. Use close_mysql_tables(), a new internal function to properly close mysql.* tables in the data dictionary. Contract Event_db_repository::drop_events_by_field, drop_schema_events into one function. When dropping all events in a schema, make sure we don't mistakenly release all locks acquired by DROP DATABASE. These include locks on the database name and the global intention exclusive metadata lock. sql/event_db_repository.h: Function open_event_table() does not require an instance of Event_db_repository. sql/events.cc: Use close_mysql_tables() instead of close_thread_tables() to bootstrap events, since the latter no longer releases metadata locks. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 no longer releases acquired metadata locks. Do it in the caller. sql/ha_ndbcluster_binlog.cc: Deploy the new protocol for closing thread tables in run_query() and ndb_binlog_index code. sql/handler.cc: Assert that we never call ha_commit_trans/ ha_rollback_trans in sub-statement, which is now the case. sql/handler.h: Add an accessor to check whether THD_TRANS object is empty (has no transaction started). sql/log.cc: Update a comment. sql/log_event.cc: Since now we commit/rollback statement transaction in mysql_execute_command(), we need a mechanism to communicate from Query_log_event::do_apply_event() to mysql_execute_command() that the statement transaction should be rolled back, not committed. Ideally it would be a virtual method of THD. I hesitate to make THD a virtual base class in this already large patch. Use a thd->variables.option_bits for now. Remove a call to close_thread_tables() from the slave IO thread. It doesn't open any tables, and the protocol for closing thread tables is more complicated now. Make sure we properly close thread tables, however, in Load_data_log_event, which doesn't follow the standard server execution procedure with mysql_execute_command(). @todo: this piece should use Server_runnable framework instead. Remove an unnecessary call to mysql_unlock_tables(). sql/rpl_rli.cc: Update Relay_log_info::slave_close_thread_tables() to follow the new close protocol. sql/set_var.cc: Remove an unused header. sql/slave.cc: Remove an unnecessary call to close_thread_tables(). sql/sp.cc: Remove unnecessary calls to close_thread_tables() from SP DDL implementation. The tables will be closed by the caller, in mysql_execute_command(). When dropping all routines in a database, make sure to not mistakenly drop all metadata locks acquired so far, they include the scoped lock on the schema. sql/sp_head.cc: Correct the protocol that closes thread tables in an SP instruction. Clear lex->sphead before cleaning up lex with lex_end to make sure that we don't delete the sphead twice. It's considered to be "cleaner" and more in line with future changes than calling delete lex->sphead in other places that cleanup the lex. sql/sp_head.h: When destroying m_lex_keeper of an instruction, don't delete the sphead that all lex objects share. @todo: don't store a reference to routine's sp_head instance in instruction's lex. sql/sql_acl.cc: Don't call close_thread_tables() where the caller will do that for us. Fix Bug#55452 "SET PASSWORD is replicated twice in RBR mode" by disabling RBR replication in change_password() function. Use close_mysql_tables() in bootstrap and ACL reload code to make sure we release all metadata locks. sql/sql_base.cc: This is the main part of the patch: - remove manipulation with thd->transaction and thd->mdl_context from close_thread_tables(). Now this function is only responsible for closing tables, nothing else. This is necessary to be able to easily use close_thread_tables() in procedures, that involve multiple open/close tables, which all need to be protected continuously by metadata locks. Add asserts ensuring that TABLE object is only used when is protected by a metadata lock. Simplify the back off condition of Open_table_context, we no longer need to look at the autocommit mode. Make open_and_lock_tables() and open_normal_and_derived_tables() close thread tables and release metadata locks acquired so-far upon failure. This simplifies their usage. Implement close_mysql_tables(). sql/sql_base.h: Add declaration for close_mysql_tables(). sql/sql_class.cc: Remove a piece of dead code that has also become redundant after the fix for Bug 37521. The code became dead when my_eof() was made a non-protocol method, but a method that merely modifies the diagnostics area. The code became redundant with the fix for Bug#37521, when we started to cal close_thread_tables() before Protocol::end_statement(). sql/sql_do.cc: Do nothing in DO if inside a substatement (the assert moved out of trans_rollback_stmt). sql/sql_handler.cc: Add comments. sql/sql_insert.cc: Remove dead code. Release metadata locks explicitly at the end of the delayed insert thread. sql/sql_lex.cc: Add destruction of lex->sphead to lex_end(), lex "reset" method called at the end of each statement. sql/sql_parse.cc: Move close_thread_tables() and other related cleanups to mysql_execute_command() from dispatch_command(). This has become possible after the fix for Bug#37521. Mark federated SERVER statements as DDL. Next step: make sure that we don't store eof packet in the query cache, and move the query cache code outside mysql_parse. Brush up the code of COM_FIELD_LIST. Remove unnecessary calls to close_thread_tables(). When killing a query, don't report "OK" if it was a suicide. sql/sql_parse.h: Remove declaration of a function that is now static. sql/sql_partition.cc: Remove an unnecessary call to close_thread_tables(). sql/sql_plugin.cc: open_and_lock_tables() will clean up after itself after a failure. Move close_thread_tables() above end: label, and replace with close_mysql_tables(), which will also release the metadata lock on mysql.plugin. sql/sql_prepare.cc: Now that we no longer release locks in close_thread_tables() statement prepare code has become more straightforward. Remove the now redundant check for thd->killed() (used only by the backup project) from Execute_server_runnable. Reorder code to take into account that now mysql_execute_command() performs lex->unit.cleanup() and close_thread_tables(). sql/sql_priv.h: Add a new option to server options to interact between the slave SQL thread and execution framework (hack). @todo: use a virtual method of class THD instead. sql/sql_servers.cc: Due to Bug 25705 replication of DROP/CREATE/ALTER SERVER is broken. Make sure at least we do not attempt to replicate these statements using RBR, as this violates the assert in close_mysql_tables(). sql/sql_table.cc: Do not release metadata locks in mysql_rm_table_part2, this is done by the caller. Do not call close_thread_tables() in mysql_create_table(), this is done by the caller. Fix a bug in DROP TABLE under LOCK TABLES when, upon error in wait_while_table_is_used() we would mistakenly release the metadata lock on a non-dropped table. Explicitly release metadata locks when doing an implicit commit. sql/sql_trigger.cc: Now that we delete lex->sphead in lex_end(), zero the trigger's sphead in lex after loading the trigger, to avoid double deletion. sql/sql_udf.cc: Use close_mysql_tables() instead of close_thread_tables(). sql/sys_vars.cc: Remove code added in scope of WL#4284 which would break when we perform set @@session.autocommit along with setting other variables and using tables or functions. A test case added to variables.test. sql/transaction.cc: Add asserts. sql/tztime.cc: Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 12:25:53 +02:00
TABLE *schema_table= i_s_table->table;
Open_tables_backup open_tables_backup;
TABLE_LIST event_table;
int ret= 0;
DBUG_ENTER("Event_db_repository::fill_schema_events");
DBUG_PRINT("info",("db=%s", db? db:"(null)"));
A pre-requisite patch for the fix for Bug#52044. This patch also fixes Bug#55452 "SET PASSWORD is replicated twice in RBR mode". The goal of this patch is to remove the release of metadata locks from close_thread_tables(). This is necessary to not mistakenly release the locks in the course of a multi-step operation that involves multiple close_thread_tables() or close_tables_for_reopen(). On the same token, move statement commit outside close_thread_tables(). Other cleanups: Cleanup COM_FIELD_LIST. Don't call close_thread_tables() in COM_SHUTDOWN -- there are no open tables there that can be closed (we leave the locked tables mode in THD destructor, and this close_thread_tables() won't leave it anyway). Make open_and_lock_tables() and open_and_lock_tables_derived() call close_thread_tables() upon failure. Remove the calls to close_thread_tables() that are now unnecessary. Simplify the back off condition in Open_table_context. Streamline metadata lock handling in LOCK TABLES implementation. Add asserts to ensure correct life cycle of statement transaction in a session. Remove a piece of dead code that has also become redundant after the fix for Bug 37521. mysql-test/r/variables.result: Update results: set @@autocommit and statement transaction/ prelocked mode. mysql-test/r/view.result: A harmless change in CHECK TABLE <view> status for a broken view. If previously a failure to prelock all functions used in a view would leave the connection in LTM_PRELOCKED mode, now we call close_thread_tables() from open_and_lock_tables() and leave prelocked mode, thus some check in mysql_admin_table() that works only in prelocked/locked tables mode is no longer activated. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Fixed Bug#55452 "SET PASSWORD is replicated twice in RBR mode": extra binlog events are gone from the binary log. mysql-test/t/variables.test: Add a test case: set autocommit and statement transaction/prelocked mode. sql/event_data_objects.cc: Simplify code in Event_job_data::execute(). Move sp_head memory management to lex_end(). sql/event_db_repository.cc: Move the release of metadata locks outside close_thread_tables(). Make sure we call close_thread_tables() when open_and_lock_tables() fails and remove extra code from the events data dictionary. Use close_mysql_tables(), a new internal function to properly close mysql.* tables in the data dictionary. Contract Event_db_repository::drop_events_by_field, drop_schema_events into one function. When dropping all events in a schema, make sure we don't mistakenly release all locks acquired by DROP DATABASE. These include locks on the database name and the global intention exclusive metadata lock. sql/event_db_repository.h: Function open_event_table() does not require an instance of Event_db_repository. sql/events.cc: Use close_mysql_tables() instead of close_thread_tables() to bootstrap events, since the latter no longer releases metadata locks. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 no longer releases acquired metadata locks. Do it in the caller. sql/ha_ndbcluster_binlog.cc: Deploy the new protocol for closing thread tables in run_query() and ndb_binlog_index code. sql/handler.cc: Assert that we never call ha_commit_trans/ ha_rollback_trans in sub-statement, which is now the case. sql/handler.h: Add an accessor to check whether THD_TRANS object is empty (has no transaction started). sql/log.cc: Update a comment. sql/log_event.cc: Since now we commit/rollback statement transaction in mysql_execute_command(), we need a mechanism to communicate from Query_log_event::do_apply_event() to mysql_execute_command() that the statement transaction should be rolled back, not committed. Ideally it would be a virtual method of THD. I hesitate to make THD a virtual base class in this already large patch. Use a thd->variables.option_bits for now. Remove a call to close_thread_tables() from the slave IO thread. It doesn't open any tables, and the protocol for closing thread tables is more complicated now. Make sure we properly close thread tables, however, in Load_data_log_event, which doesn't follow the standard server execution procedure with mysql_execute_command(). @todo: this piece should use Server_runnable framework instead. Remove an unnecessary call to mysql_unlock_tables(). sql/rpl_rli.cc: Update Relay_log_info::slave_close_thread_tables() to follow the new close protocol. sql/set_var.cc: Remove an unused header. sql/slave.cc: Remove an unnecessary call to close_thread_tables(). sql/sp.cc: Remove unnecessary calls to close_thread_tables() from SP DDL implementation. The tables will be closed by the caller, in mysql_execute_command(). When dropping all routines in a database, make sure to not mistakenly drop all metadata locks acquired so far, they include the scoped lock on the schema. sql/sp_head.cc: Correct the protocol that closes thread tables in an SP instruction. Clear lex->sphead before cleaning up lex with lex_end to make sure that we don't delete the sphead twice. It's considered to be "cleaner" and more in line with future changes than calling delete lex->sphead in other places that cleanup the lex. sql/sp_head.h: When destroying m_lex_keeper of an instruction, don't delete the sphead that all lex objects share. @todo: don't store a reference to routine's sp_head instance in instruction's lex. sql/sql_acl.cc: Don't call close_thread_tables() where the caller will do that for us. Fix Bug#55452 "SET PASSWORD is replicated twice in RBR mode" by disabling RBR replication in change_password() function. Use close_mysql_tables() in bootstrap and ACL reload code to make sure we release all metadata locks. sql/sql_base.cc: This is the main part of the patch: - remove manipulation with thd->transaction and thd->mdl_context from close_thread_tables(). Now this function is only responsible for closing tables, nothing else. This is necessary to be able to easily use close_thread_tables() in procedures, that involve multiple open/close tables, which all need to be protected continuously by metadata locks. Add asserts ensuring that TABLE object is only used when is protected by a metadata lock. Simplify the back off condition of Open_table_context, we no longer need to look at the autocommit mode. Make open_and_lock_tables() and open_normal_and_derived_tables() close thread tables and release metadata locks acquired so-far upon failure. This simplifies their usage. Implement close_mysql_tables(). sql/sql_base.h: Add declaration for close_mysql_tables(). sql/sql_class.cc: Remove a piece of dead code that has also become redundant after the fix for Bug 37521. The code became dead when my_eof() was made a non-protocol method, but a method that merely modifies the diagnostics area. The code became redundant with the fix for Bug#37521, when we started to cal close_thread_tables() before Protocol::end_statement(). sql/sql_do.cc: Do nothing in DO if inside a substatement (the assert moved out of trans_rollback_stmt). sql/sql_handler.cc: Add comments. sql/sql_insert.cc: Remove dead code. Release metadata locks explicitly at the end of the delayed insert thread. sql/sql_lex.cc: Add destruction of lex->sphead to lex_end(), lex "reset" method called at the end of each statement. sql/sql_parse.cc: Move close_thread_tables() and other related cleanups to mysql_execute_command() from dispatch_command(). This has become possible after the fix for Bug#37521. Mark federated SERVER statements as DDL. Next step: make sure that we don't store eof packet in the query cache, and move the query cache code outside mysql_parse. Brush up the code of COM_FIELD_LIST. Remove unnecessary calls to close_thread_tables(). When killing a query, don't report "OK" if it was a suicide. sql/sql_parse.h: Remove declaration of a function that is now static. sql/sql_partition.cc: Remove an unnecessary call to close_thread_tables(). sql/sql_plugin.cc: open_and_lock_tables() will clean up after itself after a failure. Move close_thread_tables() above end: label, and replace with close_mysql_tables(), which will also release the metadata lock on mysql.plugin. sql/sql_prepare.cc: Now that we no longer release locks in close_thread_tables() statement prepare code has become more straightforward. Remove the now redundant check for thd->killed() (used only by the backup project) from Execute_server_runnable. Reorder code to take into account that now mysql_execute_command() performs lex->unit.cleanup() and close_thread_tables(). sql/sql_priv.h: Add a new option to server options to interact between the slave SQL thread and execution framework (hack). @todo: use a virtual method of class THD instead. sql/sql_servers.cc: Due to Bug 25705 replication of DROP/CREATE/ALTER SERVER is broken. Make sure at least we do not attempt to replicate these statements using RBR, as this violates the assert in close_mysql_tables(). sql/sql_table.cc: Do not release metadata locks in mysql_rm_table_part2, this is done by the caller. Do not call close_thread_tables() in mysql_create_table(), this is done by the caller. Fix a bug in DROP TABLE under LOCK TABLES when, upon error in wait_while_table_is_used() we would mistakenly release the metadata lock on a non-dropped table. Explicitly release metadata locks when doing an implicit commit. sql/sql_trigger.cc: Now that we delete lex->sphead in lex_end(), zero the trigger's sphead in lex after loading the trigger, to avoid double deletion. sql/sql_udf.cc: Use close_mysql_tables() instead of close_thread_tables(). sql/sys_vars.cc: Remove code added in scope of WL#4284 which would break when we perform set @@session.autocommit along with setting other variables and using tables or functions. A test case added to variables.test. sql/transaction.cc: Add asserts. sql/tztime.cc: Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 12:25:53 +02:00
event_table.init_one_table("mysql", 5, "event", 5, "event", TL_READ);
if (open_system_tables_for_read(thd, &event_table, &open_tables_backup))
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
DBUG_RETURN(TRUE);
2011-05-04 15:22:38 +02:00
if (table_intact.check(event_table.table, &event_table_def))
{
close_system_tables(thd, &open_tables_backup);
my_error(ER_EVENT_OPEN_TABLE_FAILED, MYF(0));
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
DBUG_RETURN(TRUE);
2011-05-04 15:22:38 +02:00
}
/*
1. SELECT I_S => use table scan. I_S.EVENTS does not guarantee order
thus we won't order it. OTOH, SHOW EVENTS will be
ordered.
2. SHOW EVENTS => PRIMARY KEY with prefix scanning on (db)
Reasoning: Events are per schema, therefore a scan over an index
will save use from doing a table scan and comparing
every single row's `db` with the schema which we show.
*/
if (db)
A pre-requisite patch for the fix for Bug#52044. This patch also fixes Bug#55452 "SET PASSWORD is replicated twice in RBR mode". The goal of this patch is to remove the release of metadata locks from close_thread_tables(). This is necessary to not mistakenly release the locks in the course of a multi-step operation that involves multiple close_thread_tables() or close_tables_for_reopen(). On the same token, move statement commit outside close_thread_tables(). Other cleanups: Cleanup COM_FIELD_LIST. Don't call close_thread_tables() in COM_SHUTDOWN -- there are no open tables there that can be closed (we leave the locked tables mode in THD destructor, and this close_thread_tables() won't leave it anyway). Make open_and_lock_tables() and open_and_lock_tables_derived() call close_thread_tables() upon failure. Remove the calls to close_thread_tables() that are now unnecessary. Simplify the back off condition in Open_table_context. Streamline metadata lock handling in LOCK TABLES implementation. Add asserts to ensure correct life cycle of statement transaction in a session. Remove a piece of dead code that has also become redundant after the fix for Bug 37521. mysql-test/r/variables.result: Update results: set @@autocommit and statement transaction/ prelocked mode. mysql-test/r/view.result: A harmless change in CHECK TABLE <view> status for a broken view. If previously a failure to prelock all functions used in a view would leave the connection in LTM_PRELOCKED mode, now we call close_thread_tables() from open_and_lock_tables() and leave prelocked mode, thus some check in mysql_admin_table() that works only in prelocked/locked tables mode is no longer activated. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Fixed Bug#55452 "SET PASSWORD is replicated twice in RBR mode": extra binlog events are gone from the binary log. mysql-test/t/variables.test: Add a test case: set autocommit and statement transaction/prelocked mode. sql/event_data_objects.cc: Simplify code in Event_job_data::execute(). Move sp_head memory management to lex_end(). sql/event_db_repository.cc: Move the release of metadata locks outside close_thread_tables(). Make sure we call close_thread_tables() when open_and_lock_tables() fails and remove extra code from the events data dictionary. Use close_mysql_tables(), a new internal function to properly close mysql.* tables in the data dictionary. Contract Event_db_repository::drop_events_by_field, drop_schema_events into one function. When dropping all events in a schema, make sure we don't mistakenly release all locks acquired by DROP DATABASE. These include locks on the database name and the global intention exclusive metadata lock. sql/event_db_repository.h: Function open_event_table() does not require an instance of Event_db_repository. sql/events.cc: Use close_mysql_tables() instead of close_thread_tables() to bootstrap events, since the latter no longer releases metadata locks. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 no longer releases acquired metadata locks. Do it in the caller. sql/ha_ndbcluster_binlog.cc: Deploy the new protocol for closing thread tables in run_query() and ndb_binlog_index code. sql/handler.cc: Assert that we never call ha_commit_trans/ ha_rollback_trans in sub-statement, which is now the case. sql/handler.h: Add an accessor to check whether THD_TRANS object is empty (has no transaction started). sql/log.cc: Update a comment. sql/log_event.cc: Since now we commit/rollback statement transaction in mysql_execute_command(), we need a mechanism to communicate from Query_log_event::do_apply_event() to mysql_execute_command() that the statement transaction should be rolled back, not committed. Ideally it would be a virtual method of THD. I hesitate to make THD a virtual base class in this already large patch. Use a thd->variables.option_bits for now. Remove a call to close_thread_tables() from the slave IO thread. It doesn't open any tables, and the protocol for closing thread tables is more complicated now. Make sure we properly close thread tables, however, in Load_data_log_event, which doesn't follow the standard server execution procedure with mysql_execute_command(). @todo: this piece should use Server_runnable framework instead. Remove an unnecessary call to mysql_unlock_tables(). sql/rpl_rli.cc: Update Relay_log_info::slave_close_thread_tables() to follow the new close protocol. sql/set_var.cc: Remove an unused header. sql/slave.cc: Remove an unnecessary call to close_thread_tables(). sql/sp.cc: Remove unnecessary calls to close_thread_tables() from SP DDL implementation. The tables will be closed by the caller, in mysql_execute_command(). When dropping all routines in a database, make sure to not mistakenly drop all metadata locks acquired so far, they include the scoped lock on the schema. sql/sp_head.cc: Correct the protocol that closes thread tables in an SP instruction. Clear lex->sphead before cleaning up lex with lex_end to make sure that we don't delete the sphead twice. It's considered to be "cleaner" and more in line with future changes than calling delete lex->sphead in other places that cleanup the lex. sql/sp_head.h: When destroying m_lex_keeper of an instruction, don't delete the sphead that all lex objects share. @todo: don't store a reference to routine's sp_head instance in instruction's lex. sql/sql_acl.cc: Don't call close_thread_tables() where the caller will do that for us. Fix Bug#55452 "SET PASSWORD is replicated twice in RBR mode" by disabling RBR replication in change_password() function. Use close_mysql_tables() in bootstrap and ACL reload code to make sure we release all metadata locks. sql/sql_base.cc: This is the main part of the patch: - remove manipulation with thd->transaction and thd->mdl_context from close_thread_tables(). Now this function is only responsible for closing tables, nothing else. This is necessary to be able to easily use close_thread_tables() in procedures, that involve multiple open/close tables, which all need to be protected continuously by metadata locks. Add asserts ensuring that TABLE object is only used when is protected by a metadata lock. Simplify the back off condition of Open_table_context, we no longer need to look at the autocommit mode. Make open_and_lock_tables() and open_normal_and_derived_tables() close thread tables and release metadata locks acquired so-far upon failure. This simplifies their usage. Implement close_mysql_tables(). sql/sql_base.h: Add declaration for close_mysql_tables(). sql/sql_class.cc: Remove a piece of dead code that has also become redundant after the fix for Bug 37521. The code became dead when my_eof() was made a non-protocol method, but a method that merely modifies the diagnostics area. The code became redundant with the fix for Bug#37521, when we started to cal close_thread_tables() before Protocol::end_statement(). sql/sql_do.cc: Do nothing in DO if inside a substatement (the assert moved out of trans_rollback_stmt). sql/sql_handler.cc: Add comments. sql/sql_insert.cc: Remove dead code. Release metadata locks explicitly at the end of the delayed insert thread. sql/sql_lex.cc: Add destruction of lex->sphead to lex_end(), lex "reset" method called at the end of each statement. sql/sql_parse.cc: Move close_thread_tables() and other related cleanups to mysql_execute_command() from dispatch_command(). This has become possible after the fix for Bug#37521. Mark federated SERVER statements as DDL. Next step: make sure that we don't store eof packet in the query cache, and move the query cache code outside mysql_parse. Brush up the code of COM_FIELD_LIST. Remove unnecessary calls to close_thread_tables(). When killing a query, don't report "OK" if it was a suicide. sql/sql_parse.h: Remove declaration of a function that is now static. sql/sql_partition.cc: Remove an unnecessary call to close_thread_tables(). sql/sql_plugin.cc: open_and_lock_tables() will clean up after itself after a failure. Move close_thread_tables() above end: label, and replace with close_mysql_tables(), which will also release the metadata lock on mysql.plugin. sql/sql_prepare.cc: Now that we no longer release locks in close_thread_tables() statement prepare code has become more straightforward. Remove the now redundant check for thd->killed() (used only by the backup project) from Execute_server_runnable. Reorder code to take into account that now mysql_execute_command() performs lex->unit.cleanup() and close_thread_tables(). sql/sql_priv.h: Add a new option to server options to interact between the slave SQL thread and execution framework (hack). @todo: use a virtual method of class THD instead. sql/sql_servers.cc: Due to Bug 25705 replication of DROP/CREATE/ALTER SERVER is broken. Make sure at least we do not attempt to replicate these statements using RBR, as this violates the assert in close_mysql_tables(). sql/sql_table.cc: Do not release metadata locks in mysql_rm_table_part2, this is done by the caller. Do not call close_thread_tables() in mysql_create_table(), this is done by the caller. Fix a bug in DROP TABLE under LOCK TABLES when, upon error in wait_while_table_is_used() we would mistakenly release the metadata lock on a non-dropped table. Explicitly release metadata locks when doing an implicit commit. sql/sql_trigger.cc: Now that we delete lex->sphead in lex_end(), zero the trigger's sphead in lex after loading the trigger, to avoid double deletion. sql/sql_udf.cc: Use close_mysql_tables() instead of close_thread_tables(). sql/sys_vars.cc: Remove code added in scope of WL#4284 which would break when we perform set @@session.autocommit along with setting other variables and using tables or functions. A test case added to variables.test. sql/transaction.cc: Add asserts. sql/tztime.cc: Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 12:25:53 +02:00
ret= index_read_for_db_for_i_s(thd, schema_table, event_table.table, db);
else
A pre-requisite patch for the fix for Bug#52044. This patch also fixes Bug#55452 "SET PASSWORD is replicated twice in RBR mode". The goal of this patch is to remove the release of metadata locks from close_thread_tables(). This is necessary to not mistakenly release the locks in the course of a multi-step operation that involves multiple close_thread_tables() or close_tables_for_reopen(). On the same token, move statement commit outside close_thread_tables(). Other cleanups: Cleanup COM_FIELD_LIST. Don't call close_thread_tables() in COM_SHUTDOWN -- there are no open tables there that can be closed (we leave the locked tables mode in THD destructor, and this close_thread_tables() won't leave it anyway). Make open_and_lock_tables() and open_and_lock_tables_derived() call close_thread_tables() upon failure. Remove the calls to close_thread_tables() that are now unnecessary. Simplify the back off condition in Open_table_context. Streamline metadata lock handling in LOCK TABLES implementation. Add asserts to ensure correct life cycle of statement transaction in a session. Remove a piece of dead code that has also become redundant after the fix for Bug 37521. mysql-test/r/variables.result: Update results: set @@autocommit and statement transaction/ prelocked mode. mysql-test/r/view.result: A harmless change in CHECK TABLE <view> status for a broken view. If previously a failure to prelock all functions used in a view would leave the connection in LTM_PRELOCKED mode, now we call close_thread_tables() from open_and_lock_tables() and leave prelocked mode, thus some check in mysql_admin_table() that works only in prelocked/locked tables mode is no longer activated. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Fixed Bug#55452 "SET PASSWORD is replicated twice in RBR mode": extra binlog events are gone from the binary log. mysql-test/t/variables.test: Add a test case: set autocommit and statement transaction/prelocked mode. sql/event_data_objects.cc: Simplify code in Event_job_data::execute(). Move sp_head memory management to lex_end(). sql/event_db_repository.cc: Move the release of metadata locks outside close_thread_tables(). Make sure we call close_thread_tables() when open_and_lock_tables() fails and remove extra code from the events data dictionary. Use close_mysql_tables(), a new internal function to properly close mysql.* tables in the data dictionary. Contract Event_db_repository::drop_events_by_field, drop_schema_events into one function. When dropping all events in a schema, make sure we don't mistakenly release all locks acquired by DROP DATABASE. These include locks on the database name and the global intention exclusive metadata lock. sql/event_db_repository.h: Function open_event_table() does not require an instance of Event_db_repository. sql/events.cc: Use close_mysql_tables() instead of close_thread_tables() to bootstrap events, since the latter no longer releases metadata locks. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 no longer releases acquired metadata locks. Do it in the caller. sql/ha_ndbcluster_binlog.cc: Deploy the new protocol for closing thread tables in run_query() and ndb_binlog_index code. sql/handler.cc: Assert that we never call ha_commit_trans/ ha_rollback_trans in sub-statement, which is now the case. sql/handler.h: Add an accessor to check whether THD_TRANS object is empty (has no transaction started). sql/log.cc: Update a comment. sql/log_event.cc: Since now we commit/rollback statement transaction in mysql_execute_command(), we need a mechanism to communicate from Query_log_event::do_apply_event() to mysql_execute_command() that the statement transaction should be rolled back, not committed. Ideally it would be a virtual method of THD. I hesitate to make THD a virtual base class in this already large patch. Use a thd->variables.option_bits for now. Remove a call to close_thread_tables() from the slave IO thread. It doesn't open any tables, and the protocol for closing thread tables is more complicated now. Make sure we properly close thread tables, however, in Load_data_log_event, which doesn't follow the standard server execution procedure with mysql_execute_command(). @todo: this piece should use Server_runnable framework instead. Remove an unnecessary call to mysql_unlock_tables(). sql/rpl_rli.cc: Update Relay_log_info::slave_close_thread_tables() to follow the new close protocol. sql/set_var.cc: Remove an unused header. sql/slave.cc: Remove an unnecessary call to close_thread_tables(). sql/sp.cc: Remove unnecessary calls to close_thread_tables() from SP DDL implementation. The tables will be closed by the caller, in mysql_execute_command(). When dropping all routines in a database, make sure to not mistakenly drop all metadata locks acquired so far, they include the scoped lock on the schema. sql/sp_head.cc: Correct the protocol that closes thread tables in an SP instruction. Clear lex->sphead before cleaning up lex with lex_end to make sure that we don't delete the sphead twice. It's considered to be "cleaner" and more in line with future changes than calling delete lex->sphead in other places that cleanup the lex. sql/sp_head.h: When destroying m_lex_keeper of an instruction, don't delete the sphead that all lex objects share. @todo: don't store a reference to routine's sp_head instance in instruction's lex. sql/sql_acl.cc: Don't call close_thread_tables() where the caller will do that for us. Fix Bug#55452 "SET PASSWORD is replicated twice in RBR mode" by disabling RBR replication in change_password() function. Use close_mysql_tables() in bootstrap and ACL reload code to make sure we release all metadata locks. sql/sql_base.cc: This is the main part of the patch: - remove manipulation with thd->transaction and thd->mdl_context from close_thread_tables(). Now this function is only responsible for closing tables, nothing else. This is necessary to be able to easily use close_thread_tables() in procedures, that involve multiple open/close tables, which all need to be protected continuously by metadata locks. Add asserts ensuring that TABLE object is only used when is protected by a metadata lock. Simplify the back off condition of Open_table_context, we no longer need to look at the autocommit mode. Make open_and_lock_tables() and open_normal_and_derived_tables() close thread tables and release metadata locks acquired so-far upon failure. This simplifies their usage. Implement close_mysql_tables(). sql/sql_base.h: Add declaration for close_mysql_tables(). sql/sql_class.cc: Remove a piece of dead code that has also become redundant after the fix for Bug 37521. The code became dead when my_eof() was made a non-protocol method, but a method that merely modifies the diagnostics area. The code became redundant with the fix for Bug#37521, when we started to cal close_thread_tables() before Protocol::end_statement(). sql/sql_do.cc: Do nothing in DO if inside a substatement (the assert moved out of trans_rollback_stmt). sql/sql_handler.cc: Add comments. sql/sql_insert.cc: Remove dead code. Release metadata locks explicitly at the end of the delayed insert thread. sql/sql_lex.cc: Add destruction of lex->sphead to lex_end(), lex "reset" method called at the end of each statement. sql/sql_parse.cc: Move close_thread_tables() and other related cleanups to mysql_execute_command() from dispatch_command(). This has become possible after the fix for Bug#37521. Mark federated SERVER statements as DDL. Next step: make sure that we don't store eof packet in the query cache, and move the query cache code outside mysql_parse. Brush up the code of COM_FIELD_LIST. Remove unnecessary calls to close_thread_tables(). When killing a query, don't report "OK" if it was a suicide. sql/sql_parse.h: Remove declaration of a function that is now static. sql/sql_partition.cc: Remove an unnecessary call to close_thread_tables(). sql/sql_plugin.cc: open_and_lock_tables() will clean up after itself after a failure. Move close_thread_tables() above end: label, and replace with close_mysql_tables(), which will also release the metadata lock on mysql.plugin. sql/sql_prepare.cc: Now that we no longer release locks in close_thread_tables() statement prepare code has become more straightforward. Remove the now redundant check for thd->killed() (used only by the backup project) from Execute_server_runnable. Reorder code to take into account that now mysql_execute_command() performs lex->unit.cleanup() and close_thread_tables(). sql/sql_priv.h: Add a new option to server options to interact between the slave SQL thread and execution framework (hack). @todo: use a virtual method of class THD instead. sql/sql_servers.cc: Due to Bug 25705 replication of DROP/CREATE/ALTER SERVER is broken. Make sure at least we do not attempt to replicate these statements using RBR, as this violates the assert in close_mysql_tables(). sql/sql_table.cc: Do not release metadata locks in mysql_rm_table_part2, this is done by the caller. Do not call close_thread_tables() in mysql_create_table(), this is done by the caller. Fix a bug in DROP TABLE under LOCK TABLES when, upon error in wait_while_table_is_used() we would mistakenly release the metadata lock on a non-dropped table. Explicitly release metadata locks when doing an implicit commit. sql/sql_trigger.cc: Now that we delete lex->sphead in lex_end(), zero the trigger's sphead in lex after loading the trigger, to avoid double deletion. sql/sql_udf.cc: Use close_mysql_tables() instead of close_thread_tables(). sql/sys_vars.cc: Remove code added in scope of WL#4284 which would break when we perform set @@session.autocommit along with setting other variables and using tables or functions. A test case added to variables.test. sql/transaction.cc: Add asserts. sql/tztime.cc: Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 12:25:53 +02:00
ret= table_scan_all_for_i_s(thd, schema_table, event_table.table);
A pre-requisite patch for the fix for Bug#52044. This patch also fixes Bug#55452 "SET PASSWORD is replicated twice in RBR mode". The goal of this patch is to remove the release of metadata locks from close_thread_tables(). This is necessary to not mistakenly release the locks in the course of a multi-step operation that involves multiple close_thread_tables() or close_tables_for_reopen(). On the same token, move statement commit outside close_thread_tables(). Other cleanups: Cleanup COM_FIELD_LIST. Don't call close_thread_tables() in COM_SHUTDOWN -- there are no open tables there that can be closed (we leave the locked tables mode in THD destructor, and this close_thread_tables() won't leave it anyway). Make open_and_lock_tables() and open_and_lock_tables_derived() call close_thread_tables() upon failure. Remove the calls to close_thread_tables() that are now unnecessary. Simplify the back off condition in Open_table_context. Streamline metadata lock handling in LOCK TABLES implementation. Add asserts to ensure correct life cycle of statement transaction in a session. Remove a piece of dead code that has also become redundant after the fix for Bug 37521. mysql-test/r/variables.result: Update results: set @@autocommit and statement transaction/ prelocked mode. mysql-test/r/view.result: A harmless change in CHECK TABLE <view> status for a broken view. If previously a failure to prelock all functions used in a view would leave the connection in LTM_PRELOCKED mode, now we call close_thread_tables() from open_and_lock_tables() and leave prelocked mode, thus some check in mysql_admin_table() that works only in prelocked/locked tables mode is no longer activated. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Fixed Bug#55452 "SET PASSWORD is replicated twice in RBR mode": extra binlog events are gone from the binary log. mysql-test/t/variables.test: Add a test case: set autocommit and statement transaction/prelocked mode. sql/event_data_objects.cc: Simplify code in Event_job_data::execute(). Move sp_head memory management to lex_end(). sql/event_db_repository.cc: Move the release of metadata locks outside close_thread_tables(). Make sure we call close_thread_tables() when open_and_lock_tables() fails and remove extra code from the events data dictionary. Use close_mysql_tables(), a new internal function to properly close mysql.* tables in the data dictionary. Contract Event_db_repository::drop_events_by_field, drop_schema_events into one function. When dropping all events in a schema, make sure we don't mistakenly release all locks acquired by DROP DATABASE. These include locks on the database name and the global intention exclusive metadata lock. sql/event_db_repository.h: Function open_event_table() does not require an instance of Event_db_repository. sql/events.cc: Use close_mysql_tables() instead of close_thread_tables() to bootstrap events, since the latter no longer releases metadata locks. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 no longer releases acquired metadata locks. Do it in the caller. sql/ha_ndbcluster_binlog.cc: Deploy the new protocol for closing thread tables in run_query() and ndb_binlog_index code. sql/handler.cc: Assert that we never call ha_commit_trans/ ha_rollback_trans in sub-statement, which is now the case. sql/handler.h: Add an accessor to check whether THD_TRANS object is empty (has no transaction started). sql/log.cc: Update a comment. sql/log_event.cc: Since now we commit/rollback statement transaction in mysql_execute_command(), we need a mechanism to communicate from Query_log_event::do_apply_event() to mysql_execute_command() that the statement transaction should be rolled back, not committed. Ideally it would be a virtual method of THD. I hesitate to make THD a virtual base class in this already large patch. Use a thd->variables.option_bits for now. Remove a call to close_thread_tables() from the slave IO thread. It doesn't open any tables, and the protocol for closing thread tables is more complicated now. Make sure we properly close thread tables, however, in Load_data_log_event, which doesn't follow the standard server execution procedure with mysql_execute_command(). @todo: this piece should use Server_runnable framework instead. Remove an unnecessary call to mysql_unlock_tables(). sql/rpl_rli.cc: Update Relay_log_info::slave_close_thread_tables() to follow the new close protocol. sql/set_var.cc: Remove an unused header. sql/slave.cc: Remove an unnecessary call to close_thread_tables(). sql/sp.cc: Remove unnecessary calls to close_thread_tables() from SP DDL implementation. The tables will be closed by the caller, in mysql_execute_command(). When dropping all routines in a database, make sure to not mistakenly drop all metadata locks acquired so far, they include the scoped lock on the schema. sql/sp_head.cc: Correct the protocol that closes thread tables in an SP instruction. Clear lex->sphead before cleaning up lex with lex_end to make sure that we don't delete the sphead twice. It's considered to be "cleaner" and more in line with future changes than calling delete lex->sphead in other places that cleanup the lex. sql/sp_head.h: When destroying m_lex_keeper of an instruction, don't delete the sphead that all lex objects share. @todo: don't store a reference to routine's sp_head instance in instruction's lex. sql/sql_acl.cc: Don't call close_thread_tables() where the caller will do that for us. Fix Bug#55452 "SET PASSWORD is replicated twice in RBR mode" by disabling RBR replication in change_password() function. Use close_mysql_tables() in bootstrap and ACL reload code to make sure we release all metadata locks. sql/sql_base.cc: This is the main part of the patch: - remove manipulation with thd->transaction and thd->mdl_context from close_thread_tables(). Now this function is only responsible for closing tables, nothing else. This is necessary to be able to easily use close_thread_tables() in procedures, that involve multiple open/close tables, which all need to be protected continuously by metadata locks. Add asserts ensuring that TABLE object is only used when is protected by a metadata lock. Simplify the back off condition of Open_table_context, we no longer need to look at the autocommit mode. Make open_and_lock_tables() and open_normal_and_derived_tables() close thread tables and release metadata locks acquired so-far upon failure. This simplifies their usage. Implement close_mysql_tables(). sql/sql_base.h: Add declaration for close_mysql_tables(). sql/sql_class.cc: Remove a piece of dead code that has also become redundant after the fix for Bug 37521. The code became dead when my_eof() was made a non-protocol method, but a method that merely modifies the diagnostics area. The code became redundant with the fix for Bug#37521, when we started to cal close_thread_tables() before Protocol::end_statement(). sql/sql_do.cc: Do nothing in DO if inside a substatement (the assert moved out of trans_rollback_stmt). sql/sql_handler.cc: Add comments. sql/sql_insert.cc: Remove dead code. Release metadata locks explicitly at the end of the delayed insert thread. sql/sql_lex.cc: Add destruction of lex->sphead to lex_end(), lex "reset" method called at the end of each statement. sql/sql_parse.cc: Move close_thread_tables() and other related cleanups to mysql_execute_command() from dispatch_command(). This has become possible after the fix for Bug#37521. Mark federated SERVER statements as DDL. Next step: make sure that we don't store eof packet in the query cache, and move the query cache code outside mysql_parse. Brush up the code of COM_FIELD_LIST. Remove unnecessary calls to close_thread_tables(). When killing a query, don't report "OK" if it was a suicide. sql/sql_parse.h: Remove declaration of a function that is now static. sql/sql_partition.cc: Remove an unnecessary call to close_thread_tables(). sql/sql_plugin.cc: open_and_lock_tables() will clean up after itself after a failure. Move close_thread_tables() above end: label, and replace with close_mysql_tables(), which will also release the metadata lock on mysql.plugin. sql/sql_prepare.cc: Now that we no longer release locks in close_thread_tables() statement prepare code has become more straightforward. Remove the now redundant check for thd->killed() (used only by the backup project) from Execute_server_runnable. Reorder code to take into account that now mysql_execute_command() performs lex->unit.cleanup() and close_thread_tables(). sql/sql_priv.h: Add a new option to server options to interact between the slave SQL thread and execution framework (hack). @todo: use a virtual method of class THD instead. sql/sql_servers.cc: Due to Bug 25705 replication of DROP/CREATE/ALTER SERVER is broken. Make sure at least we do not attempt to replicate these statements using RBR, as this violates the assert in close_mysql_tables(). sql/sql_table.cc: Do not release metadata locks in mysql_rm_table_part2, this is done by the caller. Do not call close_thread_tables() in mysql_create_table(), this is done by the caller. Fix a bug in DROP TABLE under LOCK TABLES when, upon error in wait_while_table_is_used() we would mistakenly release the metadata lock on a non-dropped table. Explicitly release metadata locks when doing an implicit commit. sql/sql_trigger.cc: Now that we delete lex->sphead in lex_end(), zero the trigger's sphead in lex after loading the trigger, to avoid double deletion. sql/sql_udf.cc: Use close_mysql_tables() instead of close_thread_tables(). sql/sys_vars.cc: Remove code added in scope of WL#4284 which would break when we perform set @@session.autocommit along with setting other variables and using tables or functions. A test case added to variables.test. sql/transaction.cc: Add asserts. sql/tztime.cc: Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 12:25:53 +02:00
close_system_tables(thd, &open_tables_backup);
DBUG_PRINT("info", ("Return code=%d", ret));
DBUG_RETURN(ret);
}
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
/**
Open mysql.event table for read.
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
It's assumed that the caller knows what they are doing:
- whether it was necessary to reset-and-backup the open tables state
- whether the requested lock does not lead to a deadlock
- whether this open mode would work under LOCK TABLES, or inside a
stored function or trigger.
Patch for BUG#31111: --read-only crashes MySQL (events fail to load). There actually were several problems here: - WRITE-lock is required to load events from the mysql.event table, but in the read-only mode an ordinary user can not acquire it; - Security_context::master_access attribute was not properly initialized in Security_context::init(), which led to differences in behavior with and without debug configure options. - if the server failed to load events from mysql.event, it forgot to close the mysql.event table, that led to the coredump, described in the bug report. The patch is to fix all these problems: - Use the super-user to acquire WRITE-lock on the mysql.even table; - The WRITE-lock is acquired by the event scheduler in two cases: - on initial loading of events from the database; - when an event has been executed, so its attributes should be updated. Other cases when WRITE-lock is needed for the mysql.event table happen under the user account. So, nothing should be changed there for the read-only mode. The user is able to create/update/drop an event only if he is a super-user. - Initialize Security_context::master_access; - Close the mysql.event table in case something went wrong. mysql-test/r/events_bugs.result: Update result file. mysql-test/t/events_bugs.test: A test case for BUG#31111: --read-only crashes MySQL (events fail to load). sql/event_data_objects.cc: When the worker thread is going to drop event after the execution we should do it under the super-user privileges in order to be able to lock the mysql.event table for writing in the read-only mode. This is a system operation, where user SQL can not be executed. So, there is no risk in compromising security by dropping an event under the super-user privileges. sql/event_db_repository.cc: 1. Close tables if something went wrong in simple_open_n_lock_tables(); 2. As soon as the system event scheduler thread is running under the super-user privileges, we should always be able to acquire WRITE-lock on the mysql.event table. However, let's have an assert to check this. sql/event_scheduler.cc: Run the system event scheduler thread under the super-user privileges. In particular, this is needed to be able to lock the mysql.event table for writing when the server is running in the read-only mode. The event scheduler executes only system operations and does not execute user SQL (this is what the worker threads for). So, there is no risk in compromising security by running the event scheduler under the super-user privileges. sql/events.cc: Open the mysql.event table as the super user to be able to acquire WRITE-lock in the read-only mode. sql/sql_class.cc: Initialize Security_context::master_acces.
2007-10-19 17:57:08 +02:00
Note that if the table can't be locked successfully this operation will
close it. Therefore it provides guarantee that it either opens and locks
table or fails without leaving any tables open.
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
@param[in] thd Thread context
@param[in] lock_type How to lock the table
@param[out] table We will store the open table here
@retval TRUE open and lock failed - an error message is pushed into the
stack
@retval FALSE success
*/
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
bool
Event_db_repository::open_event_table(THD *thd, enum thr_lock_type lock_type,
TABLE **table)
{
TABLE_LIST tables;
DBUG_ENTER("Event_db_repository::open_event_table");
tables.init_one_table("mysql", 5, "event", 5, "event", lock_type);
if (open_and_lock_tables(thd, &tables, FALSE, MYSQL_LOCK_IGNORE_TIMEOUT))
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
DBUG_RETURN(TRUE);
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
*table= tables.table;
tables.table->use_all_columns();
if (table_intact.check(*table, &event_table_def))
{
close_thread_tables(thd);
my_error(ER_EVENT_OPEN_TABLE_FAILED, MYF(0));
DBUG_RETURN(TRUE);
}
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
DBUG_RETURN(FALSE);
}
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
/**
Creates an event record in mysql.event table.
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
Creates an event. Relies on mysql_event_fill_row which is shared with
::update_event.
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
@pre All semantic checks must be performed outside. This function
only creates a record on disk.
@pre The thread handle has no open tables.
Fixed bug#12546938 (formerly known as 61005) - CREATE IF NOT EXIST EVENT will create multiple running events. A CREATE IF NOT EXIST on an event that existed and was enabled caused multiple instances of the event to run. Disabling the event didn't help. If the event was dropped, the event stopped running, but when created again, multiple instances of the event were still running. The only way to get out of this situation was to restart the server. The problem was that Event_db_repository::create_event() didn't return enough information to discriminate between situation when event didn't exist and was created and when event did exist and was not created (but a warning was emitted). As result in the latter case event was added to in-memory queue of events second time. And this led to unwarranted multiple executions of the same event. The solution is to add out-parameter to Event_db_repository::create_event() method which will signal that event was not created because it already exists and so it should not be added to the in-memory queue. mysql-test/r/events_bugs.result: Added results for test for Bug#12546938. mysql-test/t/events_bugs.test: Added test for Bug#12546938. sql/event_db_repository.cc: Event_db_repository::create_event was modified: set newly added out-parameter event_already_exists to true value if event wasn't created because event already existed and IF NOT EXIST clause was present. sql/event_db_repository.h: Added out-parameter 'event_already_exists' to create_event() method. sql/events.cc: Events::create_event was modified: insert new element into event queue only if event was actually created.
2011-05-27 11:23:08 +02:00
@param[in,out] thd THD
@param[in] parse_data Parsed event definition
@param[in] create_if_not TRUE if IF NOT EXISTS clause was provided
to CREATE EVENT statement
@param[out] event_already_exists When method is completed successfully
set to true if event already exists else
set to false
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
@retval FALSE success
@retval TRUE error
*/
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
bool
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
Event_db_repository::create_event(THD *thd, Event_parse_data *parse_data,
Fixed bug#12546938 (formerly known as 61005) - CREATE IF NOT EXIST EVENT will create multiple running events. A CREATE IF NOT EXIST on an event that existed and was enabled caused multiple instances of the event to run. Disabling the event didn't help. If the event was dropped, the event stopped running, but when created again, multiple instances of the event were still running. The only way to get out of this situation was to restart the server. The problem was that Event_db_repository::create_event() didn't return enough information to discriminate between situation when event didn't exist and was created and when event did exist and was not created (but a warning was emitted). As result in the latter case event was added to in-memory queue of events second time. And this led to unwarranted multiple executions of the same event. The solution is to add out-parameter to Event_db_repository::create_event() method which will signal that event was not created because it already exists and so it should not be added to the in-memory queue. mysql-test/r/events_bugs.result: Added results for test for Bug#12546938. mysql-test/t/events_bugs.test: Added test for Bug#12546938. sql/event_db_repository.cc: Event_db_repository::create_event was modified: set newly added out-parameter event_already_exists to true value if event wasn't created because event already existed and IF NOT EXIST clause was present. sql/event_db_repository.h: Added out-parameter 'event_already_exists' to create_event() method. sql/events.cc: Events::create_event was modified: insert new element into event queue only if event was actually created.
2011-05-27 11:23:08 +02:00
bool *event_already_exists)
{
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
int ret= 1;
WL#3337 (Events new architecture) Small updates before patch submit. client/mysqltest.c: allow --valgrind option to mysqltest so one can be able to detect whether the test is running under valgrind by having $VALGRIND_TEST, similar to BIG_TEST, in the test file. mysql-test/mysql-test-run.pl: If the test suite is running under valgrind start mysqltest with --valgrind to inform that we run valgrind. mysqltest will provide $VALGRIND_TEST for the test cases. mysql-test/r/events_bugs.result: update result mysql-test/r/events_scheduling.result: update result mysql-test/t/events.test: Increase times or the test will fail under valgrind mysql-test/t/events_bugs.test: Increase times or the test will fail under valgrind mysql-test/t/events_scheduling.test: Remove faulty test Disable the test case for valgrind sql/event_data_objects.cc: count the number of executions sql/event_data_objects.h: flags is not used at all add execution_count to count the number of executions sql/event_db_repository.cc: Initialize wherever needed. Add a comment regarding valgrind warning. sql/event_queue.cc: more debug info in the trace log sql/event_scheduler.cc: Use macro COND_STATE_WAIT() in all cases we need waiting on condition. Hence, we can trace locking, attemption to lock and more with SHOW SCHEDULER STATUS sql/event_scheduler.h: Change the declaration of cond_wait to accept THD sql/events.cc: fix memory leak. Destroy event_queue mysql-test/include/not_valgrind.inc: New BitKeeper file ``mysql-test/include/not_valgrind.inc'' mysql-test/r/not_valgrind.require: New BitKeeper file ``mysql-test/r/not_valgrind.require''
2006-07-17 16:52:45 +02:00
TABLE *table= NULL;
sp_head *sp= thd->lex->sphead;
2011-11-02 12:55:46 +01:00
ulonglong saved_mode= thd->variables.sql_mode;
Patch that refactors global read lock implementation and fixes bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK" and bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'". The first bug manifested itself as a deadlock which occurred when a connection, which had some table open through HANDLER statement, tried to update some data through DML statement while another connection tried to execute FLUSH TABLES WITH READ LOCK concurrently. What happened was that FTWRL in the second connection managed to perform first step of GRL acquisition and thus blocked all upcoming DML. After that it started to wait for table open through HANDLER statement to be flushed. When the first connection tried to execute DML it has started to wait for GRL/the second connection creating deadlock. The second bug manifested itself as starvation of FLUSH TABLES WITH READ LOCK statements in cases when there was a constant stream of concurrent DML statements (in two or more connections). This has happened because requests for protection against GRL which were acquired by DML statements were ignoring presence of pending GRL and thus the latter was starved. This patch solves both these problems by re-implementing GRL using metadata locks. Similar to the old implementation acquisition of GRL in new implementation is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. The first problem is solved because waits for GRL become visible to deadlock detector in metadata locking subsystem and thus deadlocks like one in the first bug become impossible. The second problem is solved because global S locks which are used for GRL implementation are given preference over IX locks which are acquired by concurrent DML (and we can switch to fair scheduling in future if needed). Important change: FTWRL/GRL no longer blocks DML and DDL on temporary tables. Before this patch behavior was not consistent in this respect: in some cases DML/DDL statements on temporary tables were blocked while in others they were not. Since the main use cases for FTWRL are various forms of backups and temporary tables are not preserved during backups we have opted for consistently allowing DML/DDL on temporary tables during FTWRL/GRL. Important change: This patch changes thread state names which are used when DML/DDL of FTWRL is waiting for global read lock. It is now either "Waiting for global read lock" or "Waiting for commit lock" depending on the stage on which FTWRL is. Incompatible change: To solve deadlock in events code which was exposed by this patch we have to replace LOCK_event_metadata mutex with metadata locks on events. As result we have to prohibit DDL on events under LOCK TABLES. This patch also adds extensive test coverage for interaction of DML/DDL and FTWRL. Performance of new and old global read lock implementations in sysbench tests were compared. There were no significant difference between new and old implementations. mysql-test/include/check_ftwrl_compatible.inc: Added helper script which allows to check that a statement is compatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/check_ftwrl_incompatible.inc: Added helper script which allows to check that a statement is incompatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/handler.inc: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/include/wait_show_condition.inc: Fixed small error in the timeout message. The correct name of variable used as parameter for this script is "$condition" and not "$wait_condition". mysql-test/r/delayed.result: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/r/events_2.result: Updated test results after prohibiting event DDL operations under LOCK TABLES. mysql-test/r/flush.result: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/r/flush_read_lock.result: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/r/flush_read_lock_kill.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/r/handler_innodb.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/handler_myisam.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/mdl_sync.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. mysql-test/suite/perfschema/r/dml_setup_instruments.result: Updated test results after removing global COND_global_read_lock condition variable. mysql-test/suite/perfschema/r/func_file_io.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/func_mutex.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/global_read_lock.result: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/r/server_init.result: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/perfschema/t/func_file_io.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/func_mutex.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/global_read_lock.test: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/t/server_init.test: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/rpl/r/rpl_tmp_table_and_DDL.result: Updated test results after prohibiting event DDL under LOCK TABLES. mysql-test/t/delayed.test: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/t/events_2.test: Updated test case after prohibiting event DDL operations under LOCK TABLES. mysql-test/t/flush.test: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/t/flush_block_commit.test: Adjusted test case after changing thread state name which is used when COMMIT waits for FLUSH TABLES WITH READ LOCK from "Waiting for release of readlock" to "Waiting for commit lock". mysql-test/t/flush_block_commit_notembedded.test: Adjusted test case after changing thread state name which is used when DML waits for FLUSH TABLES WITH READ LOCK. Now we use "Waiting for global read lock" in this case. mysql-test/t/flush_read_lock.test: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/t/flush_read_lock_kill-master.opt: We no longer need to use make_global_read_lock_block_commit_loop debug tag in this test. Instead we rely on an appropriate debug_sync point in MDL code. mysql-test/t/flush_read_lock_kill.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/t/lock_multi.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". mysql-test/t/mdl_sync.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. Updated thread state names which are used when DDL waits for FTWRL. mysql-test/t/trigger_notembedded.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". sql/event_data_objects.cc: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_data_objects.h: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_db_repository.cc: - Changed Event_db_repository methods to not release all metadata locks once they are done updating mysql.events table. This allows to keep metadata lock protecting against GRL and lock protecting particular event around until corresponding DDL statement is written to the binary log. - Removed logic for conditional update of "status" and "last_executed" fields from update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" is too much hassle. sql/event_db_repository.h: Removed logic for conditional update of "status" and "last_executed" fields from Event_db_repository:: update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" field is too much hassle. sql/event_queue.cc: Changed event scheduler code not to update mysql.events table while holding Event_queue::LOCK_event_queue mutex. Doing so led to a deadlock with a new GRL implementation. This deadlock didn't occur with old implementation due to fact that code acquiring protection against GRL ignored pending GRL requests (which lead to GRL starvation). One of goals of new implementation is to disallow GRL starvation and so we have to solve problem with this deadlock in a different way. sql/events.cc: Changed methods of Events class to acquire protection against GRL while perfoming DDL statement and keep it until statement is written to the binary log. Unfortunately this step together with new GRL implementation exposed deadlock involving Events::LOCK_event_metadata and GRL. To solve it Events::LOCK_event_metadata mutex was replaced with a metadata lock on event. As a side-effect events DDL has to be prohibited under LOCK TABLES even in cases when mysql.events table was explicitly locked for write. sql/events.h: Replaced Events::LOCK_event_metadata mutex with a metadata lock on event. sql/ha_ndbcluster.cc: Updated code after replacing custom global read lock implementation with one based on MDL. Since MDL subsystem should now be able to detect deadlocks involving metadata locks and GRL there is no need for special handling of active GRL. sql/handler.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. sql/lock.cc: Replaced custom implementation of global read lock with one based on metadata locks. This step allows to expose wait for GRL to deadlock detector of MDL subsystem and thus succesfully resolve deadlocks similar to one behind bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". It also solves problem with GRL starvation described in bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'" since metadata locks used by GRL give preference to FTWRL statement instead of DML statements (if needed in future this can be changed to fair scheduling). Similar to old implementation of acquisition of GRL is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. To support this change: - Global_read_lock::lock/unlock_global_read_lock and make_global_read_lock_block_commit methods were changed accordingly. - Global_read_lock::wait_if_global_read_lock() and start_waiting_global_read_lock() methods were dropped. It is now responsibility of code acquiring metadata locks opening tables to acquire protection against GRL by explicitly taking global IX lock with statement duration. - Global variables, mutex and condition variable used by old implementation was removed. - lock_routine_name() was changed to use statement duration for its global IX lock. It was also renamed to lock_object_name() as it now also used to take metadata locks on events. - Global_read_lock::set_explicit_lock_duration() was added which allows not to release locks used for GRL when leaving prelocked mode. sql/lock.h: - Renamed lock_routine_name() to lock_object_name() and changed its signature to allow its usage for events. - Removed broadcast_refresh() function. It is no longer needed with new GRL implementation. sql/log_event.cc: Release metadata locks with statement duration at the end of processing legacy event for LOAD DATA. This ensures that replication thread processing such event properly releases its protection against global read lock. sql/mdl.cc: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Changed thread state name for GLOBAL namespace to "Waiting for global read lock". Optimized MDL_map::find_or_insert() method to avoid taking m_mutex mutex when looking up MDL_lock objects for GLOBAL or COMMIT namespaces. We keep pre-created MDL_lock objects for these namespaces around and simply return pointers to these global objects when needed. Changed MDL_lock/MDL_scoped_lock to properly handle notification of insert delayed handler threads when FTWRL takes global S lock. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mdl.h: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mysqld.cc: Removed global mutex and condition variables which were used by old implementation of GRL. Also we no longer need to initialize Events::LOCK_event_metadata mutex as it was replaced with metadata locks on events. sql/mysqld.h: Removed global variable, mutex and condition variables which were used by old implementation of GRL. sql/rpl_rli.cc: When slave thread closes tables which were open for handling of RBR events ensure that it releases global IX lock which was acquired as protection against GRL. sql/sp.cc: Adjusted code to the new signature of lock_object/routine_name(), to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sp_head.cc: Ensure that statements in stored procedures release statement metadata locks and thus release their protectiong against GRL in proper moment in time. Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_admin.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_base.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. Code doing this also responsible for checking that current connection has no active GRL by calling an Global_read_lock::can_acquire_protection() method. Changed code in open_table() and lock_table_names() accordingly. Note that as result of this change DDL and DML on temporary tables is always compatible with GRL (before it was incompatible in some cases and compatible in other cases). - To speed-up code acquiring protection against GRL introduced m_has_protection_against_grl member in Open_table_context class. It indicates that protection was already acquired sometime during open_tables() execution and new attempts can be skipped. - Thanks to new GRL implementation calls to broadcast_refresh() became unnecessary and were removed. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_base.h: Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. Also introduced Open_table_context::m_has_protection_against_grl member which allows to avoid acquiring protection against GRL while opening tables if such protection was already acquired. sql/sql_class.cc: Changed THD::leave_locked_tables_mode() after transactional sentinel for metadata locks was obsoleted by introduction of locks with explicit duration. sql/sql_class.h: - Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. - Changed Global_read_lock class according to changes in global read lock implementation: * wait_if_global_read_lock and start_waiting_global_read_lock are now gone. Instead code needing protection against GRL has to acquire global IX metadata lock with statement duration itself. To help it new can_acquire_protection() was introduced. Also as result of the above change m_protection_count member is gone too. * Added m_mdl_blocks_commits_lock member to store metadata lock blocking commits. * Adjusted code to the fact that concept of transactional sentinel was obsoleted by concept of lock duration. - Removed CF_PROTECT_AGAINST_GRL flag as it is no longer necessary. New GRL implementation acquires protection against global read lock automagically when statement acquires metadata locks on tables or other objects it is going to change. sql/sql_db.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_handler.cc: Removed call to broadcast_refresh() function. It is no longer needed with new GRL implementation. Adjusted code after introducing duration concept for metadata locks. Particularly to the fact transactional sentinel was replaced with explicit duration. sql/sql_handler.h: Renamed mysql_ha_move_tickets_after_trans_sentinel() to mysql_ha_set_explicit_lock_duration() after transactional sentinel was obsoleted by locks with explicit duration. sql/sql_insert.cc: Adjusted code handling delaying inserts after switching to new GRL implementation. Now connection thread initiating delayed insert has to acquire global IX lock in addition to metadata lock on table being inserted into. This IX lock protects against GRL and similarly to SW lock on table being inserted into has to be passed to handler thread in order to avoid deadlocks. sql/sql_lex.cc: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_lex.h: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_parse.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. This lock is automatically released at the end of statement execution. - Changed implementation of CREATE/DROP PROCEDURE/FUNCTION not to release metadata locks and thus protection against of GRL in the middle of statement execution. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_prepare.cc: Adjusted code to the to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_rename.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before renaming tables. This happens automatically in code which acquires metadata locks on tables being renamed. sql/sql_show.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_table.cc: - With new GRL implementation there is no need to explicitly acquire protection against GRL before dropping tables. This happens automatically in code which acquires metadata locks on tables being dropped. - Changed mysql_alter_table() not to release lock on new table name explicitly and to rely on automatic release of locks at the end of statement instead. This was necessary since now MDL_context::release_lock() is supported only for locks for explicit duration. sql/sql_trigger.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before changing table triggers. This happens automatically in code which acquires metadata locks on tables which triggers are to be changed. sql/sql_update.cc: Fix bug exposed by GRL testing. During prepare phase acquire only S metadata locks instead of SW locks to keep prepare of multi-UPDATE compatible with concurrent LOCK TABLES WRITE and global read lock. sql/sql_view.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before creating view. This happens automatically in code which acquires metadata lock on view to be created. sql/sql_yacc.yy: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/table.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/table.h: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/transaction.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. Also adjusted code to the fact that MDL savepoint is now represented by MDL_savepoint class.
2010-11-11 18:11:05 +01:00
/*
Take a savepoint to release only the lock on mysql.event
table at the end but keep the global read lock and
possible other locks taken by the caller.
*/
MDL_savepoint mdl_savepoint= thd->mdl_context.mdl_savepoint();
DBUG_ENTER("Event_db_repository::create_event");
DBUG_PRINT("info", ("open mysql.event for update"));
DBUG_ASSERT(sp);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
/* Reset sql_mode during data dictionary operations. */
thd->variables.sql_mode= 0;
if (open_event_table(thd, TL_WRITE, &table))
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
goto end;
WL#3817: Simplify string / memory area types and make things more consistent (first part) The following type conversions was done: - Changed byte to uchar - Changed gptr to uchar* - Change my_string to char * - Change my_size_t to size_t - Change size_s to size_t Removed declaration of byte, gptr, my_string, my_size_t and size_s. Following function parameter changes was done: - All string functions in mysys/strings was changed to use size_t instead of uint for string lengths. - All read()/write() functions changed to use size_t (including vio). - All protocoll functions changed to use size_t instead of uint - Functions that used a pointer to a string length was changed to use size_t* - Changed malloc(), free() and related functions from using gptr to use void * as this requires fewer casts in the code and is more in line with how the standard functions work. - Added extra length argument to dirname_part() to return the length of the created string. - Changed (at least) following functions to take uchar* as argument: - db_dump() - my_net_write() - net_write_command() - net_store_data() - DBUG_DUMP() - decimal2bin() & bin2decimal() - Changed my_compress() and my_uncompress() to use size_t. Changed one argument to my_uncompress() from a pointer to a value as we only return one value (makes function easier to use). - Changed type of 'pack_data' argument to packfrm() to avoid casts. - Changed in readfrm() and writefrom(), ha_discover and handler::discover() the type for argument 'frmdata' to uchar** to avoid casts. - Changed most Field functions to use uchar* instead of char* (reduced a lot of casts). - Changed field->val_xxx(xxx, new_ptr) to take const pointers. Other changes: - Removed a lot of not needed casts - Added a few new cast required by other changes - Added some cast to my_multi_malloc() arguments for safety (as string lengths needs to be uint, not size_t). - Fixed all calls to hash-get-key functions to use size_t*. (Needed to be done explicitely as this conflict was often hided by casting the function to hash_get_key). - Changed some buffers to memory regions to uchar* to avoid casts. - Changed some string lengths from uint to size_t. - Changed field->ptr to be uchar* instead of char*. This allowed us to get rid of a lot of casts. - Some changes from true -> TRUE, false -> FALSE, unsigned char -> uchar - Include zlib.h in some files as we needed declaration of crc32() - Changed MY_FILE_ERROR to be (size_t) -1. - Changed many variables to hold the result of my_read() / my_write() to be size_t. This was needed to properly detect errors (which are returned as (size_t) -1). - Removed some very old VMS code - Changed packfrm()/unpackfrm() to not be depending on uint size (portability fix) - Removed windows specific code to restore cursor position as this causes slowdown on windows and we should not mix read() and pread() calls anyway as this is not thread safe. Updated function comment to reflect this. Changed function that depended on original behavior of my_pwrite() to itself restore the cursor position (one such case). - Added some missing checking of return value of malloc(). - Changed definition of MOD_PAD_CHAR_TO_FULL_LENGTH to avoid 'long' overflow. - Changed type of table_def::m_size from my_size_t to ulong to reflect that m_size is the number of elements in the array, not a string/memory length. - Moved THD::max_row_length() to table.cc (as it's not depending on THD). Inlined max_row_length_blob() into this function. - More function comments - Fixed some compiler warnings when compiled without partitions. - Removed setting of LEX_STRING() arguments in declaration (portability fix). - Some trivial indentation/variable name changes. - Some trivial code simplifications: - Replaced some calls to alloc_root + memcpy to use strmake_root()/strdup_root(). - Changed some calls from memdup() to strmake() (Safety fix) - Simpler loops in client-simple.c BitKeeper/etc/ignore: added libmysqld/ha_ndbcluster_cond.cc --- added debian/defs.mk debian/control client/completion_hash.cc: Remove not needed casts client/my_readline.h: Remove some old types client/mysql.cc: Simplify types client/mysql_upgrade.c: Remove some old types Update call to dirname_part client/mysqladmin.cc: Remove some old types client/mysqlbinlog.cc: Remove some old types Change some buffers to be uchar to avoid casts client/mysqlcheck.c: Remove some old types client/mysqldump.c: Remove some old types Remove some not needed casts Change some string lengths to size_t client/mysqlimport.c: Remove some old types client/mysqlshow.c: Remove some old types client/mysqlslap.c: Remove some old types Remove some not needed casts client/mysqltest.c: Removed some old types Removed some not needed casts Updated hash-get-key function arguments Updated parameters to dirname_part() client/readline.cc: Removed some old types Removed some not needed casts Changed some string lengths to use size_t client/sql_string.cc: Removed some old types dbug/dbug.c: Removed some old types Changed some string lengths to use size_t Changed some prototypes to avoid casts extra/comp_err.c: Removed some old types extra/innochecksum.c: Removed some old types extra/my_print_defaults.c: Removed some old types extra/mysql_waitpid.c: Removed some old types extra/perror.c: Removed some old types extra/replace.c: Removed some old types Updated parameters to dirname_part() extra/resolve_stack_dump.c: Removed some old types extra/resolveip.c: Removed some old types include/config-win.h: Removed some old types include/decimal.h: Changed binary strings to be uchar* instead of char* include/ft_global.h: Removed some old types include/hash.h: Removed some old types include/heap.h: Removed some old types Changed records_under_level to be 'ulong' instead of 'uint' to clarify usage of variable include/keycache.h: Removed some old types include/m_ctype.h: Removed some old types Changed some string lengths to use size_t Changed character length functions to return uint unsigned char -> uchar include/m_string.h: Removed some old types Changed some string lengths to use size_t include/my_alloc.h: Changed some string lengths to use size_t include/my_base.h: Removed some old types include/my_dbug.h: Removed some old types Changed some string lengths to use size_t Changed db_dump() to take uchar * as argument for memory to reduce number of casts in usage include/my_getopt.h: Removed some old types include/my_global.h: Removed old types: my_size_t -> size_t byte -> uchar gptr -> uchar * include/my_list.h: Removed some old types include/my_nosys.h: Removed some old types include/my_pthread.h: Removed some old types include/my_sys.h: Removed some old types Changed MY_FILE_ERROR to be in line with new definitions of my_write()/my_read() Changed some string lengths to use size_t my_malloc() / my_free() now uses void * Updated parameters to dirname_part() & my_uncompress() include/my_tree.h: Removed some old types include/my_trie.h: Removed some old types include/my_user.h: Changed some string lengths to use size_t include/my_vle.h: Removed some old types include/my_xml.h: Removed some old types Changed some string lengths to use size_t include/myisam.h: Removed some old types include/myisammrg.h: Removed some old types include/mysql.h: Removed some old types Changed byte streams to use uchar* instead of char* include/mysql_com.h: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts include/queues.h: Removed some old types include/sql_common.h: Removed some old types include/sslopt-longopts.h: Removed some old types include/violite.h: Removed some old types Changed some string lengths to use size_t libmysql/client_settings.h: Removed some old types libmysql/libmysql.c: Removed some old types libmysql/manager.c: Removed some old types libmysqld/emb_qcache.cc: Removed some old types libmysqld/emb_qcache.h: Removed some old types libmysqld/lib_sql.cc: Removed some old types Removed some not needed casts Changed some buffers to be uchar* to avoid casts true -> TRUE, false -> FALSE mysys/array.c: Removed some old types mysys/charset.c: Changed some string lengths to use size_t mysys/checksum.c: Include zlib to get definition for crc32 Removed some old types mysys/default.c: Removed some old types Changed some string lengths to use size_t mysys/default_modify.c: Changed some string lengths to use size_t Removed some not needed casts mysys/hash.c: Removed some old types Changed some string lengths to use size_t Note: Prototype of hash_key() has changed which may cause problems if client uses hash_init() with a cast for the hash-get-key function. hash_element now takes 'ulong' as the index type (cleanup) mysys/list.c: Removed some old types mysys/mf_cache.c: Changed some string lengths to use size_t mysys/mf_dirname.c: Removed some old types Changed some string lengths to use size_t Added argument to dirname_part() to avoid calculation of length for 'to' mysys/mf_fn_ext.c: Removed some old types Updated parameters to dirname_part() mysys/mf_format.c: Removed some old types Changed some string lengths to use size_t mysys/mf_getdate.c: Removed some old types mysys/mf_iocache.c: Removed some old types Changed some string lengths to use size_t Changed calculation of 'max_length' to be done the same way in all functions mysys/mf_iocache2.c: Removed some old types Changed some string lengths to use size_t Clean up comments Removed not needed indentation mysys/mf_keycache.c: Removed some old types mysys/mf_keycaches.c: Removed some old types mysys/mf_loadpath.c: Removed some old types mysys/mf_pack.c: Removed some old types Changed some string lengths to use size_t Removed some not needed casts Removed very old VMS code Updated parameters to dirname_part() Use result of dirnam_part() to remove call to strcat() mysys/mf_path.c: Removed some old types mysys/mf_radix.c: Removed some old types mysys/mf_same.c: Removed some old types mysys/mf_sort.c: Removed some old types mysys/mf_soundex.c: Removed some old types mysys/mf_strip.c: Removed some old types mysys/mf_tempdir.c: Removed some old types mysys/mf_unixpath.c: Removed some old types mysys/mf_wfile.c: Removed some old types mysys/mulalloc.c: Removed some old types mysys/my_alloc.c: Removed some old types Changed some string lengths to use size_t Use void* as type for allocated memory area Removed some not needed casts Changed argument 'Size' to 'length' according coding guidelines mysys/my_chsize.c: Changed some buffers to be uchar* to avoid casts mysys/my_compress.c: More comments Removed some old types Changed string lengths to use size_t Changed arguments to my_uncompress() to make them easier to understand Changed packfrm()/unpackfrm() to not be depending on uint size (portability fix) Changed type of 'pack_data' argument to packfrm() to avoid casts. mysys/my_conio.c: Changed some string lengths to use size_t mysys/my_create.c: Removed some old types mysys/my_div.c: Removed some old types mysys/my_error.c: Removed some old types mysys/my_fopen.c: Removed some old types mysys/my_fstream.c: Removed some old types Changed some string lengths to use size_t writen -> written mysys/my_getopt.c: Removed some old types mysys/my_getwd.c: Removed some old types More comments mysys/my_init.c: Removed some old types mysys/my_largepage.c: Removed some old types Changed some string lengths to use size_t mysys/my_lib.c: Removed some old types mysys/my_lockmem.c: Removed some old types mysys/my_malloc.c: Removed some old types Changed malloc(), free() and related functions to use void * Changed all functions to use size_t mysys/my_memmem.c: Indentation cleanup mysys/my_once.c: Removed some old types Changed malloc(), free() and related functions to use void * mysys/my_open.c: Removed some old types mysys/my_pread.c: Removed some old types Changed all functions to use size_t Added comment for how my_pread() / my_pwrite() are supposed to work. Removed windows specific code to restore cursor position as this causes slowdown on windows and we should not mix read() and pread() calls anyway as this is not thread safe. (If we ever would really need this, it should be enabled only with a flag argument) mysys/my_quick.c: Removed some old types Changed all functions to use size_t mysys/my_read.c: Removed some old types Changed all functions to use size_t mysys/my_realloc.c: Removed some old types Use void* as type for allocated memory area Changed all functions to use size_t mysys/my_static.c: Removed some old types mysys/my_static.h: Removed some old types mysys/my_vle.c: Removed some old types mysys/my_wincond.c: Removed some old types mysys/my_windac.c: Removed some old types mysys/my_write.c: Removed some old types Changed all functions to use size_t mysys/ptr_cmp.c: Removed some old types Changed all functions to use size_t mysys/queues.c: Removed some old types mysys/safemalloc.c: Removed some old types Changed malloc(), free() and related functions to use void * Changed all functions to use size_t mysys/string.c: Removed some old types Changed all functions to use size_t mysys/testhash.c: Removed some old types mysys/thr_alarm.c: Removed some old types mysys/thr_lock.c: Removed some old types mysys/tree.c: Removed some old types mysys/trie.c: Removed some old types mysys/typelib.c: Removed some old types plugin/daemon_example/daemon_example.cc: Removed some old types regex/reginit.c: Removed some old types server-tools/instance-manager/buffer.cc: Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/buffer.h: Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/commands.cc: Removed some old types Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/instance_map.cc: Removed some old types Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/instance_options.cc: Changed buffer to be of type uchar* Replaced alloc_root + strcpy() with strdup_root() server-tools/instance-manager/mysql_connection.cc: Changed buffer to be of type uchar* server-tools/instance-manager/options.cc: Removed some old types server-tools/instance-manager/parse.cc: Changed some string lengths to use size_t server-tools/instance-manager/parse.h: Removed some old types Changed some string lengths to use size_t server-tools/instance-manager/protocol.cc: Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t server-tools/instance-manager/protocol.h: Changed some string lengths to use size_t server-tools/instance-manager/user_map.cc: Removed some old types Changed some string lengths to use size_t sql/derror.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t sql/discover.cc: Changed in readfrm() and writefrom() the type for argument 'frmdata' to uchar** to avoid casts Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts sql/event_data_objects.cc: Removed some old types Added missing casts for alloc() and sprintf() sql/event_db_repository.cc: Changed some buffers to be uchar* to avoid casts Added missing casts for sprintf() sql/event_queue.cc: Removed some old types sql/field.cc: Removed some old types Changed memory buffers to be uchar* Changed some string lengths to use size_t Removed a lot of casts Safety fix in Field_blob::val_decimal() to not access zero pointer sql/field.h: Removed some old types Changed memory buffers to be uchar* (except of store() as this would have caused too many other changes). Changed some string lengths to use size_t Removed some not needed casts Changed val_xxx(xxx, new_ptr) to take const pointers sql/field_conv.cc: Removed some old types Added casts required because memory area pointers are now uchar* sql/filesort.cc: Initalize variable that was used unitialized in error conditions sql/gen_lex_hash.cc: Removed some old types Changed memory buffers to be uchar* Changed some string lengths to use size_t Removed a lot of casts Safety fix in Field_blob::val_decimal() to not access zero pointer sql/gstream.h: Added required cast sql/ha_ndbcluster.cc: Removed some old types Updated hash-get-key function arguments Changed some buffers to be uchar* to avoid casts Added required casts Removed some not needed casts sql/ha_ndbcluster.h: Removed some old types sql/ha_ndbcluster_binlog.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Replaced sql_alloc() + memcpy() + set end 0 with sql_strmake() Changed some string lengths to use size_t Added missing casts for alloc() and sprintf() sql/ha_ndbcluster_binlog.h: Removed some old types sql/ha_ndbcluster_cond.cc: Removed some old types Removed some not needed casts sql/ha_ndbcluster_cond.h: Removed some old types sql/ha_partition.cc: Removed some old types Changed prototype for change_partition() to avoid casts sql/ha_partition.h: Removed some old types sql/handler.cc: Removed some old types Changed some string lengths to use size_t sql/handler.h: Removed some old types Changed some string lengths to use size_t Changed type for 'frmblob' parameter for discover() and ha_discover() to get fewer casts sql/hash_filo.h: Removed some old types Changed all functions to use size_t sql/hostname.cc: Removed some old types sql/item.cc: Removed some old types Changed some string lengths to use size_t Use strmake() instead of memdup() to create a null terminated string. Updated calls to new Field() sql/item.h: Removed some old types Changed malloc(), free() and related functions to use void * Changed some buffers to be uchar* to avoid casts sql/item_cmpfunc.cc: Removed some old types Changed some buffers to be uchar* to avoid casts sql/item_cmpfunc.h: Removed some old types sql/item_create.cc: Removed some old types sql/item_func.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts Added test for failing alloc() in init_result_field() Remove old confusing comment Fixed compiler warning sql/item_func.h: Removed some old types sql/item_row.cc: Removed some old types sql/item_row.h: Removed some old types sql/item_strfunc.cc: Include zlib (needed becasue we call crc32) Removed some old types sql/item_strfunc.h: Removed some old types Changed some types to match new function prototypes sql/item_subselect.cc: Removed some old types sql/item_subselect.h: Removed some old types sql/item_sum.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/item_sum.h: Removed some old types sql/item_timefunc.cc: Removed some old types Changed some string lengths to use size_t sql/item_timefunc.h: Removed some old types sql/item_xmlfunc.cc: Changed some string lengths to use size_t sql/item_xmlfunc.h: Removed some old types sql/key.cc: Removed some old types Removed some not needed casts sql/lock.cc: Removed some old types Added some cast to my_multi_malloc() arguments for safety sql/log.cc: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts Changed usage of pwrite() to not assume it holds the cursor position for the file Made usage of my_read() safer sql/log_event.cc: Removed some old types Added checking of return value of malloc() in pack_info() Changed some buffers to be uchar* to avoid casts Removed some 'const' to avoid casts Added missing casts for alloc() and sprintf() Added required casts Removed some not needed casts Added some cast to my_multi_malloc() arguments for safety sql/log_event.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/log_event_old.cc: Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/log_event_old.h: Changed some buffers to be uchar* to avoid casts sql/mf_iocache.cc: Removed some old types sql/my_decimal.cc: Changed memory area to use uchar* sql/my_decimal.h: Changed memory area to use uchar* sql/mysql_priv.h: Removed some old types Changed malloc(), free() and related functions to use void * Changed some string lengths to use size_t Changed definition of MOD_PAD_CHAR_TO_FULL_LENGTH to avoid long overflow Changed some buffers to be uchar* to avoid casts sql/mysqld.cc: Removed some old types sql/net_serv.cc: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts Ensure that vio_read()/vio_write() return values are stored in a size_t variable Removed some not needed casts sql/opt_range.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/opt_range.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/opt_sum.cc: Removed some old types Removed some not needed casts sql/parse_file.cc: Removed some old types Changed some string lengths to use size_t Changed alloc_root + memcpy + set end 0 -> strmake_root() sql/parse_file.h: Removed some old types sql/partition_info.cc: Removed some old types Added missing casts for alloc() Changed some buffers to be uchar* to avoid casts sql/partition_info.h: Changed some buffers to be uchar* to avoid casts sql/protocol.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/protocol.h: Removed some old types Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t sql/records.cc: Removed some old types sql/repl_failsafe.cc: Removed some old types Changed some string lengths to use size_t Added required casts sql/rpl_filter.cc: Removed some old types Updated hash-get-key function arguments Changed some string lengths to use size_t sql/rpl_filter.h: Changed some string lengths to use size_t sql/rpl_injector.h: Removed some old types sql/rpl_record.cc: Removed some old types Removed some not needed casts Changed some buffers to be uchar* to avoid casts sql/rpl_record.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/rpl_record_old.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/rpl_record_old.h: Removed some old types Changed some buffers to be uchar* to avoid cast sql/rpl_rli.cc: Removed some old types sql/rpl_tblmap.cc: Removed some old types sql/rpl_tblmap.h: Removed some old types sql/rpl_utility.cc: Removed some old types sql/rpl_utility.h: Removed some old types Changed type of m_size from my_size_t to ulong to reflect that m_size is the number of elements in the array, not a string/memory length sql/set_var.cc: Removed some old types Updated parameters to dirname_part() sql/set_var.h: Removed some old types sql/slave.cc: Removed some old types Changed some string lengths to use size_t sql/slave.h: Removed some old types sql/sp.cc: Removed some old types Added missing casts for printf() sql/sp.h: Removed some old types Updated hash-get-key function arguments sql/sp_cache.cc: Removed some old types Added missing casts for printf() Updated hash-get-key function arguments sql/sp_head.cc: Removed some old types Added missing casts for alloc() and printf() Added required casts Updated hash-get-key function arguments sql/sp_head.h: Removed some old types sql/sp_pcontext.cc: Removed some old types sql/sp_pcontext.h: Removed some old types sql/sql_acl.cc: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts Removed some not needed casts Added required casts sql/sql_analyse.cc: Changed some buffers to be uchar* to avoid casts sql/sql_analyse.h: Changed some buffers to be uchar* to avoid casts sql/sql_array.h: Removed some old types sql/sql_base.cc: Removed some old types Updated hash-get-key function arguments sql/sql_binlog.cc: Removed some old types Added missing casts for printf() sql/sql_cache.cc: Removed some old types Updated hash-get-key function arguments Removed some not needed casts Changed some string lengths to use size_t sql/sql_cache.h: Removed some old types Removed reference to not existing function cache_key() Updated hash-get-key function arguments sql/sql_class.cc: Removed some old types Updated hash-get-key function arguments Added missing casts for alloc() Updated hash-get-key function arguments Moved THD::max_row_length() to table.cc (as it's not depending on THD) Removed some not needed casts sql/sql_class.h: Removed some old types Changed malloc(), free() and related functions to use void * Removed some not needed casts Changed some string lengths to use size_t Moved max_row_length and max_row_length_blob() to table.cc, as they are not depending on THD sql/sql_connect.cc: Removed some old types Added required casts sql/sql_db.cc: Removed some old types Removed some not needed casts Added some cast to my_multi_malloc() arguments for safety Added missing casts for alloc() sql/sql_delete.cc: Removed some old types sql/sql_handler.cc: Removed some old types Updated hash-get-key function arguments Added some cast to my_multi_malloc() arguments for safety sql/sql_help.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/sql_insert.cc: Removed some old types Added missing casts for alloc() and printf() sql/sql_lex.cc: Removed some old types sql/sql_lex.h: Removed some old types Removed some not needed casts sql/sql_list.h: Removed some old types Removed some not needed casts sql/sql_load.cc: Removed some old types Removed compiler warning sql/sql_manager.cc: Removed some old types sql/sql_map.cc: Removed some old types sql/sql_map.h: Removed some old types sql/sql_olap.cc: Removed some old types sql/sql_parse.cc: Removed some old types Trivial move of code lines to make things more readable Changed some string lengths to use size_t Added missing casts for alloc() sql/sql_partition.cc: Removed some old types Removed compiler warnings about not used functions Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/sql_partition.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/sql_plugin.cc: Removed some old types Added missing casts for alloc() Updated hash-get-key function arguments sql/sql_prepare.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Added missing casts for alloc() and printf() sql-common/client.c: Removed some old types Changed some memory areas to use uchar* sql-common/my_user.c: Changed some string lengths to use size_t sql-common/pack.c: Changed some buffers to be uchar* to avoid casts sql/sql_repl.cc: Added required casts Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t sql/sql_select.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some old types sql/sql_select.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/sql_servers.cc: Removed some old types Updated hash-get-key function arguments sql/sql_show.cc: Removed some old types Added missing casts for alloc() Removed some not needed casts sql/sql_string.cc: Removed some old types Added required casts sql/sql_table.cc: Removed some old types Removed compiler warning about not used variable Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/sql_test.cc: Removed some old types sql/sql_trigger.cc: Removed some old types Added missing casts for alloc() sql/sql_udf.cc: Removed some old types Updated hash-get-key function arguments sql/sql_union.cc: Removed some old types sql/sql_update.cc: Removed some old types Removed some not needed casts sql/sql_view.cc: Removed some old types sql/sql_yacc.yy: Removed some old types Changed some string lengths to use size_t Added missing casts for alloc() sql/stacktrace.c: Removed some old types sql/stacktrace.h: Removed some old types sql/structs.h: Removed some old types sql/table.cc: Removed some old types Updated hash-get-key function arguments Changed some buffers to be uchar* to avoid casts Removed setting of LEX_STRING() arguments in declaration Added required casts More function comments Moved max_row_length() here from sql_class.cc/sql_class.h sql/table.h: Removed some old types Changed some string lengths to use size_t sql/thr_malloc.cc: Use void* as type for allocated memory area Changed all functions to use size_t sql/tzfile.h: Changed some buffers to be uchar* to avoid casts sql/tztime.cc: Changed some buffers to be uchar* to avoid casts Updated hash-get-key function arguments Added missing casts for alloc() Removed some not needed casts sql/uniques.cc: Removed some old types Removed some not needed casts sql/unireg.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts Added missing casts for alloc() storage/archive/archive_reader.c: Removed some old types storage/archive/azio.c: Removed some old types Removed some not needed casts storage/archive/ha_archive.cc: Removed some old types Changed type for 'frmblob' in archive_discover() to match handler Updated hash-get-key function arguments Removed some not needed casts storage/archive/ha_archive.h: Removed some old types storage/blackhole/ha_blackhole.cc: Removed some old types storage/blackhole/ha_blackhole.h: Removed some old types storage/csv/ha_tina.cc: Removed some old types Updated hash-get-key function arguments Changed some buffers to be uchar* to avoid casts storage/csv/ha_tina.h: Removed some old types Removed some not needed casts storage/csv/transparent_file.cc: Removed some old types Changed type of 'bytes_read' to be able to detect read errors Fixed indentation storage/csv/transparent_file.h: Removed some old types storage/example/ha_example.cc: Removed some old types Updated hash-get-key function arguments storage/example/ha_example.h: Removed some old types storage/federated/ha_federated.cc: Removed some old types Updated hash-get-key function arguments Removed some not needed casts storage/federated/ha_federated.h: Removed some old types storage/heap/_check.c: Changed some buffers to be uchar* to avoid casts storage/heap/_rectest.c: Removed some old types storage/heap/ha_heap.cc: Removed some old types storage/heap/ha_heap.h: Removed some old types storage/heap/heapdef.h: Removed some old types storage/heap/hp_block.c: Removed some old types Changed some string lengths to use size_t storage/heap/hp_clear.c: Removed some old types storage/heap/hp_close.c: Removed some old types storage/heap/hp_create.c: Removed some old types storage/heap/hp_delete.c: Removed some old types storage/heap/hp_hash.c: Removed some old types storage/heap/hp_info.c: Removed some old types storage/heap/hp_open.c: Removed some old types storage/heap/hp_rfirst.c: Removed some old types storage/heap/hp_rkey.c: Removed some old types storage/heap/hp_rlast.c: Removed some old types storage/heap/hp_rnext.c: Removed some old types storage/heap/hp_rprev.c: Removed some old types storage/heap/hp_rrnd.c: Removed some old types storage/heap/hp_rsame.c: Removed some old types storage/heap/hp_scan.c: Removed some old types storage/heap/hp_test1.c: Removed some old types storage/heap/hp_test2.c: Removed some old types storage/heap/hp_update.c: Removed some old types storage/heap/hp_write.c: Removed some old types Changed some string lengths to use size_t storage/innobase/handler/ha_innodb.cc: Removed some old types Updated hash-get-key function arguments Added missing casts for alloc() and printf() Removed some not needed casts storage/innobase/handler/ha_innodb.h: Removed some old types storage/myisam/ft_boolean_search.c: Removed some old types storage/myisam/ft_nlq_search.c: Removed some old types storage/myisam/ft_parser.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/ft_static.c: Removed some old types storage/myisam/ft_stopwords.c: Removed some old types storage/myisam/ft_update.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/ftdefs.h: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/fulltext.h: Removed some old types storage/myisam/ha_myisam.cc: Removed some old types storage/myisam/ha_myisam.h: Removed some old types storage/myisam/mi_cache.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/mi_check.c: Removed some old types storage/myisam/mi_checksum.c: Removed some old types storage/myisam/mi_close.c: Removed some old types storage/myisam/mi_create.c: Removed some old types storage/myisam/mi_delete.c: Removed some old types storage/myisam/mi_delete_all.c: Removed some old types storage/myisam/mi_dynrec.c: Removed some old types storage/myisam/mi_extra.c: Removed some old types storage/myisam/mi_key.c: Removed some old types storage/myisam/mi_locking.c: Removed some old types storage/myisam/mi_log.c: Removed some old types storage/myisam/mi_open.c: Removed some old types Removed some not needed casts Check argument of my_write()/my_pwrite() in functions returning int Added casting of string lengths to size_t storage/myisam/mi_packrec.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/mi_page.c: Removed some old types storage/myisam/mi_preload.c: Removed some old types storage/myisam/mi_range.c: Removed some old types storage/myisam/mi_rfirst.c: Removed some old types storage/myisam/mi_rkey.c: Removed some old types storage/myisam/mi_rlast.c: Removed some old types storage/myisam/mi_rnext.c: Removed some old types storage/myisam/mi_rnext_same.c: Removed some old types storage/myisam/mi_rprev.c: Removed some old types storage/myisam/mi_rrnd.c: Removed some old types storage/myisam/mi_rsame.c: Removed some old types storage/myisam/mi_rsamepos.c: Removed some old types storage/myisam/mi_scan.c: Removed some old types storage/myisam/mi_search.c: Removed some old types storage/myisam/mi_static.c: Removed some old types storage/myisam/mi_statrec.c: Removed some old types storage/myisam/mi_test1.c: Removed some old types storage/myisam/mi_test2.c: Removed some old types storage/myisam/mi_test3.c: Removed some old types storage/myisam/mi_unique.c: Removed some old types storage/myisam/mi_update.c: Removed some old types storage/myisam/mi_write.c: Removed some old types storage/myisam/myisam_ftdump.c: Removed some old types storage/myisam/myisamchk.c: Removed some old types storage/myisam/myisamdef.h: Removed some old types storage/myisam/myisamlog.c: Removed some old types Indentation fix storage/myisam/myisampack.c: Removed some old types storage/myisam/rt_index.c: Removed some old types storage/myisam/rt_split.c: Removed some old types storage/myisam/sort.c: Removed some old types storage/myisam/sp_defs.h: Removed some old types storage/myisam/sp_key.c: Removed some old types storage/myisammrg/ha_myisammrg.cc: Removed some old types storage/myisammrg/ha_myisammrg.h: Removed some old types storage/myisammrg/myrg_close.c: Removed some old types storage/myisammrg/myrg_def.h: Removed some old types storage/myisammrg/myrg_delete.c: Removed some old types storage/myisammrg/myrg_open.c: Removed some old types Updated parameters to dirname_part() storage/myisammrg/myrg_queue.c: Removed some old types storage/myisammrg/myrg_rfirst.c: Removed some old types storage/myisammrg/myrg_rkey.c: Removed some old types storage/myisammrg/myrg_rlast.c: Removed some old types storage/myisammrg/myrg_rnext.c: Removed some old types storage/myisammrg/myrg_rnext_same.c: Removed some old types storage/myisammrg/myrg_rprev.c: Removed some old types storage/myisammrg/myrg_rrnd.c: Removed some old types storage/myisammrg/myrg_rsame.c: Removed some old types storage/myisammrg/myrg_update.c: Removed some old types storage/myisammrg/myrg_write.c: Removed some old types storage/ndb/include/util/ndb_opts.h: Removed some old types storage/ndb/src/cw/cpcd/main.cpp: Removed some old types storage/ndb/src/kernel/vm/Configuration.cpp: Removed some old types storage/ndb/src/mgmclient/main.cpp: Removed some old types storage/ndb/src/mgmsrv/InitConfigFileParser.cpp: Removed some old types Removed old disabled code storage/ndb/src/mgmsrv/main.cpp: Removed some old types storage/ndb/src/ndbapi/NdbBlob.cpp: Removed some old types storage/ndb/src/ndbapi/NdbOperationDefine.cpp: Removed not used variable storage/ndb/src/ndbapi/NdbOperationInt.cpp: Added required casts storage/ndb/src/ndbapi/NdbScanOperation.cpp: Added required casts storage/ndb/tools/delete_all.cpp: Removed some old types storage/ndb/tools/desc.cpp: Removed some old types storage/ndb/tools/drop_index.cpp: Removed some old types storage/ndb/tools/drop_tab.cpp: Removed some old types storage/ndb/tools/listTables.cpp: Removed some old types storage/ndb/tools/ndb_config.cpp: Removed some old types storage/ndb/tools/restore/consumer_restore.cpp: Changed some buffers to be uchar* to avoid casts with new defintion of packfrm() storage/ndb/tools/restore/restore_main.cpp: Removed some old types storage/ndb/tools/select_all.cpp: Removed some old types storage/ndb/tools/select_count.cpp: Removed some old types storage/ndb/tools/waiter.cpp: Removed some old types strings/bchange.c: Changed function to use uchar * and size_t strings/bcmp.c: Changed function to use uchar * and size_t strings/bmove512.c: Changed function to use uchar * and size_t strings/bmove_upp.c: Changed function to use uchar * and size_t strings/ctype-big5.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-bin.c: Changed functions to use size_t strings/ctype-cp932.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-czech.c: Fixed indentation Changed functions to use size_t strings/ctype-euc_kr.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-eucjpms.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-gb2312.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-gbk.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-latin1.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-mb.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-simple.c: Changed functions to use size_t Simpler loops for caseup/casedown unsigned int -> uint unsigned char -> uchar strings/ctype-sjis.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-tis620.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-uca.c: Changed functions to use size_t unsigned char -> uchar strings/ctype-ucs2.c: Moved inclusion of stdarg.h to other includes usigned char -> uchar Changed functions to use size_t Changed character length functions to return uint strings/ctype-ujis.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-utf8.c: Changed functions to use size_t unsigned char -> uchar Indentation fixes strings/ctype-win1250ch.c: Indentation fixes Changed functions to use size_t strings/ctype.c: Changed functions to use size_t strings/decimal.c: Changed type for memory argument to uchar * strings/do_ctype.c: Indentation fixes strings/my_strtoll10.c: unsigned char -> uchar strings/my_vsnprintf.c: Changed functions to use size_t strings/r_strinstr.c: Removed some old types Changed functions to use size_t strings/str_test.c: Removed some old types strings/strappend.c: Changed functions to use size_t strings/strcont.c: Removed some old types strings/strfill.c: Removed some old types strings/strinstr.c: Changed functions to use size_t strings/strlen.c: Changed functions to use size_t strings/strmake.c: Changed functions to use size_t strings/strnlen.c: Changed functions to use size_t strings/strnmov.c: Changed functions to use size_t strings/strto.c: unsigned char -> uchar strings/strtod.c: Changed functions to use size_t strings/strxnmov.c: Changed functions to use size_t strings/xml.c: Changed functions to use size_t Indentation fixes tests/mysql_client_test.c: Removed some old types tests/thread_test.c: Removed some old types vio/test-ssl.c: Removed some old types vio/test-sslclient.c: Removed some old types vio/test-sslserver.c: Removed some old types vio/vio.c: Removed some old types vio/vio_priv.h: Removed some old types Changed vio_read()/vio_write() to work with size_t vio/viosocket.c: Changed vio_read()/vio_write() to work with size_t Indentation fixes vio/viossl.c: Changed vio_read()/vio_write() to work with size_t Indentation fixes vio/viosslfactories.c: Removed some old types vio/viotest-ssl.c: Removed some old types win/README: More explanations
2007-05-10 11:59:39 +02:00
DBUG_PRINT("info", ("name: %.*s", (int) parse_data->name.length,
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
parse_data->name.str));
DBUG_PRINT("info", ("check existance of an event with the same name"));
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
if (!find_named_event(parse_data->dbname, parse_data->name, table))
{
2015-02-27 10:34:18 +01:00
if (thd->lex->create_info.or_replace())
{
*event_already_exists= false; // Force the caller to update event_queue
if ((ret= table->file->ha_delete_row(table->record[0])))
{
table->file->print_error(ret, MYF(0));
goto end;
}
}
else if (thd->lex->create_info.if_not_exists())
{
Fixed bug#12546938 (formerly known as 61005) - CREATE IF NOT EXIST EVENT will create multiple running events. A CREATE IF NOT EXIST on an event that existed and was enabled caused multiple instances of the event to run. Disabling the event didn't help. If the event was dropped, the event stopped running, but when created again, multiple instances of the event were still running. The only way to get out of this situation was to restart the server. The problem was that Event_db_repository::create_event() didn't return enough information to discriminate between situation when event didn't exist and was created and when event did exist and was not created (but a warning was emitted). As result in the latter case event was added to in-memory queue of events second time. And this led to unwarranted multiple executions of the same event. The solution is to add out-parameter to Event_db_repository::create_event() method which will signal that event was not created because it already exists and so it should not be added to the in-memory queue. mysql-test/r/events_bugs.result: Added results for test for Bug#12546938. mysql-test/t/events_bugs.test: Added test for Bug#12546938. sql/event_db_repository.cc: Event_db_repository::create_event was modified: set newly added out-parameter event_already_exists to true value if event wasn't created because event already existed and IF NOT EXIST clause was present. sql/event_db_repository.h: Added out-parameter 'event_already_exists' to create_event() method. sql/events.cc: Events::create_event was modified: insert new element into event queue only if event was actually created.
2011-05-27 11:23:08 +02:00
*event_already_exists= true;
push_warning_printf(thd, Sql_condition::WARN_LEVEL_NOTE,
ER_EVENT_ALREADY_EXISTS, ER(ER_EVENT_ALREADY_EXISTS),
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
parse_data->name.str);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
ret= 0;
2015-02-27 10:34:18 +01:00
goto end;
}
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
else
2015-02-27 10:34:18 +01:00
{
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
my_error(ER_EVENT_ALREADY_EXISTS, MYF(0), parse_data->name.str);
2015-02-27 10:34:18 +01:00
goto end;
}
Fixed bug#12546938 (formerly known as 61005) - CREATE IF NOT EXIST EVENT will create multiple running events. A CREATE IF NOT EXIST on an event that existed and was enabled caused multiple instances of the event to run. Disabling the event didn't help. If the event was dropped, the event stopped running, but when created again, multiple instances of the event were still running. The only way to get out of this situation was to restart the server. The problem was that Event_db_repository::create_event() didn't return enough information to discriminate between situation when event didn't exist and was created and when event did exist and was not created (but a warning was emitted). As result in the latter case event was added to in-memory queue of events second time. And this led to unwarranted multiple executions of the same event. The solution is to add out-parameter to Event_db_repository::create_event() method which will signal that event was not created because it already exists and so it should not be added to the in-memory queue. mysql-test/r/events_bugs.result: Added results for test for Bug#12546938. mysql-test/t/events_bugs.test: Added test for Bug#12546938. sql/event_db_repository.cc: Event_db_repository::create_event was modified: set newly added out-parameter event_already_exists to true value if event wasn't created because event already existed and IF NOT EXIST clause was present. sql/event_db_repository.h: Added out-parameter 'event_already_exists' to create_event() method. sql/events.cc: Events::create_event was modified: insert new element into event queue only if event was actually created.
2011-05-27 11:23:08 +02:00
} else
*event_already_exists= false;
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
DBUG_PRINT("info", ("non-existent, go forward"));
restore_record(table, s->default_values); // Get default values for fields
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
if (system_charset_info->cset->
numchars(system_charset_info, parse_data->dbname.str,
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
parse_data->dbname.str + parse_data->dbname.length) >
table->field[ET_FIELD_DB]->char_length())
{
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
my_error(ER_TOO_LONG_IDENT, MYF(0), parse_data->dbname.str);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
goto end;
}
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
if (system_charset_info->cset->
numchars(system_charset_info, parse_data->name.str,
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
parse_data->name.str + parse_data->name.length) >
table->field[ET_FIELD_NAME]->char_length())
{
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
my_error(ER_TOO_LONG_IDENT, MYF(0), parse_data->name.str);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
goto end;
}
if (sp->m_body.length > table->field[ET_FIELD_BODY]->field_length)
{
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
my_error(ER_TOO_LONG_BODY, MYF(0), parse_data->name.str);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
goto end;
}
/*
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
mysql_event_fill_row() calls my_error() in case of error so no need to
handle it here
*/
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
if (mysql_event_fill_row(thd, table, parse_data, sp, saved_mode, FALSE))
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
goto end;
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
if ((ret= table->file->ha_write_row(table->record[0])))
{
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
table->file->print_error(ret, MYF(0));
goto end;
}
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
ret= 0;
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
end:
Patch that refactors global read lock implementation and fixes bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK" and bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'". The first bug manifested itself as a deadlock which occurred when a connection, which had some table open through HANDLER statement, tried to update some data through DML statement while another connection tried to execute FLUSH TABLES WITH READ LOCK concurrently. What happened was that FTWRL in the second connection managed to perform first step of GRL acquisition and thus blocked all upcoming DML. After that it started to wait for table open through HANDLER statement to be flushed. When the first connection tried to execute DML it has started to wait for GRL/the second connection creating deadlock. The second bug manifested itself as starvation of FLUSH TABLES WITH READ LOCK statements in cases when there was a constant stream of concurrent DML statements (in two or more connections). This has happened because requests for protection against GRL which were acquired by DML statements were ignoring presence of pending GRL and thus the latter was starved. This patch solves both these problems by re-implementing GRL using metadata locks. Similar to the old implementation acquisition of GRL in new implementation is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. The first problem is solved because waits for GRL become visible to deadlock detector in metadata locking subsystem and thus deadlocks like one in the first bug become impossible. The second problem is solved because global S locks which are used for GRL implementation are given preference over IX locks which are acquired by concurrent DML (and we can switch to fair scheduling in future if needed). Important change: FTWRL/GRL no longer blocks DML and DDL on temporary tables. Before this patch behavior was not consistent in this respect: in some cases DML/DDL statements on temporary tables were blocked while in others they were not. Since the main use cases for FTWRL are various forms of backups and temporary tables are not preserved during backups we have opted for consistently allowing DML/DDL on temporary tables during FTWRL/GRL. Important change: This patch changes thread state names which are used when DML/DDL of FTWRL is waiting for global read lock. It is now either "Waiting for global read lock" or "Waiting for commit lock" depending on the stage on which FTWRL is. Incompatible change: To solve deadlock in events code which was exposed by this patch we have to replace LOCK_event_metadata mutex with metadata locks on events. As result we have to prohibit DDL on events under LOCK TABLES. This patch also adds extensive test coverage for interaction of DML/DDL and FTWRL. Performance of new and old global read lock implementations in sysbench tests were compared. There were no significant difference between new and old implementations. mysql-test/include/check_ftwrl_compatible.inc: Added helper script which allows to check that a statement is compatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/check_ftwrl_incompatible.inc: Added helper script which allows to check that a statement is incompatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/handler.inc: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/include/wait_show_condition.inc: Fixed small error in the timeout message. The correct name of variable used as parameter for this script is "$condition" and not "$wait_condition". mysql-test/r/delayed.result: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/r/events_2.result: Updated test results after prohibiting event DDL operations under LOCK TABLES. mysql-test/r/flush.result: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/r/flush_read_lock.result: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/r/flush_read_lock_kill.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/r/handler_innodb.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/handler_myisam.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/mdl_sync.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. mysql-test/suite/perfschema/r/dml_setup_instruments.result: Updated test results after removing global COND_global_read_lock condition variable. mysql-test/suite/perfschema/r/func_file_io.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/func_mutex.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/global_read_lock.result: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/r/server_init.result: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/perfschema/t/func_file_io.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/func_mutex.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/global_read_lock.test: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/t/server_init.test: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/rpl/r/rpl_tmp_table_and_DDL.result: Updated test results after prohibiting event DDL under LOCK TABLES. mysql-test/t/delayed.test: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/t/events_2.test: Updated test case after prohibiting event DDL operations under LOCK TABLES. mysql-test/t/flush.test: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/t/flush_block_commit.test: Adjusted test case after changing thread state name which is used when COMMIT waits for FLUSH TABLES WITH READ LOCK from "Waiting for release of readlock" to "Waiting for commit lock". mysql-test/t/flush_block_commit_notembedded.test: Adjusted test case after changing thread state name which is used when DML waits for FLUSH TABLES WITH READ LOCK. Now we use "Waiting for global read lock" in this case. mysql-test/t/flush_read_lock.test: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/t/flush_read_lock_kill-master.opt: We no longer need to use make_global_read_lock_block_commit_loop debug tag in this test. Instead we rely on an appropriate debug_sync point in MDL code. mysql-test/t/flush_read_lock_kill.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/t/lock_multi.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". mysql-test/t/mdl_sync.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. Updated thread state names which are used when DDL waits for FTWRL. mysql-test/t/trigger_notembedded.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". sql/event_data_objects.cc: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_data_objects.h: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_db_repository.cc: - Changed Event_db_repository methods to not release all metadata locks once they are done updating mysql.events table. This allows to keep metadata lock protecting against GRL and lock protecting particular event around until corresponding DDL statement is written to the binary log. - Removed logic for conditional update of "status" and "last_executed" fields from update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" is too much hassle. sql/event_db_repository.h: Removed logic for conditional update of "status" and "last_executed" fields from Event_db_repository:: update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" field is too much hassle. sql/event_queue.cc: Changed event scheduler code not to update mysql.events table while holding Event_queue::LOCK_event_queue mutex. Doing so led to a deadlock with a new GRL implementation. This deadlock didn't occur with old implementation due to fact that code acquiring protection against GRL ignored pending GRL requests (which lead to GRL starvation). One of goals of new implementation is to disallow GRL starvation and so we have to solve problem with this deadlock in a different way. sql/events.cc: Changed methods of Events class to acquire protection against GRL while perfoming DDL statement and keep it until statement is written to the binary log. Unfortunately this step together with new GRL implementation exposed deadlock involving Events::LOCK_event_metadata and GRL. To solve it Events::LOCK_event_metadata mutex was replaced with a metadata lock on event. As a side-effect events DDL has to be prohibited under LOCK TABLES even in cases when mysql.events table was explicitly locked for write. sql/events.h: Replaced Events::LOCK_event_metadata mutex with a metadata lock on event. sql/ha_ndbcluster.cc: Updated code after replacing custom global read lock implementation with one based on MDL. Since MDL subsystem should now be able to detect deadlocks involving metadata locks and GRL there is no need for special handling of active GRL. sql/handler.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. sql/lock.cc: Replaced custom implementation of global read lock with one based on metadata locks. This step allows to expose wait for GRL to deadlock detector of MDL subsystem and thus succesfully resolve deadlocks similar to one behind bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". It also solves problem with GRL starvation described in bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'" since metadata locks used by GRL give preference to FTWRL statement instead of DML statements (if needed in future this can be changed to fair scheduling). Similar to old implementation of acquisition of GRL is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. To support this change: - Global_read_lock::lock/unlock_global_read_lock and make_global_read_lock_block_commit methods were changed accordingly. - Global_read_lock::wait_if_global_read_lock() and start_waiting_global_read_lock() methods were dropped. It is now responsibility of code acquiring metadata locks opening tables to acquire protection against GRL by explicitly taking global IX lock with statement duration. - Global variables, mutex and condition variable used by old implementation was removed. - lock_routine_name() was changed to use statement duration for its global IX lock. It was also renamed to lock_object_name() as it now also used to take metadata locks on events. - Global_read_lock::set_explicit_lock_duration() was added which allows not to release locks used for GRL when leaving prelocked mode. sql/lock.h: - Renamed lock_routine_name() to lock_object_name() and changed its signature to allow its usage for events. - Removed broadcast_refresh() function. It is no longer needed with new GRL implementation. sql/log_event.cc: Release metadata locks with statement duration at the end of processing legacy event for LOAD DATA. This ensures that replication thread processing such event properly releases its protection against global read lock. sql/mdl.cc: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Changed thread state name for GLOBAL namespace to "Waiting for global read lock". Optimized MDL_map::find_or_insert() method to avoid taking m_mutex mutex when looking up MDL_lock objects for GLOBAL or COMMIT namespaces. We keep pre-created MDL_lock objects for these namespaces around and simply return pointers to these global objects when needed. Changed MDL_lock/MDL_scoped_lock to properly handle notification of insert delayed handler threads when FTWRL takes global S lock. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mdl.h: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mysqld.cc: Removed global mutex and condition variables which were used by old implementation of GRL. Also we no longer need to initialize Events::LOCK_event_metadata mutex as it was replaced with metadata locks on events. sql/mysqld.h: Removed global variable, mutex and condition variables which were used by old implementation of GRL. sql/rpl_rli.cc: When slave thread closes tables which were open for handling of RBR events ensure that it releases global IX lock which was acquired as protection against GRL. sql/sp.cc: Adjusted code to the new signature of lock_object/routine_name(), to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sp_head.cc: Ensure that statements in stored procedures release statement metadata locks and thus release their protectiong against GRL in proper moment in time. Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_admin.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_base.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. Code doing this also responsible for checking that current connection has no active GRL by calling an Global_read_lock::can_acquire_protection() method. Changed code in open_table() and lock_table_names() accordingly. Note that as result of this change DDL and DML on temporary tables is always compatible with GRL (before it was incompatible in some cases and compatible in other cases). - To speed-up code acquiring protection against GRL introduced m_has_protection_against_grl member in Open_table_context class. It indicates that protection was already acquired sometime during open_tables() execution and new attempts can be skipped. - Thanks to new GRL implementation calls to broadcast_refresh() became unnecessary and were removed. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_base.h: Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. Also introduced Open_table_context::m_has_protection_against_grl member which allows to avoid acquiring protection against GRL while opening tables if such protection was already acquired. sql/sql_class.cc: Changed THD::leave_locked_tables_mode() after transactional sentinel for metadata locks was obsoleted by introduction of locks with explicit duration. sql/sql_class.h: - Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. - Changed Global_read_lock class according to changes in global read lock implementation: * wait_if_global_read_lock and start_waiting_global_read_lock are now gone. Instead code needing protection against GRL has to acquire global IX metadata lock with statement duration itself. To help it new can_acquire_protection() was introduced. Also as result of the above change m_protection_count member is gone too. * Added m_mdl_blocks_commits_lock member to store metadata lock blocking commits. * Adjusted code to the fact that concept of transactional sentinel was obsoleted by concept of lock duration. - Removed CF_PROTECT_AGAINST_GRL flag as it is no longer necessary. New GRL implementation acquires protection against global read lock automagically when statement acquires metadata locks on tables or other objects it is going to change. sql/sql_db.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_handler.cc: Removed call to broadcast_refresh() function. It is no longer needed with new GRL implementation. Adjusted code after introducing duration concept for metadata locks. Particularly to the fact transactional sentinel was replaced with explicit duration. sql/sql_handler.h: Renamed mysql_ha_move_tickets_after_trans_sentinel() to mysql_ha_set_explicit_lock_duration() after transactional sentinel was obsoleted by locks with explicit duration. sql/sql_insert.cc: Adjusted code handling delaying inserts after switching to new GRL implementation. Now connection thread initiating delayed insert has to acquire global IX lock in addition to metadata lock on table being inserted into. This IX lock protects against GRL and similarly to SW lock on table being inserted into has to be passed to handler thread in order to avoid deadlocks. sql/sql_lex.cc: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_lex.h: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_parse.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. This lock is automatically released at the end of statement execution. - Changed implementation of CREATE/DROP PROCEDURE/FUNCTION not to release metadata locks and thus protection against of GRL in the middle of statement execution. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_prepare.cc: Adjusted code to the to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_rename.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before renaming tables. This happens automatically in code which acquires metadata locks on tables being renamed. sql/sql_show.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_table.cc: - With new GRL implementation there is no need to explicitly acquire protection against GRL before dropping tables. This happens automatically in code which acquires metadata locks on tables being dropped. - Changed mysql_alter_table() not to release lock on new table name explicitly and to rely on automatic release of locks at the end of statement instead. This was necessary since now MDL_context::release_lock() is supported only for locks for explicit duration. sql/sql_trigger.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before changing table triggers. This happens automatically in code which acquires metadata locks on tables which triggers are to be changed. sql/sql_update.cc: Fix bug exposed by GRL testing. During prepare phase acquire only S metadata locks instead of SW locks to keep prepare of multi-UPDATE compatible with concurrent LOCK TABLES WRITE and global read lock. sql/sql_view.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before creating view. This happens automatically in code which acquires metadata lock on view to be created. sql/sql_yacc.yy: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/table.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/table.h: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/transaction.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. Also adjusted code to the fact that MDL savepoint is now represented by MDL_savepoint class.
2010-11-11 18:11:05 +01:00
close_thread_tables(thd);
thd->mdl_context.rollback_to_savepoint(mdl_savepoint);
A pre-requisite patch for the fix for Bug#52044. This patch also fixes Bug#55452 "SET PASSWORD is replicated twice in RBR mode". The goal of this patch is to remove the release of metadata locks from close_thread_tables(). This is necessary to not mistakenly release the locks in the course of a multi-step operation that involves multiple close_thread_tables() or close_tables_for_reopen(). On the same token, move statement commit outside close_thread_tables(). Other cleanups: Cleanup COM_FIELD_LIST. Don't call close_thread_tables() in COM_SHUTDOWN -- there are no open tables there that can be closed (we leave the locked tables mode in THD destructor, and this close_thread_tables() won't leave it anyway). Make open_and_lock_tables() and open_and_lock_tables_derived() call close_thread_tables() upon failure. Remove the calls to close_thread_tables() that are now unnecessary. Simplify the back off condition in Open_table_context. Streamline metadata lock handling in LOCK TABLES implementation. Add asserts to ensure correct life cycle of statement transaction in a session. Remove a piece of dead code that has also become redundant after the fix for Bug 37521. mysql-test/r/variables.result: Update results: set @@autocommit and statement transaction/ prelocked mode. mysql-test/r/view.result: A harmless change in CHECK TABLE <view> status for a broken view. If previously a failure to prelock all functions used in a view would leave the connection in LTM_PRELOCKED mode, now we call close_thread_tables() from open_and_lock_tables() and leave prelocked mode, thus some check in mysql_admin_table() that works only in prelocked/locked tables mode is no longer activated. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Fixed Bug#55452 "SET PASSWORD is replicated twice in RBR mode": extra binlog events are gone from the binary log. mysql-test/t/variables.test: Add a test case: set autocommit and statement transaction/prelocked mode. sql/event_data_objects.cc: Simplify code in Event_job_data::execute(). Move sp_head memory management to lex_end(). sql/event_db_repository.cc: Move the release of metadata locks outside close_thread_tables(). Make sure we call close_thread_tables() when open_and_lock_tables() fails and remove extra code from the events data dictionary. Use close_mysql_tables(), a new internal function to properly close mysql.* tables in the data dictionary. Contract Event_db_repository::drop_events_by_field, drop_schema_events into one function. When dropping all events in a schema, make sure we don't mistakenly release all locks acquired by DROP DATABASE. These include locks on the database name and the global intention exclusive metadata lock. sql/event_db_repository.h: Function open_event_table() does not require an instance of Event_db_repository. sql/events.cc: Use close_mysql_tables() instead of close_thread_tables() to bootstrap events, since the latter no longer releases metadata locks. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 no longer releases acquired metadata locks. Do it in the caller. sql/ha_ndbcluster_binlog.cc: Deploy the new protocol for closing thread tables in run_query() and ndb_binlog_index code. sql/handler.cc: Assert that we never call ha_commit_trans/ ha_rollback_trans in sub-statement, which is now the case. sql/handler.h: Add an accessor to check whether THD_TRANS object is empty (has no transaction started). sql/log.cc: Update a comment. sql/log_event.cc: Since now we commit/rollback statement transaction in mysql_execute_command(), we need a mechanism to communicate from Query_log_event::do_apply_event() to mysql_execute_command() that the statement transaction should be rolled back, not committed. Ideally it would be a virtual method of THD. I hesitate to make THD a virtual base class in this already large patch. Use a thd->variables.option_bits for now. Remove a call to close_thread_tables() from the slave IO thread. It doesn't open any tables, and the protocol for closing thread tables is more complicated now. Make sure we properly close thread tables, however, in Load_data_log_event, which doesn't follow the standard server execution procedure with mysql_execute_command(). @todo: this piece should use Server_runnable framework instead. Remove an unnecessary call to mysql_unlock_tables(). sql/rpl_rli.cc: Update Relay_log_info::slave_close_thread_tables() to follow the new close protocol. sql/set_var.cc: Remove an unused header. sql/slave.cc: Remove an unnecessary call to close_thread_tables(). sql/sp.cc: Remove unnecessary calls to close_thread_tables() from SP DDL implementation. The tables will be closed by the caller, in mysql_execute_command(). When dropping all routines in a database, make sure to not mistakenly drop all metadata locks acquired so far, they include the scoped lock on the schema. sql/sp_head.cc: Correct the protocol that closes thread tables in an SP instruction. Clear lex->sphead before cleaning up lex with lex_end to make sure that we don't delete the sphead twice. It's considered to be "cleaner" and more in line with future changes than calling delete lex->sphead in other places that cleanup the lex. sql/sp_head.h: When destroying m_lex_keeper of an instruction, don't delete the sphead that all lex objects share. @todo: don't store a reference to routine's sp_head instance in instruction's lex. sql/sql_acl.cc: Don't call close_thread_tables() where the caller will do that for us. Fix Bug#55452 "SET PASSWORD is replicated twice in RBR mode" by disabling RBR replication in change_password() function. Use close_mysql_tables() in bootstrap and ACL reload code to make sure we release all metadata locks. sql/sql_base.cc: This is the main part of the patch: - remove manipulation with thd->transaction and thd->mdl_context from close_thread_tables(). Now this function is only responsible for closing tables, nothing else. This is necessary to be able to easily use close_thread_tables() in procedures, that involve multiple open/close tables, which all need to be protected continuously by metadata locks. Add asserts ensuring that TABLE object is only used when is protected by a metadata lock. Simplify the back off condition of Open_table_context, we no longer need to look at the autocommit mode. Make open_and_lock_tables() and open_normal_and_derived_tables() close thread tables and release metadata locks acquired so-far upon failure. This simplifies their usage. Implement close_mysql_tables(). sql/sql_base.h: Add declaration for close_mysql_tables(). sql/sql_class.cc: Remove a piece of dead code that has also become redundant after the fix for Bug 37521. The code became dead when my_eof() was made a non-protocol method, but a method that merely modifies the diagnostics area. The code became redundant with the fix for Bug#37521, when we started to cal close_thread_tables() before Protocol::end_statement(). sql/sql_do.cc: Do nothing in DO if inside a substatement (the assert moved out of trans_rollback_stmt). sql/sql_handler.cc: Add comments. sql/sql_insert.cc: Remove dead code. Release metadata locks explicitly at the end of the delayed insert thread. sql/sql_lex.cc: Add destruction of lex->sphead to lex_end(), lex "reset" method called at the end of each statement. sql/sql_parse.cc: Move close_thread_tables() and other related cleanups to mysql_execute_command() from dispatch_command(). This has become possible after the fix for Bug#37521. Mark federated SERVER statements as DDL. Next step: make sure that we don't store eof packet in the query cache, and move the query cache code outside mysql_parse. Brush up the code of COM_FIELD_LIST. Remove unnecessary calls to close_thread_tables(). When killing a query, don't report "OK" if it was a suicide. sql/sql_parse.h: Remove declaration of a function that is now static. sql/sql_partition.cc: Remove an unnecessary call to close_thread_tables(). sql/sql_plugin.cc: open_and_lock_tables() will clean up after itself after a failure. Move close_thread_tables() above end: label, and replace with close_mysql_tables(), which will also release the metadata lock on mysql.plugin. sql/sql_prepare.cc: Now that we no longer release locks in close_thread_tables() statement prepare code has become more straightforward. Remove the now redundant check for thd->killed() (used only by the backup project) from Execute_server_runnable. Reorder code to take into account that now mysql_execute_command() performs lex->unit.cleanup() and close_thread_tables(). sql/sql_priv.h: Add a new option to server options to interact between the slave SQL thread and execution framework (hack). @todo: use a virtual method of class THD instead. sql/sql_servers.cc: Due to Bug 25705 replication of DROP/CREATE/ALTER SERVER is broken. Make sure at least we do not attempt to replicate these statements using RBR, as this violates the assert in close_mysql_tables(). sql/sql_table.cc: Do not release metadata locks in mysql_rm_table_part2, this is done by the caller. Do not call close_thread_tables() in mysql_create_table(), this is done by the caller. Fix a bug in DROP TABLE under LOCK TABLES when, upon error in wait_while_table_is_used() we would mistakenly release the metadata lock on a non-dropped table. Explicitly release metadata locks when doing an implicit commit. sql/sql_trigger.cc: Now that we delete lex->sphead in lex_end(), zero the trigger's sphead in lex after loading the trigger, to avoid double deletion. sql/sql_udf.cc: Use close_mysql_tables() instead of close_thread_tables(). sql/sys_vars.cc: Remove code added in scope of WL#4284 which would break when we perform set @@session.autocommit along with setting other variables and using tables or functions. A test case added to variables.test. sql/transaction.cc: Add asserts. sql/tztime.cc: Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 12:25:53 +02:00
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
thd->variables.sql_mode= saved_mode;
DBUG_RETURN(MY_TEST(ret));
}
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
/**
Used to execute ALTER EVENT. Pendant to Events::update_event().
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
@param[in,out] thd thread handle
@param[in] parse_data parsed event definition
@param[in] new_dbname not NULL if ALTER EVENT RENAME
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
points at a new database name
@param[in] new_name not NULL if ALTER EVENT RENAME
points at a new event name
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
@pre All semantic checks are performed outside this function,
it only updates the event definition on disk.
@pre We don't have any tables open in the given thread.
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
@retval FALSE success
@retval TRUE error (reported)
*/
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
bool
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
Event_db_repository::update_event(THD *thd, Event_parse_data *parse_data,
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
LEX_STRING *new_dbname,
LEX_STRING *new_name)
{
CHARSET_INFO *scs= system_charset_info;
TABLE *table= NULL;
sp_head *sp= thd->lex->sphead;
2011-11-02 12:55:46 +01:00
ulonglong saved_mode= thd->variables.sql_mode;
Patch that refactors global read lock implementation and fixes bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK" and bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'". The first bug manifested itself as a deadlock which occurred when a connection, which had some table open through HANDLER statement, tried to update some data through DML statement while another connection tried to execute FLUSH TABLES WITH READ LOCK concurrently. What happened was that FTWRL in the second connection managed to perform first step of GRL acquisition and thus blocked all upcoming DML. After that it started to wait for table open through HANDLER statement to be flushed. When the first connection tried to execute DML it has started to wait for GRL/the second connection creating deadlock. The second bug manifested itself as starvation of FLUSH TABLES WITH READ LOCK statements in cases when there was a constant stream of concurrent DML statements (in two or more connections). This has happened because requests for protection against GRL which were acquired by DML statements were ignoring presence of pending GRL and thus the latter was starved. This patch solves both these problems by re-implementing GRL using metadata locks. Similar to the old implementation acquisition of GRL in new implementation is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. The first problem is solved because waits for GRL become visible to deadlock detector in metadata locking subsystem and thus deadlocks like one in the first bug become impossible. The second problem is solved because global S locks which are used for GRL implementation are given preference over IX locks which are acquired by concurrent DML (and we can switch to fair scheduling in future if needed). Important change: FTWRL/GRL no longer blocks DML and DDL on temporary tables. Before this patch behavior was not consistent in this respect: in some cases DML/DDL statements on temporary tables were blocked while in others they were not. Since the main use cases for FTWRL are various forms of backups and temporary tables are not preserved during backups we have opted for consistently allowing DML/DDL on temporary tables during FTWRL/GRL. Important change: This patch changes thread state names which are used when DML/DDL of FTWRL is waiting for global read lock. It is now either "Waiting for global read lock" or "Waiting for commit lock" depending on the stage on which FTWRL is. Incompatible change: To solve deadlock in events code which was exposed by this patch we have to replace LOCK_event_metadata mutex with metadata locks on events. As result we have to prohibit DDL on events under LOCK TABLES. This patch also adds extensive test coverage for interaction of DML/DDL and FTWRL. Performance of new and old global read lock implementations in sysbench tests were compared. There were no significant difference between new and old implementations. mysql-test/include/check_ftwrl_compatible.inc: Added helper script which allows to check that a statement is compatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/check_ftwrl_incompatible.inc: Added helper script which allows to check that a statement is incompatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/handler.inc: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/include/wait_show_condition.inc: Fixed small error in the timeout message. The correct name of variable used as parameter for this script is "$condition" and not "$wait_condition". mysql-test/r/delayed.result: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/r/events_2.result: Updated test results after prohibiting event DDL operations under LOCK TABLES. mysql-test/r/flush.result: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/r/flush_read_lock.result: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/r/flush_read_lock_kill.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/r/handler_innodb.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/handler_myisam.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/mdl_sync.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. mysql-test/suite/perfschema/r/dml_setup_instruments.result: Updated test results after removing global COND_global_read_lock condition variable. mysql-test/suite/perfschema/r/func_file_io.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/func_mutex.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/global_read_lock.result: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/r/server_init.result: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/perfschema/t/func_file_io.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/func_mutex.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/global_read_lock.test: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/t/server_init.test: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/rpl/r/rpl_tmp_table_and_DDL.result: Updated test results after prohibiting event DDL under LOCK TABLES. mysql-test/t/delayed.test: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/t/events_2.test: Updated test case after prohibiting event DDL operations under LOCK TABLES. mysql-test/t/flush.test: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/t/flush_block_commit.test: Adjusted test case after changing thread state name which is used when COMMIT waits for FLUSH TABLES WITH READ LOCK from "Waiting for release of readlock" to "Waiting for commit lock". mysql-test/t/flush_block_commit_notembedded.test: Adjusted test case after changing thread state name which is used when DML waits for FLUSH TABLES WITH READ LOCK. Now we use "Waiting for global read lock" in this case. mysql-test/t/flush_read_lock.test: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/t/flush_read_lock_kill-master.opt: We no longer need to use make_global_read_lock_block_commit_loop debug tag in this test. Instead we rely on an appropriate debug_sync point in MDL code. mysql-test/t/flush_read_lock_kill.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/t/lock_multi.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". mysql-test/t/mdl_sync.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. Updated thread state names which are used when DDL waits for FTWRL. mysql-test/t/trigger_notembedded.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". sql/event_data_objects.cc: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_data_objects.h: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_db_repository.cc: - Changed Event_db_repository methods to not release all metadata locks once they are done updating mysql.events table. This allows to keep metadata lock protecting against GRL and lock protecting particular event around until corresponding DDL statement is written to the binary log. - Removed logic for conditional update of "status" and "last_executed" fields from update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" is too much hassle. sql/event_db_repository.h: Removed logic for conditional update of "status" and "last_executed" fields from Event_db_repository:: update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" field is too much hassle. sql/event_queue.cc: Changed event scheduler code not to update mysql.events table while holding Event_queue::LOCK_event_queue mutex. Doing so led to a deadlock with a new GRL implementation. This deadlock didn't occur with old implementation due to fact that code acquiring protection against GRL ignored pending GRL requests (which lead to GRL starvation). One of goals of new implementation is to disallow GRL starvation and so we have to solve problem with this deadlock in a different way. sql/events.cc: Changed methods of Events class to acquire protection against GRL while perfoming DDL statement and keep it until statement is written to the binary log. Unfortunately this step together with new GRL implementation exposed deadlock involving Events::LOCK_event_metadata and GRL. To solve it Events::LOCK_event_metadata mutex was replaced with a metadata lock on event. As a side-effect events DDL has to be prohibited under LOCK TABLES even in cases when mysql.events table was explicitly locked for write. sql/events.h: Replaced Events::LOCK_event_metadata mutex with a metadata lock on event. sql/ha_ndbcluster.cc: Updated code after replacing custom global read lock implementation with one based on MDL. Since MDL subsystem should now be able to detect deadlocks involving metadata locks and GRL there is no need for special handling of active GRL. sql/handler.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. sql/lock.cc: Replaced custom implementation of global read lock with one based on metadata locks. This step allows to expose wait for GRL to deadlock detector of MDL subsystem and thus succesfully resolve deadlocks similar to one behind bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". It also solves problem with GRL starvation described in bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'" since metadata locks used by GRL give preference to FTWRL statement instead of DML statements (if needed in future this can be changed to fair scheduling). Similar to old implementation of acquisition of GRL is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. To support this change: - Global_read_lock::lock/unlock_global_read_lock and make_global_read_lock_block_commit methods were changed accordingly. - Global_read_lock::wait_if_global_read_lock() and start_waiting_global_read_lock() methods were dropped. It is now responsibility of code acquiring metadata locks opening tables to acquire protection against GRL by explicitly taking global IX lock with statement duration. - Global variables, mutex and condition variable used by old implementation was removed. - lock_routine_name() was changed to use statement duration for its global IX lock. It was also renamed to lock_object_name() as it now also used to take metadata locks on events. - Global_read_lock::set_explicit_lock_duration() was added which allows not to release locks used for GRL when leaving prelocked mode. sql/lock.h: - Renamed lock_routine_name() to lock_object_name() and changed its signature to allow its usage for events. - Removed broadcast_refresh() function. It is no longer needed with new GRL implementation. sql/log_event.cc: Release metadata locks with statement duration at the end of processing legacy event for LOAD DATA. This ensures that replication thread processing such event properly releases its protection against global read lock. sql/mdl.cc: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Changed thread state name for GLOBAL namespace to "Waiting for global read lock". Optimized MDL_map::find_or_insert() method to avoid taking m_mutex mutex when looking up MDL_lock objects for GLOBAL or COMMIT namespaces. We keep pre-created MDL_lock objects for these namespaces around and simply return pointers to these global objects when needed. Changed MDL_lock/MDL_scoped_lock to properly handle notification of insert delayed handler threads when FTWRL takes global S lock. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mdl.h: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mysqld.cc: Removed global mutex and condition variables which were used by old implementation of GRL. Also we no longer need to initialize Events::LOCK_event_metadata mutex as it was replaced with metadata locks on events. sql/mysqld.h: Removed global variable, mutex and condition variables which were used by old implementation of GRL. sql/rpl_rli.cc: When slave thread closes tables which were open for handling of RBR events ensure that it releases global IX lock which was acquired as protection against GRL. sql/sp.cc: Adjusted code to the new signature of lock_object/routine_name(), to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sp_head.cc: Ensure that statements in stored procedures release statement metadata locks and thus release their protectiong against GRL in proper moment in time. Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_admin.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_base.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. Code doing this also responsible for checking that current connection has no active GRL by calling an Global_read_lock::can_acquire_protection() method. Changed code in open_table() and lock_table_names() accordingly. Note that as result of this change DDL and DML on temporary tables is always compatible with GRL (before it was incompatible in some cases and compatible in other cases). - To speed-up code acquiring protection against GRL introduced m_has_protection_against_grl member in Open_table_context class. It indicates that protection was already acquired sometime during open_tables() execution and new attempts can be skipped. - Thanks to new GRL implementation calls to broadcast_refresh() became unnecessary and were removed. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_base.h: Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. Also introduced Open_table_context::m_has_protection_against_grl member which allows to avoid acquiring protection against GRL while opening tables if such protection was already acquired. sql/sql_class.cc: Changed THD::leave_locked_tables_mode() after transactional sentinel for metadata locks was obsoleted by introduction of locks with explicit duration. sql/sql_class.h: - Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. - Changed Global_read_lock class according to changes in global read lock implementation: * wait_if_global_read_lock and start_waiting_global_read_lock are now gone. Instead code needing protection against GRL has to acquire global IX metadata lock with statement duration itself. To help it new can_acquire_protection() was introduced. Also as result of the above change m_protection_count member is gone too. * Added m_mdl_blocks_commits_lock member to store metadata lock blocking commits. * Adjusted code to the fact that concept of transactional sentinel was obsoleted by concept of lock duration. - Removed CF_PROTECT_AGAINST_GRL flag as it is no longer necessary. New GRL implementation acquires protection against global read lock automagically when statement acquires metadata locks on tables or other objects it is going to change. sql/sql_db.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_handler.cc: Removed call to broadcast_refresh() function. It is no longer needed with new GRL implementation. Adjusted code after introducing duration concept for metadata locks. Particularly to the fact transactional sentinel was replaced with explicit duration. sql/sql_handler.h: Renamed mysql_ha_move_tickets_after_trans_sentinel() to mysql_ha_set_explicit_lock_duration() after transactional sentinel was obsoleted by locks with explicit duration. sql/sql_insert.cc: Adjusted code handling delaying inserts after switching to new GRL implementation. Now connection thread initiating delayed insert has to acquire global IX lock in addition to metadata lock on table being inserted into. This IX lock protects against GRL and similarly to SW lock on table being inserted into has to be passed to handler thread in order to avoid deadlocks. sql/sql_lex.cc: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_lex.h: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_parse.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. This lock is automatically released at the end of statement execution. - Changed implementation of CREATE/DROP PROCEDURE/FUNCTION not to release metadata locks and thus protection against of GRL in the middle of statement execution. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_prepare.cc: Adjusted code to the to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_rename.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before renaming tables. This happens automatically in code which acquires metadata locks on tables being renamed. sql/sql_show.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_table.cc: - With new GRL implementation there is no need to explicitly acquire protection against GRL before dropping tables. This happens automatically in code which acquires metadata locks on tables being dropped. - Changed mysql_alter_table() not to release lock on new table name explicitly and to rely on automatic release of locks at the end of statement instead. This was necessary since now MDL_context::release_lock() is supported only for locks for explicit duration. sql/sql_trigger.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before changing table triggers. This happens automatically in code which acquires metadata locks on tables which triggers are to be changed. sql/sql_update.cc: Fix bug exposed by GRL testing. During prepare phase acquire only S metadata locks instead of SW locks to keep prepare of multi-UPDATE compatible with concurrent LOCK TABLES WRITE and global read lock. sql/sql_view.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before creating view. This happens automatically in code which acquires metadata lock on view to be created. sql/sql_yacc.yy: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/table.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/table.h: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/transaction.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. Also adjusted code to the fact that MDL savepoint is now represented by MDL_savepoint class.
2010-11-11 18:11:05 +01:00
/*
Take a savepoint to release only the lock on mysql.event
table at the end but keep the global read lock and
possible other locks taken by the caller.
*/
MDL_savepoint mdl_savepoint= thd->mdl_context.mdl_savepoint();
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
int ret= 1;
DBUG_ENTER("Event_db_repository::update_event");
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
/* None or both must be set */
DBUG_ASSERT((new_dbname && new_name) || new_dbname == new_name);
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
/* Reset sql_mode during data dictionary operations. */
thd->variables.sql_mode= 0;
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
if (open_event_table(thd, TL_WRITE, &table))
goto end;
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
DBUG_PRINT("info", ("dbname: %s", parse_data->dbname.str));
DBUG_PRINT("info", ("name: %s", parse_data->name.str));
DBUG_PRINT("info", ("user: %s", parse_data->definer.str));
/* first look whether we overwrite */
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
if (new_name)
{
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
DBUG_PRINT("info", ("rename to: %s@%s", new_dbname->str, new_name->str));
if (!find_named_event(*new_dbname, *new_name, table))
{
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
my_error(ER_EVENT_ALREADY_EXISTS, MYF(0), new_name->str);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
goto end;
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
}
}
/*
...and then if there is such an event. Don't exchange the blocks
because you will get error 120 from table handler because new_name will
overwrite the key and SE will tell us that it cannot find the already found
row (copied into record[1] later
*/
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
if (find_named_event(parse_data->dbname, parse_data->name, table))
{
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
my_error(ER_EVENT_DOES_NOT_EXIST, MYF(0), parse_data->name.str);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
goto end;
}
store_record(table,record[1]);
Bug#35981: ALTER EVENT causes the server to change the PRESERVE option. If [NOT] PRESERVE was not given, parser always defaulted to NOT PRESERVE, making it impossible for the "not given = no change" rule to work in ALTER EVENT. Leaving out the PRESERVE-clause defaults to NOT PRESERVE on CREATE now, and to "no change" in ALTER. mysql-test/r/events_2.result: show that giving no PRESERVE-clause to ALTER EVENT results in no change. show that giving no PRESERVE-clause to CREATE EVENT defaults to NOT PRESERVE as per the docs. Show specifically that this is also handled correctly when trying to ALTER EVENTs into the past. mysql-test/t/events_2.test: show that giving no PRESERVE-clause to ALTER EVENT results in no change. show that giving no PRESERVE-clause to CREATE EVENT defaults to NOT PRESERVE as per the docs. Show specifically that this is also handled correctly when trying to ALTER EVENTs into the past. sql/event_db_repository.cc: If ALTER EVENT was given no PRESERVE-clause (meaning "no change"), we don't know the previous PRESERVE-setting by the time we check the parse-data. If ALTER EVENT was given dates that are in the past, we don't know how to react, lacking the PRESERVE-setting. Heal this by running the check later when we have actually read the previous EVENT-data. sql/event_parse_data.cc: Change default for ON COMPLETION to indicate, "not specified." Also defer throwing errors when ALTER EVENT is given dates in the past but not PRESERVE-clause until we know the previous PRESERVE-value. sql/event_parse_data.h: Add third state for ON COMPLETION [NOT] PRESERVE (preserve, don't, not specified). Make check_dates() public so we can defer this check until deeper in the callstack where we have all the required data. sql/sql_yacc.yy: If CREATE EVENT is not given ON COMPLETION [NOT] PRESERVE, we default to NOT, as per the docs.
2008-08-18 13:05:51 +02:00
/*
We check whether ALTER EVENT was given dates that are in the past.
However to know how to react, we need the ON COMPLETION type. The
check is deferred to this point because by now we have the previous
setting (from the event-table) to fall back on if nothing was specified
in the ALTER EVENT-statement.
*/
if (parse_data->check_dates(thd,
(int) table->field[ET_FIELD_ON_COMPLETION]->val_int()))
Bug#35981: ALTER EVENT causes the server to change the PRESERVE option. If [NOT] PRESERVE was not given, parser always defaulted to NOT PRESERVE, making it impossible for the "not given = no change" rule to work in ALTER EVENT. Leaving out the PRESERVE-clause defaults to NOT PRESERVE on CREATE now, and to "no change" in ALTER. mysql-test/r/events_2.result: show that giving no PRESERVE-clause to ALTER EVENT results in no change. show that giving no PRESERVE-clause to CREATE EVENT defaults to NOT PRESERVE as per the docs. Show specifically that this is also handled correctly when trying to ALTER EVENTs into the past. mysql-test/t/events_2.test: show that giving no PRESERVE-clause to ALTER EVENT results in no change. show that giving no PRESERVE-clause to CREATE EVENT defaults to NOT PRESERVE as per the docs. Show specifically that this is also handled correctly when trying to ALTER EVENTs into the past. sql/event_db_repository.cc: If ALTER EVENT was given no PRESERVE-clause (meaning "no change"), we don't know the previous PRESERVE-setting by the time we check the parse-data. If ALTER EVENT was given dates that are in the past, we don't know how to react, lacking the PRESERVE-setting. Heal this by running the check later when we have actually read the previous EVENT-data. sql/event_parse_data.cc: Change default for ON COMPLETION to indicate, "not specified." Also defer throwing errors when ALTER EVENT is given dates in the past but not PRESERVE-clause until we know the previous PRESERVE-value. sql/event_parse_data.h: Add third state for ON COMPLETION [NOT] PRESERVE (preserve, don't, not specified). Make check_dates() public so we can defer this check until deeper in the callstack where we have all the required data. sql/sql_yacc.yy: If CREATE EVENT is not given ON COMPLETION [NOT] PRESERVE, we default to NOT, as per the docs.
2008-08-18 13:05:51 +02:00
goto end;
/*
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
mysql_event_fill_row() calls my_error() in case of error so no need to
handle it here
*/
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
if (mysql_event_fill_row(thd, table, parse_data, sp, saved_mode, TRUE))
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
goto end;
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
if (new_dbname)
WL#3337 (Events new architecture) This cut No 7 should finish the part of fixing the parsing of the events : - Event_timed is no more used during parsing. Less problems because it has a mutex. Event_parse_data class is used during parsing. It is suited only for this purpose. It's pretty lightweight - Late checking of data from parsing is being performed. This should solve the problems of nested events in SP or other events (for the situation of no nested bodies). Before if an ALTER EVENT was in a SP, then when the SP was compiled, and not executed, the actual init_xxx methods of Event_timed were called, which is wrong. - It could be a side effect of using a specialized class, but test events_stress is now 25% quicker. Cut No8 will start splitting Event_scheduler into 2 parts, the QUEUE will be moved to Event_queue. mysql-test/r/events.result: update result mysql-test/t/events.test: disabled is actually wrong, should be disable, but because of the early checking it was never parsed. sql/event_data_objects.cc: move add init_xxx methods from Event_timed to Event_parse_data Event_parse data does not need definer_user and definer_host in Event_timed::compile() do not use lex.et, well there is no more lex.et :) sql/event_data_objects.h: move parsing responsibilities from Event_timed to Event_parse_data sql/event_db_repository.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_db_repository.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/event_scheduler.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.cc: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/events.h: No more Event_timed comes from parsing but Event_parse_data The initialization of Item*-s from parsing is done late, and not during the actual parsing. This is the right way to go because if an ALTER EVENT is inside a SP or CREATE EVENT it should not be executed (initialized) during parsing, as it was done. sql/sql_lex.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_lex.h: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data sql/sql_parse.cc: lex->et_compile_phase and lex->et are no more. Use lex->event_parse_data ACL checks were moved inside the Events subsystem. Also ending of the transaction is performed only just before doing disk operation. Therefore only when needed. sql/sql_yacc.yy: lex->et and lex->et_parse_phase are no more Use the specialized for parsing Event_parse_data
2006-06-29 00:42:25 +02:00
{
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
table->field[ET_FIELD_DB]->store(new_dbname->str, new_dbname->length, scs);
table->field[ET_FIELD_NAME]->store(new_name->str, new_name->length, scs);
}
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
if ((ret= table->file->ha_update_row(table->record[1], table->record[0])))
{
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
table->file->print_error(ret, MYF(0));
goto end;
}
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
ret= 0;
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
end:
Patch that refactors global read lock implementation and fixes bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK" and bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'". The first bug manifested itself as a deadlock which occurred when a connection, which had some table open through HANDLER statement, tried to update some data through DML statement while another connection tried to execute FLUSH TABLES WITH READ LOCK concurrently. What happened was that FTWRL in the second connection managed to perform first step of GRL acquisition and thus blocked all upcoming DML. After that it started to wait for table open through HANDLER statement to be flushed. When the first connection tried to execute DML it has started to wait for GRL/the second connection creating deadlock. The second bug manifested itself as starvation of FLUSH TABLES WITH READ LOCK statements in cases when there was a constant stream of concurrent DML statements (in two or more connections). This has happened because requests for protection against GRL which were acquired by DML statements were ignoring presence of pending GRL and thus the latter was starved. This patch solves both these problems by re-implementing GRL using metadata locks. Similar to the old implementation acquisition of GRL in new implementation is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. The first problem is solved because waits for GRL become visible to deadlock detector in metadata locking subsystem and thus deadlocks like one in the first bug become impossible. The second problem is solved because global S locks which are used for GRL implementation are given preference over IX locks which are acquired by concurrent DML (and we can switch to fair scheduling in future if needed). Important change: FTWRL/GRL no longer blocks DML and DDL on temporary tables. Before this patch behavior was not consistent in this respect: in some cases DML/DDL statements on temporary tables were blocked while in others they were not. Since the main use cases for FTWRL are various forms of backups and temporary tables are not preserved during backups we have opted for consistently allowing DML/DDL on temporary tables during FTWRL/GRL. Important change: This patch changes thread state names which are used when DML/DDL of FTWRL is waiting for global read lock. It is now either "Waiting for global read lock" or "Waiting for commit lock" depending on the stage on which FTWRL is. Incompatible change: To solve deadlock in events code which was exposed by this patch we have to replace LOCK_event_metadata mutex with metadata locks on events. As result we have to prohibit DDL on events under LOCK TABLES. This patch also adds extensive test coverage for interaction of DML/DDL and FTWRL. Performance of new and old global read lock implementations in sysbench tests were compared. There were no significant difference between new and old implementations. mysql-test/include/check_ftwrl_compatible.inc: Added helper script which allows to check that a statement is compatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/check_ftwrl_incompatible.inc: Added helper script which allows to check that a statement is incompatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/handler.inc: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/include/wait_show_condition.inc: Fixed small error in the timeout message. The correct name of variable used as parameter for this script is "$condition" and not "$wait_condition". mysql-test/r/delayed.result: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/r/events_2.result: Updated test results after prohibiting event DDL operations under LOCK TABLES. mysql-test/r/flush.result: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/r/flush_read_lock.result: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/r/flush_read_lock_kill.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/r/handler_innodb.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/handler_myisam.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/mdl_sync.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. mysql-test/suite/perfschema/r/dml_setup_instruments.result: Updated test results after removing global COND_global_read_lock condition variable. mysql-test/suite/perfschema/r/func_file_io.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/func_mutex.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/global_read_lock.result: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/r/server_init.result: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/perfschema/t/func_file_io.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/func_mutex.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/global_read_lock.test: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/t/server_init.test: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/rpl/r/rpl_tmp_table_and_DDL.result: Updated test results after prohibiting event DDL under LOCK TABLES. mysql-test/t/delayed.test: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/t/events_2.test: Updated test case after prohibiting event DDL operations under LOCK TABLES. mysql-test/t/flush.test: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/t/flush_block_commit.test: Adjusted test case after changing thread state name which is used when COMMIT waits for FLUSH TABLES WITH READ LOCK from "Waiting for release of readlock" to "Waiting for commit lock". mysql-test/t/flush_block_commit_notembedded.test: Adjusted test case after changing thread state name which is used when DML waits for FLUSH TABLES WITH READ LOCK. Now we use "Waiting for global read lock" in this case. mysql-test/t/flush_read_lock.test: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/t/flush_read_lock_kill-master.opt: We no longer need to use make_global_read_lock_block_commit_loop debug tag in this test. Instead we rely on an appropriate debug_sync point in MDL code. mysql-test/t/flush_read_lock_kill.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/t/lock_multi.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". mysql-test/t/mdl_sync.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. Updated thread state names which are used when DDL waits for FTWRL. mysql-test/t/trigger_notembedded.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". sql/event_data_objects.cc: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_data_objects.h: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_db_repository.cc: - Changed Event_db_repository methods to not release all metadata locks once they are done updating mysql.events table. This allows to keep metadata lock protecting against GRL and lock protecting particular event around until corresponding DDL statement is written to the binary log. - Removed logic for conditional update of "status" and "last_executed" fields from update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" is too much hassle. sql/event_db_repository.h: Removed logic for conditional update of "status" and "last_executed" fields from Event_db_repository:: update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" field is too much hassle. sql/event_queue.cc: Changed event scheduler code not to update mysql.events table while holding Event_queue::LOCK_event_queue mutex. Doing so led to a deadlock with a new GRL implementation. This deadlock didn't occur with old implementation due to fact that code acquiring protection against GRL ignored pending GRL requests (which lead to GRL starvation). One of goals of new implementation is to disallow GRL starvation and so we have to solve problem with this deadlock in a different way. sql/events.cc: Changed methods of Events class to acquire protection against GRL while perfoming DDL statement and keep it until statement is written to the binary log. Unfortunately this step together with new GRL implementation exposed deadlock involving Events::LOCK_event_metadata and GRL. To solve it Events::LOCK_event_metadata mutex was replaced with a metadata lock on event. As a side-effect events DDL has to be prohibited under LOCK TABLES even in cases when mysql.events table was explicitly locked for write. sql/events.h: Replaced Events::LOCK_event_metadata mutex with a metadata lock on event. sql/ha_ndbcluster.cc: Updated code after replacing custom global read lock implementation with one based on MDL. Since MDL subsystem should now be able to detect deadlocks involving metadata locks and GRL there is no need for special handling of active GRL. sql/handler.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. sql/lock.cc: Replaced custom implementation of global read lock with one based on metadata locks. This step allows to expose wait for GRL to deadlock detector of MDL subsystem and thus succesfully resolve deadlocks similar to one behind bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". It also solves problem with GRL starvation described in bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'" since metadata locks used by GRL give preference to FTWRL statement instead of DML statements (if needed in future this can be changed to fair scheduling). Similar to old implementation of acquisition of GRL is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. To support this change: - Global_read_lock::lock/unlock_global_read_lock and make_global_read_lock_block_commit methods were changed accordingly. - Global_read_lock::wait_if_global_read_lock() and start_waiting_global_read_lock() methods were dropped. It is now responsibility of code acquiring metadata locks opening tables to acquire protection against GRL by explicitly taking global IX lock with statement duration. - Global variables, mutex and condition variable used by old implementation was removed. - lock_routine_name() was changed to use statement duration for its global IX lock. It was also renamed to lock_object_name() as it now also used to take metadata locks on events. - Global_read_lock::set_explicit_lock_duration() was added which allows not to release locks used for GRL when leaving prelocked mode. sql/lock.h: - Renamed lock_routine_name() to lock_object_name() and changed its signature to allow its usage for events. - Removed broadcast_refresh() function. It is no longer needed with new GRL implementation. sql/log_event.cc: Release metadata locks with statement duration at the end of processing legacy event for LOAD DATA. This ensures that replication thread processing such event properly releases its protection against global read lock. sql/mdl.cc: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Changed thread state name for GLOBAL namespace to "Waiting for global read lock". Optimized MDL_map::find_or_insert() method to avoid taking m_mutex mutex when looking up MDL_lock objects for GLOBAL or COMMIT namespaces. We keep pre-created MDL_lock objects for these namespaces around and simply return pointers to these global objects when needed. Changed MDL_lock/MDL_scoped_lock to properly handle notification of insert delayed handler threads when FTWRL takes global S lock. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mdl.h: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mysqld.cc: Removed global mutex and condition variables which were used by old implementation of GRL. Also we no longer need to initialize Events::LOCK_event_metadata mutex as it was replaced with metadata locks on events. sql/mysqld.h: Removed global variable, mutex and condition variables which were used by old implementation of GRL. sql/rpl_rli.cc: When slave thread closes tables which were open for handling of RBR events ensure that it releases global IX lock which was acquired as protection against GRL. sql/sp.cc: Adjusted code to the new signature of lock_object/routine_name(), to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sp_head.cc: Ensure that statements in stored procedures release statement metadata locks and thus release their protectiong against GRL in proper moment in time. Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_admin.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_base.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. Code doing this also responsible for checking that current connection has no active GRL by calling an Global_read_lock::can_acquire_protection() method. Changed code in open_table() and lock_table_names() accordingly. Note that as result of this change DDL and DML on temporary tables is always compatible with GRL (before it was incompatible in some cases and compatible in other cases). - To speed-up code acquiring protection against GRL introduced m_has_protection_against_grl member in Open_table_context class. It indicates that protection was already acquired sometime during open_tables() execution and new attempts can be skipped. - Thanks to new GRL implementation calls to broadcast_refresh() became unnecessary and were removed. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_base.h: Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. Also introduced Open_table_context::m_has_protection_against_grl member which allows to avoid acquiring protection against GRL while opening tables if such protection was already acquired. sql/sql_class.cc: Changed THD::leave_locked_tables_mode() after transactional sentinel for metadata locks was obsoleted by introduction of locks with explicit duration. sql/sql_class.h: - Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. - Changed Global_read_lock class according to changes in global read lock implementation: * wait_if_global_read_lock and start_waiting_global_read_lock are now gone. Instead code needing protection against GRL has to acquire global IX metadata lock with statement duration itself. To help it new can_acquire_protection() was introduced. Also as result of the above change m_protection_count member is gone too. * Added m_mdl_blocks_commits_lock member to store metadata lock blocking commits. * Adjusted code to the fact that concept of transactional sentinel was obsoleted by concept of lock duration. - Removed CF_PROTECT_AGAINST_GRL flag as it is no longer necessary. New GRL implementation acquires protection against global read lock automagically when statement acquires metadata locks on tables or other objects it is going to change. sql/sql_db.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_handler.cc: Removed call to broadcast_refresh() function. It is no longer needed with new GRL implementation. Adjusted code after introducing duration concept for metadata locks. Particularly to the fact transactional sentinel was replaced with explicit duration. sql/sql_handler.h: Renamed mysql_ha_move_tickets_after_trans_sentinel() to mysql_ha_set_explicit_lock_duration() after transactional sentinel was obsoleted by locks with explicit duration. sql/sql_insert.cc: Adjusted code handling delaying inserts after switching to new GRL implementation. Now connection thread initiating delayed insert has to acquire global IX lock in addition to metadata lock on table being inserted into. This IX lock protects against GRL and similarly to SW lock on table being inserted into has to be passed to handler thread in order to avoid deadlocks. sql/sql_lex.cc: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_lex.h: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_parse.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. This lock is automatically released at the end of statement execution. - Changed implementation of CREATE/DROP PROCEDURE/FUNCTION not to release metadata locks and thus protection against of GRL in the middle of statement execution. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_prepare.cc: Adjusted code to the to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_rename.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before renaming tables. This happens automatically in code which acquires metadata locks on tables being renamed. sql/sql_show.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_table.cc: - With new GRL implementation there is no need to explicitly acquire protection against GRL before dropping tables. This happens automatically in code which acquires metadata locks on tables being dropped. - Changed mysql_alter_table() not to release lock on new table name explicitly and to rely on automatic release of locks at the end of statement instead. This was necessary since now MDL_context::release_lock() is supported only for locks for explicit duration. sql/sql_trigger.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before changing table triggers. This happens automatically in code which acquires metadata locks on tables which triggers are to be changed. sql/sql_update.cc: Fix bug exposed by GRL testing. During prepare phase acquire only S metadata locks instead of SW locks to keep prepare of multi-UPDATE compatible with concurrent LOCK TABLES WRITE and global read lock. sql/sql_view.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before creating view. This happens automatically in code which acquires metadata lock on view to be created. sql/sql_yacc.yy: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/table.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/table.h: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/transaction.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. Also adjusted code to the fact that MDL savepoint is now represented by MDL_savepoint class.
2010-11-11 18:11:05 +01:00
close_thread_tables(thd);
thd->mdl_context.rollback_to_savepoint(mdl_savepoint);
A pre-requisite patch for the fix for Bug#52044. This patch also fixes Bug#55452 "SET PASSWORD is replicated twice in RBR mode". The goal of this patch is to remove the release of metadata locks from close_thread_tables(). This is necessary to not mistakenly release the locks in the course of a multi-step operation that involves multiple close_thread_tables() or close_tables_for_reopen(). On the same token, move statement commit outside close_thread_tables(). Other cleanups: Cleanup COM_FIELD_LIST. Don't call close_thread_tables() in COM_SHUTDOWN -- there are no open tables there that can be closed (we leave the locked tables mode in THD destructor, and this close_thread_tables() won't leave it anyway). Make open_and_lock_tables() and open_and_lock_tables_derived() call close_thread_tables() upon failure. Remove the calls to close_thread_tables() that are now unnecessary. Simplify the back off condition in Open_table_context. Streamline metadata lock handling in LOCK TABLES implementation. Add asserts to ensure correct life cycle of statement transaction in a session. Remove a piece of dead code that has also become redundant after the fix for Bug 37521. mysql-test/r/variables.result: Update results: set @@autocommit and statement transaction/ prelocked mode. mysql-test/r/view.result: A harmless change in CHECK TABLE <view> status for a broken view. If previously a failure to prelock all functions used in a view would leave the connection in LTM_PRELOCKED mode, now we call close_thread_tables() from open_and_lock_tables() and leave prelocked mode, thus some check in mysql_admin_table() that works only in prelocked/locked tables mode is no longer activated. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Fixed Bug#55452 "SET PASSWORD is replicated twice in RBR mode": extra binlog events are gone from the binary log. mysql-test/t/variables.test: Add a test case: set autocommit and statement transaction/prelocked mode. sql/event_data_objects.cc: Simplify code in Event_job_data::execute(). Move sp_head memory management to lex_end(). sql/event_db_repository.cc: Move the release of metadata locks outside close_thread_tables(). Make sure we call close_thread_tables() when open_and_lock_tables() fails and remove extra code from the events data dictionary. Use close_mysql_tables(), a new internal function to properly close mysql.* tables in the data dictionary. Contract Event_db_repository::drop_events_by_field, drop_schema_events into one function. When dropping all events in a schema, make sure we don't mistakenly release all locks acquired by DROP DATABASE. These include locks on the database name and the global intention exclusive metadata lock. sql/event_db_repository.h: Function open_event_table() does not require an instance of Event_db_repository. sql/events.cc: Use close_mysql_tables() instead of close_thread_tables() to bootstrap events, since the latter no longer releases metadata locks. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 no longer releases acquired metadata locks. Do it in the caller. sql/ha_ndbcluster_binlog.cc: Deploy the new protocol for closing thread tables in run_query() and ndb_binlog_index code. sql/handler.cc: Assert that we never call ha_commit_trans/ ha_rollback_trans in sub-statement, which is now the case. sql/handler.h: Add an accessor to check whether THD_TRANS object is empty (has no transaction started). sql/log.cc: Update a comment. sql/log_event.cc: Since now we commit/rollback statement transaction in mysql_execute_command(), we need a mechanism to communicate from Query_log_event::do_apply_event() to mysql_execute_command() that the statement transaction should be rolled back, not committed. Ideally it would be a virtual method of THD. I hesitate to make THD a virtual base class in this already large patch. Use a thd->variables.option_bits for now. Remove a call to close_thread_tables() from the slave IO thread. It doesn't open any tables, and the protocol for closing thread tables is more complicated now. Make sure we properly close thread tables, however, in Load_data_log_event, which doesn't follow the standard server execution procedure with mysql_execute_command(). @todo: this piece should use Server_runnable framework instead. Remove an unnecessary call to mysql_unlock_tables(). sql/rpl_rli.cc: Update Relay_log_info::slave_close_thread_tables() to follow the new close protocol. sql/set_var.cc: Remove an unused header. sql/slave.cc: Remove an unnecessary call to close_thread_tables(). sql/sp.cc: Remove unnecessary calls to close_thread_tables() from SP DDL implementation. The tables will be closed by the caller, in mysql_execute_command(). When dropping all routines in a database, make sure to not mistakenly drop all metadata locks acquired so far, they include the scoped lock on the schema. sql/sp_head.cc: Correct the protocol that closes thread tables in an SP instruction. Clear lex->sphead before cleaning up lex with lex_end to make sure that we don't delete the sphead twice. It's considered to be "cleaner" and more in line with future changes than calling delete lex->sphead in other places that cleanup the lex. sql/sp_head.h: When destroying m_lex_keeper of an instruction, don't delete the sphead that all lex objects share. @todo: don't store a reference to routine's sp_head instance in instruction's lex. sql/sql_acl.cc: Don't call close_thread_tables() where the caller will do that for us. Fix Bug#55452 "SET PASSWORD is replicated twice in RBR mode" by disabling RBR replication in change_password() function. Use close_mysql_tables() in bootstrap and ACL reload code to make sure we release all metadata locks. sql/sql_base.cc: This is the main part of the patch: - remove manipulation with thd->transaction and thd->mdl_context from close_thread_tables(). Now this function is only responsible for closing tables, nothing else. This is necessary to be able to easily use close_thread_tables() in procedures, that involve multiple open/close tables, which all need to be protected continuously by metadata locks. Add asserts ensuring that TABLE object is only used when is protected by a metadata lock. Simplify the back off condition of Open_table_context, we no longer need to look at the autocommit mode. Make open_and_lock_tables() and open_normal_and_derived_tables() close thread tables and release metadata locks acquired so-far upon failure. This simplifies their usage. Implement close_mysql_tables(). sql/sql_base.h: Add declaration for close_mysql_tables(). sql/sql_class.cc: Remove a piece of dead code that has also become redundant after the fix for Bug 37521. The code became dead when my_eof() was made a non-protocol method, but a method that merely modifies the diagnostics area. The code became redundant with the fix for Bug#37521, when we started to cal close_thread_tables() before Protocol::end_statement(). sql/sql_do.cc: Do nothing in DO if inside a substatement (the assert moved out of trans_rollback_stmt). sql/sql_handler.cc: Add comments. sql/sql_insert.cc: Remove dead code. Release metadata locks explicitly at the end of the delayed insert thread. sql/sql_lex.cc: Add destruction of lex->sphead to lex_end(), lex "reset" method called at the end of each statement. sql/sql_parse.cc: Move close_thread_tables() and other related cleanups to mysql_execute_command() from dispatch_command(). This has become possible after the fix for Bug#37521. Mark federated SERVER statements as DDL. Next step: make sure that we don't store eof packet in the query cache, and move the query cache code outside mysql_parse. Brush up the code of COM_FIELD_LIST. Remove unnecessary calls to close_thread_tables(). When killing a query, don't report "OK" if it was a suicide. sql/sql_parse.h: Remove declaration of a function that is now static. sql/sql_partition.cc: Remove an unnecessary call to close_thread_tables(). sql/sql_plugin.cc: open_and_lock_tables() will clean up after itself after a failure. Move close_thread_tables() above end: label, and replace with close_mysql_tables(), which will also release the metadata lock on mysql.plugin. sql/sql_prepare.cc: Now that we no longer release locks in close_thread_tables() statement prepare code has become more straightforward. Remove the now redundant check for thd->killed() (used only by the backup project) from Execute_server_runnable. Reorder code to take into account that now mysql_execute_command() performs lex->unit.cleanup() and close_thread_tables(). sql/sql_priv.h: Add a new option to server options to interact between the slave SQL thread and execution framework (hack). @todo: use a virtual method of class THD instead. sql/sql_servers.cc: Due to Bug 25705 replication of DROP/CREATE/ALTER SERVER is broken. Make sure at least we do not attempt to replicate these statements using RBR, as this violates the assert in close_mysql_tables(). sql/sql_table.cc: Do not release metadata locks in mysql_rm_table_part2, this is done by the caller. Do not call close_thread_tables() in mysql_create_table(), this is done by the caller. Fix a bug in DROP TABLE under LOCK TABLES when, upon error in wait_while_table_is_used() we would mistakenly release the metadata lock on a non-dropped table. Explicitly release metadata locks when doing an implicit commit. sql/sql_trigger.cc: Now that we delete lex->sphead in lex_end(), zero the trigger's sphead in lex after loading the trigger, to avoid double deletion. sql/sql_udf.cc: Use close_mysql_tables() instead of close_thread_tables(). sql/sys_vars.cc: Remove code added in scope of WL#4284 which would break when we perform set @@session.autocommit along with setting other variables and using tables or functions. A test case added to variables.test. sql/transaction.cc: Add asserts. sql/tztime.cc: Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 12:25:53 +02:00
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
thd->variables.sql_mode= saved_mode;
DBUG_RETURN(MY_TEST(ret));
}
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
/**
Delete event record from mysql.event table.
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
@param[in,out] thd thread handle
@param[in] db Database name
@param[in] name Event name
@param[in] drop_if_exists DROP IF EXISTS clause was specified.
If set, and the event does not exist,
the error is downgraded to a warning.
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
@retval FALSE success
@retval TRUE error (reported)
*/
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
bool
Event_db_repository::drop_event(THD *thd, LEX_STRING db, LEX_STRING name,
bool drop_if_exists)
{
TABLE *table= NULL;
Patch that refactors global read lock implementation and fixes bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK" and bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'". The first bug manifested itself as a deadlock which occurred when a connection, which had some table open through HANDLER statement, tried to update some data through DML statement while another connection tried to execute FLUSH TABLES WITH READ LOCK concurrently. What happened was that FTWRL in the second connection managed to perform first step of GRL acquisition and thus blocked all upcoming DML. After that it started to wait for table open through HANDLER statement to be flushed. When the first connection tried to execute DML it has started to wait for GRL/the second connection creating deadlock. The second bug manifested itself as starvation of FLUSH TABLES WITH READ LOCK statements in cases when there was a constant stream of concurrent DML statements (in two or more connections). This has happened because requests for protection against GRL which were acquired by DML statements were ignoring presence of pending GRL and thus the latter was starved. This patch solves both these problems by re-implementing GRL using metadata locks. Similar to the old implementation acquisition of GRL in new implementation is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. The first problem is solved because waits for GRL become visible to deadlock detector in metadata locking subsystem and thus deadlocks like one in the first bug become impossible. The second problem is solved because global S locks which are used for GRL implementation are given preference over IX locks which are acquired by concurrent DML (and we can switch to fair scheduling in future if needed). Important change: FTWRL/GRL no longer blocks DML and DDL on temporary tables. Before this patch behavior was not consistent in this respect: in some cases DML/DDL statements on temporary tables were blocked while in others they were not. Since the main use cases for FTWRL are various forms of backups and temporary tables are not preserved during backups we have opted for consistently allowing DML/DDL on temporary tables during FTWRL/GRL. Important change: This patch changes thread state names which are used when DML/DDL of FTWRL is waiting for global read lock. It is now either "Waiting for global read lock" or "Waiting for commit lock" depending on the stage on which FTWRL is. Incompatible change: To solve deadlock in events code which was exposed by this patch we have to replace LOCK_event_metadata mutex with metadata locks on events. As result we have to prohibit DDL on events under LOCK TABLES. This patch also adds extensive test coverage for interaction of DML/DDL and FTWRL. Performance of new and old global read lock implementations in sysbench tests were compared. There were no significant difference between new and old implementations. mysql-test/include/check_ftwrl_compatible.inc: Added helper script which allows to check that a statement is compatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/check_ftwrl_incompatible.inc: Added helper script which allows to check that a statement is incompatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/handler.inc: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/include/wait_show_condition.inc: Fixed small error in the timeout message. The correct name of variable used as parameter for this script is "$condition" and not "$wait_condition". mysql-test/r/delayed.result: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/r/events_2.result: Updated test results after prohibiting event DDL operations under LOCK TABLES. mysql-test/r/flush.result: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/r/flush_read_lock.result: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/r/flush_read_lock_kill.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/r/handler_innodb.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/handler_myisam.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/mdl_sync.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. mysql-test/suite/perfschema/r/dml_setup_instruments.result: Updated test results after removing global COND_global_read_lock condition variable. mysql-test/suite/perfschema/r/func_file_io.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/func_mutex.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/global_read_lock.result: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/r/server_init.result: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/perfschema/t/func_file_io.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/func_mutex.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/global_read_lock.test: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/t/server_init.test: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/rpl/r/rpl_tmp_table_and_DDL.result: Updated test results after prohibiting event DDL under LOCK TABLES. mysql-test/t/delayed.test: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/t/events_2.test: Updated test case after prohibiting event DDL operations under LOCK TABLES. mysql-test/t/flush.test: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/t/flush_block_commit.test: Adjusted test case after changing thread state name which is used when COMMIT waits for FLUSH TABLES WITH READ LOCK from "Waiting for release of readlock" to "Waiting for commit lock". mysql-test/t/flush_block_commit_notembedded.test: Adjusted test case after changing thread state name which is used when DML waits for FLUSH TABLES WITH READ LOCK. Now we use "Waiting for global read lock" in this case. mysql-test/t/flush_read_lock.test: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/t/flush_read_lock_kill-master.opt: We no longer need to use make_global_read_lock_block_commit_loop debug tag in this test. Instead we rely on an appropriate debug_sync point in MDL code. mysql-test/t/flush_read_lock_kill.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/t/lock_multi.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". mysql-test/t/mdl_sync.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. Updated thread state names which are used when DDL waits for FTWRL. mysql-test/t/trigger_notembedded.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". sql/event_data_objects.cc: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_data_objects.h: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_db_repository.cc: - Changed Event_db_repository methods to not release all metadata locks once they are done updating mysql.events table. This allows to keep metadata lock protecting against GRL and lock protecting particular event around until corresponding DDL statement is written to the binary log. - Removed logic for conditional update of "status" and "last_executed" fields from update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" is too much hassle. sql/event_db_repository.h: Removed logic for conditional update of "status" and "last_executed" fields from Event_db_repository:: update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" field is too much hassle. sql/event_queue.cc: Changed event scheduler code not to update mysql.events table while holding Event_queue::LOCK_event_queue mutex. Doing so led to a deadlock with a new GRL implementation. This deadlock didn't occur with old implementation due to fact that code acquiring protection against GRL ignored pending GRL requests (which lead to GRL starvation). One of goals of new implementation is to disallow GRL starvation and so we have to solve problem with this deadlock in a different way. sql/events.cc: Changed methods of Events class to acquire protection against GRL while perfoming DDL statement and keep it until statement is written to the binary log. Unfortunately this step together with new GRL implementation exposed deadlock involving Events::LOCK_event_metadata and GRL. To solve it Events::LOCK_event_metadata mutex was replaced with a metadata lock on event. As a side-effect events DDL has to be prohibited under LOCK TABLES even in cases when mysql.events table was explicitly locked for write. sql/events.h: Replaced Events::LOCK_event_metadata mutex with a metadata lock on event. sql/ha_ndbcluster.cc: Updated code after replacing custom global read lock implementation with one based on MDL. Since MDL subsystem should now be able to detect deadlocks involving metadata locks and GRL there is no need for special handling of active GRL. sql/handler.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. sql/lock.cc: Replaced custom implementation of global read lock with one based on metadata locks. This step allows to expose wait for GRL to deadlock detector of MDL subsystem and thus succesfully resolve deadlocks similar to one behind bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". It also solves problem with GRL starvation described in bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'" since metadata locks used by GRL give preference to FTWRL statement instead of DML statements (if needed in future this can be changed to fair scheduling). Similar to old implementation of acquisition of GRL is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. To support this change: - Global_read_lock::lock/unlock_global_read_lock and make_global_read_lock_block_commit methods were changed accordingly. - Global_read_lock::wait_if_global_read_lock() and start_waiting_global_read_lock() methods were dropped. It is now responsibility of code acquiring metadata locks opening tables to acquire protection against GRL by explicitly taking global IX lock with statement duration. - Global variables, mutex and condition variable used by old implementation was removed. - lock_routine_name() was changed to use statement duration for its global IX lock. It was also renamed to lock_object_name() as it now also used to take metadata locks on events. - Global_read_lock::set_explicit_lock_duration() was added which allows not to release locks used for GRL when leaving prelocked mode. sql/lock.h: - Renamed lock_routine_name() to lock_object_name() and changed its signature to allow its usage for events. - Removed broadcast_refresh() function. It is no longer needed with new GRL implementation. sql/log_event.cc: Release metadata locks with statement duration at the end of processing legacy event for LOAD DATA. This ensures that replication thread processing such event properly releases its protection against global read lock. sql/mdl.cc: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Changed thread state name for GLOBAL namespace to "Waiting for global read lock". Optimized MDL_map::find_or_insert() method to avoid taking m_mutex mutex when looking up MDL_lock objects for GLOBAL or COMMIT namespaces. We keep pre-created MDL_lock objects for these namespaces around and simply return pointers to these global objects when needed. Changed MDL_lock/MDL_scoped_lock to properly handle notification of insert delayed handler threads when FTWRL takes global S lock. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mdl.h: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mysqld.cc: Removed global mutex and condition variables which were used by old implementation of GRL. Also we no longer need to initialize Events::LOCK_event_metadata mutex as it was replaced with metadata locks on events. sql/mysqld.h: Removed global variable, mutex and condition variables which were used by old implementation of GRL. sql/rpl_rli.cc: When slave thread closes tables which were open for handling of RBR events ensure that it releases global IX lock which was acquired as protection against GRL. sql/sp.cc: Adjusted code to the new signature of lock_object/routine_name(), to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sp_head.cc: Ensure that statements in stored procedures release statement metadata locks and thus release their protectiong against GRL in proper moment in time. Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_admin.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_base.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. Code doing this also responsible for checking that current connection has no active GRL by calling an Global_read_lock::can_acquire_protection() method. Changed code in open_table() and lock_table_names() accordingly. Note that as result of this change DDL and DML on temporary tables is always compatible with GRL (before it was incompatible in some cases and compatible in other cases). - To speed-up code acquiring protection against GRL introduced m_has_protection_against_grl member in Open_table_context class. It indicates that protection was already acquired sometime during open_tables() execution and new attempts can be skipped. - Thanks to new GRL implementation calls to broadcast_refresh() became unnecessary and were removed. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_base.h: Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. Also introduced Open_table_context::m_has_protection_against_grl member which allows to avoid acquiring protection against GRL while opening tables if such protection was already acquired. sql/sql_class.cc: Changed THD::leave_locked_tables_mode() after transactional sentinel for metadata locks was obsoleted by introduction of locks with explicit duration. sql/sql_class.h: - Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. - Changed Global_read_lock class according to changes in global read lock implementation: * wait_if_global_read_lock and start_waiting_global_read_lock are now gone. Instead code needing protection against GRL has to acquire global IX metadata lock with statement duration itself. To help it new can_acquire_protection() was introduced. Also as result of the above change m_protection_count member is gone too. * Added m_mdl_blocks_commits_lock member to store metadata lock blocking commits. * Adjusted code to the fact that concept of transactional sentinel was obsoleted by concept of lock duration. - Removed CF_PROTECT_AGAINST_GRL flag as it is no longer necessary. New GRL implementation acquires protection against global read lock automagically when statement acquires metadata locks on tables or other objects it is going to change. sql/sql_db.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_handler.cc: Removed call to broadcast_refresh() function. It is no longer needed with new GRL implementation. Adjusted code after introducing duration concept for metadata locks. Particularly to the fact transactional sentinel was replaced with explicit duration. sql/sql_handler.h: Renamed mysql_ha_move_tickets_after_trans_sentinel() to mysql_ha_set_explicit_lock_duration() after transactional sentinel was obsoleted by locks with explicit duration. sql/sql_insert.cc: Adjusted code handling delaying inserts after switching to new GRL implementation. Now connection thread initiating delayed insert has to acquire global IX lock in addition to metadata lock on table being inserted into. This IX lock protects against GRL and similarly to SW lock on table being inserted into has to be passed to handler thread in order to avoid deadlocks. sql/sql_lex.cc: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_lex.h: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_parse.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. This lock is automatically released at the end of statement execution. - Changed implementation of CREATE/DROP PROCEDURE/FUNCTION not to release metadata locks and thus protection against of GRL in the middle of statement execution. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_prepare.cc: Adjusted code to the to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_rename.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before renaming tables. This happens automatically in code which acquires metadata locks on tables being renamed. sql/sql_show.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_table.cc: - With new GRL implementation there is no need to explicitly acquire protection against GRL before dropping tables. This happens automatically in code which acquires metadata locks on tables being dropped. - Changed mysql_alter_table() not to release lock on new table name explicitly and to rely on automatic release of locks at the end of statement instead. This was necessary since now MDL_context::release_lock() is supported only for locks for explicit duration. sql/sql_trigger.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before changing table triggers. This happens automatically in code which acquires metadata locks on tables which triggers are to be changed. sql/sql_update.cc: Fix bug exposed by GRL testing. During prepare phase acquire only S metadata locks instead of SW locks to keep prepare of multi-UPDATE compatible with concurrent LOCK TABLES WRITE and global read lock. sql/sql_view.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before creating view. This happens automatically in code which acquires metadata lock on view to be created. sql/sql_yacc.yy: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/table.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/table.h: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/transaction.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. Also adjusted code to the fact that MDL savepoint is now represented by MDL_savepoint class.
2010-11-11 18:11:05 +01:00
/*
Take a savepoint to release only the lock on mysql.event
table at the end but keep the global read lock and
possible other locks taken by the caller.
*/
MDL_savepoint mdl_savepoint= thd->mdl_context.mdl_savepoint();
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
int ret= 1;
DBUG_ENTER("Event_db_repository::drop_event");
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
DBUG_PRINT("enter", ("%s@%s", db.str, name.str));
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
if (open_event_table(thd, TL_WRITE, &table))
goto end;
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
if (!find_named_event(db, name, table))
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
{
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
if ((ret= table->file->ha_delete_row(table->record[0])))
table->file->print_error(ret, MYF(0));
goto end;
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
}
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
/* Event not found */
if (!drop_if_exists)
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
{
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
my_error(ER_EVENT_DOES_NOT_EXIST, MYF(0), name.str);
goto end;
}
push_warning_printf(thd, Sql_condition::WARN_LEVEL_NOTE,
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
ER_SP_DOES_NOT_EXIST, ER(ER_SP_DOES_NOT_EXIST),
"Event", name.str);
ret= 0;
end:
Patch that refactors global read lock implementation and fixes bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK" and bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'". The first bug manifested itself as a deadlock which occurred when a connection, which had some table open through HANDLER statement, tried to update some data through DML statement while another connection tried to execute FLUSH TABLES WITH READ LOCK concurrently. What happened was that FTWRL in the second connection managed to perform first step of GRL acquisition and thus blocked all upcoming DML. After that it started to wait for table open through HANDLER statement to be flushed. When the first connection tried to execute DML it has started to wait for GRL/the second connection creating deadlock. The second bug manifested itself as starvation of FLUSH TABLES WITH READ LOCK statements in cases when there was a constant stream of concurrent DML statements (in two or more connections). This has happened because requests for protection against GRL which were acquired by DML statements were ignoring presence of pending GRL and thus the latter was starved. This patch solves both these problems by re-implementing GRL using metadata locks. Similar to the old implementation acquisition of GRL in new implementation is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. The first problem is solved because waits for GRL become visible to deadlock detector in metadata locking subsystem and thus deadlocks like one in the first bug become impossible. The second problem is solved because global S locks which are used for GRL implementation are given preference over IX locks which are acquired by concurrent DML (and we can switch to fair scheduling in future if needed). Important change: FTWRL/GRL no longer blocks DML and DDL on temporary tables. Before this patch behavior was not consistent in this respect: in some cases DML/DDL statements on temporary tables were blocked while in others they were not. Since the main use cases for FTWRL are various forms of backups and temporary tables are not preserved during backups we have opted for consistently allowing DML/DDL on temporary tables during FTWRL/GRL. Important change: This patch changes thread state names which are used when DML/DDL of FTWRL is waiting for global read lock. It is now either "Waiting for global read lock" or "Waiting for commit lock" depending on the stage on which FTWRL is. Incompatible change: To solve deadlock in events code which was exposed by this patch we have to replace LOCK_event_metadata mutex with metadata locks on events. As result we have to prohibit DDL on events under LOCK TABLES. This patch also adds extensive test coverage for interaction of DML/DDL and FTWRL. Performance of new and old global read lock implementations in sysbench tests were compared. There were no significant difference between new and old implementations. mysql-test/include/check_ftwrl_compatible.inc: Added helper script which allows to check that a statement is compatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/check_ftwrl_incompatible.inc: Added helper script which allows to check that a statement is incompatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/handler.inc: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/include/wait_show_condition.inc: Fixed small error in the timeout message. The correct name of variable used as parameter for this script is "$condition" and not "$wait_condition". mysql-test/r/delayed.result: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/r/events_2.result: Updated test results after prohibiting event DDL operations under LOCK TABLES. mysql-test/r/flush.result: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/r/flush_read_lock.result: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/r/flush_read_lock_kill.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/r/handler_innodb.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/handler_myisam.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/mdl_sync.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. mysql-test/suite/perfschema/r/dml_setup_instruments.result: Updated test results after removing global COND_global_read_lock condition variable. mysql-test/suite/perfschema/r/func_file_io.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/func_mutex.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/global_read_lock.result: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/r/server_init.result: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/perfschema/t/func_file_io.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/func_mutex.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/global_read_lock.test: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/t/server_init.test: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/rpl/r/rpl_tmp_table_and_DDL.result: Updated test results after prohibiting event DDL under LOCK TABLES. mysql-test/t/delayed.test: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/t/events_2.test: Updated test case after prohibiting event DDL operations under LOCK TABLES. mysql-test/t/flush.test: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/t/flush_block_commit.test: Adjusted test case after changing thread state name which is used when COMMIT waits for FLUSH TABLES WITH READ LOCK from "Waiting for release of readlock" to "Waiting for commit lock". mysql-test/t/flush_block_commit_notembedded.test: Adjusted test case after changing thread state name which is used when DML waits for FLUSH TABLES WITH READ LOCK. Now we use "Waiting for global read lock" in this case. mysql-test/t/flush_read_lock.test: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/t/flush_read_lock_kill-master.opt: We no longer need to use make_global_read_lock_block_commit_loop debug tag in this test. Instead we rely on an appropriate debug_sync point in MDL code. mysql-test/t/flush_read_lock_kill.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/t/lock_multi.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". mysql-test/t/mdl_sync.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. Updated thread state names which are used when DDL waits for FTWRL. mysql-test/t/trigger_notembedded.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". sql/event_data_objects.cc: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_data_objects.h: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_db_repository.cc: - Changed Event_db_repository methods to not release all metadata locks once they are done updating mysql.events table. This allows to keep metadata lock protecting against GRL and lock protecting particular event around until corresponding DDL statement is written to the binary log. - Removed logic for conditional update of "status" and "last_executed" fields from update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" is too much hassle. sql/event_db_repository.h: Removed logic for conditional update of "status" and "last_executed" fields from Event_db_repository:: update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" field is too much hassle. sql/event_queue.cc: Changed event scheduler code not to update mysql.events table while holding Event_queue::LOCK_event_queue mutex. Doing so led to a deadlock with a new GRL implementation. This deadlock didn't occur with old implementation due to fact that code acquiring protection against GRL ignored pending GRL requests (which lead to GRL starvation). One of goals of new implementation is to disallow GRL starvation and so we have to solve problem with this deadlock in a different way. sql/events.cc: Changed methods of Events class to acquire protection against GRL while perfoming DDL statement and keep it until statement is written to the binary log. Unfortunately this step together with new GRL implementation exposed deadlock involving Events::LOCK_event_metadata and GRL. To solve it Events::LOCK_event_metadata mutex was replaced with a metadata lock on event. As a side-effect events DDL has to be prohibited under LOCK TABLES even in cases when mysql.events table was explicitly locked for write. sql/events.h: Replaced Events::LOCK_event_metadata mutex with a metadata lock on event. sql/ha_ndbcluster.cc: Updated code after replacing custom global read lock implementation with one based on MDL. Since MDL subsystem should now be able to detect deadlocks involving metadata locks and GRL there is no need for special handling of active GRL. sql/handler.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. sql/lock.cc: Replaced custom implementation of global read lock with one based on metadata locks. This step allows to expose wait for GRL to deadlock detector of MDL subsystem and thus succesfully resolve deadlocks similar to one behind bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". It also solves problem with GRL starvation described in bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'" since metadata locks used by GRL give preference to FTWRL statement instead of DML statements (if needed in future this can be changed to fair scheduling). Similar to old implementation of acquisition of GRL is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. To support this change: - Global_read_lock::lock/unlock_global_read_lock and make_global_read_lock_block_commit methods were changed accordingly. - Global_read_lock::wait_if_global_read_lock() and start_waiting_global_read_lock() methods were dropped. It is now responsibility of code acquiring metadata locks opening tables to acquire protection against GRL by explicitly taking global IX lock with statement duration. - Global variables, mutex and condition variable used by old implementation was removed. - lock_routine_name() was changed to use statement duration for its global IX lock. It was also renamed to lock_object_name() as it now also used to take metadata locks on events. - Global_read_lock::set_explicit_lock_duration() was added which allows not to release locks used for GRL when leaving prelocked mode. sql/lock.h: - Renamed lock_routine_name() to lock_object_name() and changed its signature to allow its usage for events. - Removed broadcast_refresh() function. It is no longer needed with new GRL implementation. sql/log_event.cc: Release metadata locks with statement duration at the end of processing legacy event for LOAD DATA. This ensures that replication thread processing such event properly releases its protection against global read lock. sql/mdl.cc: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Changed thread state name for GLOBAL namespace to "Waiting for global read lock". Optimized MDL_map::find_or_insert() method to avoid taking m_mutex mutex when looking up MDL_lock objects for GLOBAL or COMMIT namespaces. We keep pre-created MDL_lock objects for these namespaces around and simply return pointers to these global objects when needed. Changed MDL_lock/MDL_scoped_lock to properly handle notification of insert delayed handler threads when FTWRL takes global S lock. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mdl.h: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mysqld.cc: Removed global mutex and condition variables which were used by old implementation of GRL. Also we no longer need to initialize Events::LOCK_event_metadata mutex as it was replaced with metadata locks on events. sql/mysqld.h: Removed global variable, mutex and condition variables which were used by old implementation of GRL. sql/rpl_rli.cc: When slave thread closes tables which were open for handling of RBR events ensure that it releases global IX lock which was acquired as protection against GRL. sql/sp.cc: Adjusted code to the new signature of lock_object/routine_name(), to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sp_head.cc: Ensure that statements in stored procedures release statement metadata locks and thus release their protectiong against GRL in proper moment in time. Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_admin.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_base.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. Code doing this also responsible for checking that current connection has no active GRL by calling an Global_read_lock::can_acquire_protection() method. Changed code in open_table() and lock_table_names() accordingly. Note that as result of this change DDL and DML on temporary tables is always compatible with GRL (before it was incompatible in some cases and compatible in other cases). - To speed-up code acquiring protection against GRL introduced m_has_protection_against_grl member in Open_table_context class. It indicates that protection was already acquired sometime during open_tables() execution and new attempts can be skipped. - Thanks to new GRL implementation calls to broadcast_refresh() became unnecessary and were removed. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_base.h: Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. Also introduced Open_table_context::m_has_protection_against_grl member which allows to avoid acquiring protection against GRL while opening tables if such protection was already acquired. sql/sql_class.cc: Changed THD::leave_locked_tables_mode() after transactional sentinel for metadata locks was obsoleted by introduction of locks with explicit duration. sql/sql_class.h: - Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. - Changed Global_read_lock class according to changes in global read lock implementation: * wait_if_global_read_lock and start_waiting_global_read_lock are now gone. Instead code needing protection against GRL has to acquire global IX metadata lock with statement duration itself. To help it new can_acquire_protection() was introduced. Also as result of the above change m_protection_count member is gone too. * Added m_mdl_blocks_commits_lock member to store metadata lock blocking commits. * Adjusted code to the fact that concept of transactional sentinel was obsoleted by concept of lock duration. - Removed CF_PROTECT_AGAINST_GRL flag as it is no longer necessary. New GRL implementation acquires protection against global read lock automagically when statement acquires metadata locks on tables or other objects it is going to change. sql/sql_db.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_handler.cc: Removed call to broadcast_refresh() function. It is no longer needed with new GRL implementation. Adjusted code after introducing duration concept for metadata locks. Particularly to the fact transactional sentinel was replaced with explicit duration. sql/sql_handler.h: Renamed mysql_ha_move_tickets_after_trans_sentinel() to mysql_ha_set_explicit_lock_duration() after transactional sentinel was obsoleted by locks with explicit duration. sql/sql_insert.cc: Adjusted code handling delaying inserts after switching to new GRL implementation. Now connection thread initiating delayed insert has to acquire global IX lock in addition to metadata lock on table being inserted into. This IX lock protects against GRL and similarly to SW lock on table being inserted into has to be passed to handler thread in order to avoid deadlocks. sql/sql_lex.cc: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_lex.h: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_parse.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. This lock is automatically released at the end of statement execution. - Changed implementation of CREATE/DROP PROCEDURE/FUNCTION not to release metadata locks and thus protection against of GRL in the middle of statement execution. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_prepare.cc: Adjusted code to the to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_rename.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before renaming tables. This happens automatically in code which acquires metadata locks on tables being renamed. sql/sql_show.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_table.cc: - With new GRL implementation there is no need to explicitly acquire protection against GRL before dropping tables. This happens automatically in code which acquires metadata locks on tables being dropped. - Changed mysql_alter_table() not to release lock on new table name explicitly and to rely on automatic release of locks at the end of statement instead. This was necessary since now MDL_context::release_lock() is supported only for locks for explicit duration. sql/sql_trigger.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before changing table triggers. This happens automatically in code which acquires metadata locks on tables which triggers are to be changed. sql/sql_update.cc: Fix bug exposed by GRL testing. During prepare phase acquire only S metadata locks instead of SW locks to keep prepare of multi-UPDATE compatible with concurrent LOCK TABLES WRITE and global read lock. sql/sql_view.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before creating view. This happens automatically in code which acquires metadata lock on view to be created. sql/sql_yacc.yy: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/table.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/table.h: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/transaction.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. Also adjusted code to the fact that MDL savepoint is now represented by MDL_savepoint class.
2010-11-11 18:11:05 +01:00
close_thread_tables(thd);
thd->mdl_context.rollback_to_savepoint(mdl_savepoint);
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
DBUG_RETURN(MY_TEST(ret));
}
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
/**
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
Positions the internal pointer of `table` to the place where (db, name)
is stored.
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
In case search succeeded, the table cursor points at the found row.
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
@param[in] db database name
@param[in] name event name
@param[in,out] table mysql.event table
@retval FALSE an event with such db/name key exists
@retval TRUE no record found or an error occured.
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
*/
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
bool
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
Event_db_repository::find_named_event(LEX_STRING db, LEX_STRING name,
TABLE *table)
{
WL#3817: Simplify string / memory area types and make things more consistent (first part) The following type conversions was done: - Changed byte to uchar - Changed gptr to uchar* - Change my_string to char * - Change my_size_t to size_t - Change size_s to size_t Removed declaration of byte, gptr, my_string, my_size_t and size_s. Following function parameter changes was done: - All string functions in mysys/strings was changed to use size_t instead of uint for string lengths. - All read()/write() functions changed to use size_t (including vio). - All protocoll functions changed to use size_t instead of uint - Functions that used a pointer to a string length was changed to use size_t* - Changed malloc(), free() and related functions from using gptr to use void * as this requires fewer casts in the code and is more in line with how the standard functions work. - Added extra length argument to dirname_part() to return the length of the created string. - Changed (at least) following functions to take uchar* as argument: - db_dump() - my_net_write() - net_write_command() - net_store_data() - DBUG_DUMP() - decimal2bin() & bin2decimal() - Changed my_compress() and my_uncompress() to use size_t. Changed one argument to my_uncompress() from a pointer to a value as we only return one value (makes function easier to use). - Changed type of 'pack_data' argument to packfrm() to avoid casts. - Changed in readfrm() and writefrom(), ha_discover and handler::discover() the type for argument 'frmdata' to uchar** to avoid casts. - Changed most Field functions to use uchar* instead of char* (reduced a lot of casts). - Changed field->val_xxx(xxx, new_ptr) to take const pointers. Other changes: - Removed a lot of not needed casts - Added a few new cast required by other changes - Added some cast to my_multi_malloc() arguments for safety (as string lengths needs to be uint, not size_t). - Fixed all calls to hash-get-key functions to use size_t*. (Needed to be done explicitely as this conflict was often hided by casting the function to hash_get_key). - Changed some buffers to memory regions to uchar* to avoid casts. - Changed some string lengths from uint to size_t. - Changed field->ptr to be uchar* instead of char*. This allowed us to get rid of a lot of casts. - Some changes from true -> TRUE, false -> FALSE, unsigned char -> uchar - Include zlib.h in some files as we needed declaration of crc32() - Changed MY_FILE_ERROR to be (size_t) -1. - Changed many variables to hold the result of my_read() / my_write() to be size_t. This was needed to properly detect errors (which are returned as (size_t) -1). - Removed some very old VMS code - Changed packfrm()/unpackfrm() to not be depending on uint size (portability fix) - Removed windows specific code to restore cursor position as this causes slowdown on windows and we should not mix read() and pread() calls anyway as this is not thread safe. Updated function comment to reflect this. Changed function that depended on original behavior of my_pwrite() to itself restore the cursor position (one such case). - Added some missing checking of return value of malloc(). - Changed definition of MOD_PAD_CHAR_TO_FULL_LENGTH to avoid 'long' overflow. - Changed type of table_def::m_size from my_size_t to ulong to reflect that m_size is the number of elements in the array, not a string/memory length. - Moved THD::max_row_length() to table.cc (as it's not depending on THD). Inlined max_row_length_blob() into this function. - More function comments - Fixed some compiler warnings when compiled without partitions. - Removed setting of LEX_STRING() arguments in declaration (portability fix). - Some trivial indentation/variable name changes. - Some trivial code simplifications: - Replaced some calls to alloc_root + memcpy to use strmake_root()/strdup_root(). - Changed some calls from memdup() to strmake() (Safety fix) - Simpler loops in client-simple.c BitKeeper/etc/ignore: added libmysqld/ha_ndbcluster_cond.cc --- added debian/defs.mk debian/control client/completion_hash.cc: Remove not needed casts client/my_readline.h: Remove some old types client/mysql.cc: Simplify types client/mysql_upgrade.c: Remove some old types Update call to dirname_part client/mysqladmin.cc: Remove some old types client/mysqlbinlog.cc: Remove some old types Change some buffers to be uchar to avoid casts client/mysqlcheck.c: Remove some old types client/mysqldump.c: Remove some old types Remove some not needed casts Change some string lengths to size_t client/mysqlimport.c: Remove some old types client/mysqlshow.c: Remove some old types client/mysqlslap.c: Remove some old types Remove some not needed casts client/mysqltest.c: Removed some old types Removed some not needed casts Updated hash-get-key function arguments Updated parameters to dirname_part() client/readline.cc: Removed some old types Removed some not needed casts Changed some string lengths to use size_t client/sql_string.cc: Removed some old types dbug/dbug.c: Removed some old types Changed some string lengths to use size_t Changed some prototypes to avoid casts extra/comp_err.c: Removed some old types extra/innochecksum.c: Removed some old types extra/my_print_defaults.c: Removed some old types extra/mysql_waitpid.c: Removed some old types extra/perror.c: Removed some old types extra/replace.c: Removed some old types Updated parameters to dirname_part() extra/resolve_stack_dump.c: Removed some old types extra/resolveip.c: Removed some old types include/config-win.h: Removed some old types include/decimal.h: Changed binary strings to be uchar* instead of char* include/ft_global.h: Removed some old types include/hash.h: Removed some old types include/heap.h: Removed some old types Changed records_under_level to be 'ulong' instead of 'uint' to clarify usage of variable include/keycache.h: Removed some old types include/m_ctype.h: Removed some old types Changed some string lengths to use size_t Changed character length functions to return uint unsigned char -> uchar include/m_string.h: Removed some old types Changed some string lengths to use size_t include/my_alloc.h: Changed some string lengths to use size_t include/my_base.h: Removed some old types include/my_dbug.h: Removed some old types Changed some string lengths to use size_t Changed db_dump() to take uchar * as argument for memory to reduce number of casts in usage include/my_getopt.h: Removed some old types include/my_global.h: Removed old types: my_size_t -> size_t byte -> uchar gptr -> uchar * include/my_list.h: Removed some old types include/my_nosys.h: Removed some old types include/my_pthread.h: Removed some old types include/my_sys.h: Removed some old types Changed MY_FILE_ERROR to be in line with new definitions of my_write()/my_read() Changed some string lengths to use size_t my_malloc() / my_free() now uses void * Updated parameters to dirname_part() & my_uncompress() include/my_tree.h: Removed some old types include/my_trie.h: Removed some old types include/my_user.h: Changed some string lengths to use size_t include/my_vle.h: Removed some old types include/my_xml.h: Removed some old types Changed some string lengths to use size_t include/myisam.h: Removed some old types include/myisammrg.h: Removed some old types include/mysql.h: Removed some old types Changed byte streams to use uchar* instead of char* include/mysql_com.h: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts include/queues.h: Removed some old types include/sql_common.h: Removed some old types include/sslopt-longopts.h: Removed some old types include/violite.h: Removed some old types Changed some string lengths to use size_t libmysql/client_settings.h: Removed some old types libmysql/libmysql.c: Removed some old types libmysql/manager.c: Removed some old types libmysqld/emb_qcache.cc: Removed some old types libmysqld/emb_qcache.h: Removed some old types libmysqld/lib_sql.cc: Removed some old types Removed some not needed casts Changed some buffers to be uchar* to avoid casts true -> TRUE, false -> FALSE mysys/array.c: Removed some old types mysys/charset.c: Changed some string lengths to use size_t mysys/checksum.c: Include zlib to get definition for crc32 Removed some old types mysys/default.c: Removed some old types Changed some string lengths to use size_t mysys/default_modify.c: Changed some string lengths to use size_t Removed some not needed casts mysys/hash.c: Removed some old types Changed some string lengths to use size_t Note: Prototype of hash_key() has changed which may cause problems if client uses hash_init() with a cast for the hash-get-key function. hash_element now takes 'ulong' as the index type (cleanup) mysys/list.c: Removed some old types mysys/mf_cache.c: Changed some string lengths to use size_t mysys/mf_dirname.c: Removed some old types Changed some string lengths to use size_t Added argument to dirname_part() to avoid calculation of length for 'to' mysys/mf_fn_ext.c: Removed some old types Updated parameters to dirname_part() mysys/mf_format.c: Removed some old types Changed some string lengths to use size_t mysys/mf_getdate.c: Removed some old types mysys/mf_iocache.c: Removed some old types Changed some string lengths to use size_t Changed calculation of 'max_length' to be done the same way in all functions mysys/mf_iocache2.c: Removed some old types Changed some string lengths to use size_t Clean up comments Removed not needed indentation mysys/mf_keycache.c: Removed some old types mysys/mf_keycaches.c: Removed some old types mysys/mf_loadpath.c: Removed some old types mysys/mf_pack.c: Removed some old types Changed some string lengths to use size_t Removed some not needed casts Removed very old VMS code Updated parameters to dirname_part() Use result of dirnam_part() to remove call to strcat() mysys/mf_path.c: Removed some old types mysys/mf_radix.c: Removed some old types mysys/mf_same.c: Removed some old types mysys/mf_sort.c: Removed some old types mysys/mf_soundex.c: Removed some old types mysys/mf_strip.c: Removed some old types mysys/mf_tempdir.c: Removed some old types mysys/mf_unixpath.c: Removed some old types mysys/mf_wfile.c: Removed some old types mysys/mulalloc.c: Removed some old types mysys/my_alloc.c: Removed some old types Changed some string lengths to use size_t Use void* as type for allocated memory area Removed some not needed casts Changed argument 'Size' to 'length' according coding guidelines mysys/my_chsize.c: Changed some buffers to be uchar* to avoid casts mysys/my_compress.c: More comments Removed some old types Changed string lengths to use size_t Changed arguments to my_uncompress() to make them easier to understand Changed packfrm()/unpackfrm() to not be depending on uint size (portability fix) Changed type of 'pack_data' argument to packfrm() to avoid casts. mysys/my_conio.c: Changed some string lengths to use size_t mysys/my_create.c: Removed some old types mysys/my_div.c: Removed some old types mysys/my_error.c: Removed some old types mysys/my_fopen.c: Removed some old types mysys/my_fstream.c: Removed some old types Changed some string lengths to use size_t writen -> written mysys/my_getopt.c: Removed some old types mysys/my_getwd.c: Removed some old types More comments mysys/my_init.c: Removed some old types mysys/my_largepage.c: Removed some old types Changed some string lengths to use size_t mysys/my_lib.c: Removed some old types mysys/my_lockmem.c: Removed some old types mysys/my_malloc.c: Removed some old types Changed malloc(), free() and related functions to use void * Changed all functions to use size_t mysys/my_memmem.c: Indentation cleanup mysys/my_once.c: Removed some old types Changed malloc(), free() and related functions to use void * mysys/my_open.c: Removed some old types mysys/my_pread.c: Removed some old types Changed all functions to use size_t Added comment for how my_pread() / my_pwrite() are supposed to work. Removed windows specific code to restore cursor position as this causes slowdown on windows and we should not mix read() and pread() calls anyway as this is not thread safe. (If we ever would really need this, it should be enabled only with a flag argument) mysys/my_quick.c: Removed some old types Changed all functions to use size_t mysys/my_read.c: Removed some old types Changed all functions to use size_t mysys/my_realloc.c: Removed some old types Use void* as type for allocated memory area Changed all functions to use size_t mysys/my_static.c: Removed some old types mysys/my_static.h: Removed some old types mysys/my_vle.c: Removed some old types mysys/my_wincond.c: Removed some old types mysys/my_windac.c: Removed some old types mysys/my_write.c: Removed some old types Changed all functions to use size_t mysys/ptr_cmp.c: Removed some old types Changed all functions to use size_t mysys/queues.c: Removed some old types mysys/safemalloc.c: Removed some old types Changed malloc(), free() and related functions to use void * Changed all functions to use size_t mysys/string.c: Removed some old types Changed all functions to use size_t mysys/testhash.c: Removed some old types mysys/thr_alarm.c: Removed some old types mysys/thr_lock.c: Removed some old types mysys/tree.c: Removed some old types mysys/trie.c: Removed some old types mysys/typelib.c: Removed some old types plugin/daemon_example/daemon_example.cc: Removed some old types regex/reginit.c: Removed some old types server-tools/instance-manager/buffer.cc: Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/buffer.h: Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/commands.cc: Removed some old types Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/instance_map.cc: Removed some old types Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/instance_options.cc: Changed buffer to be of type uchar* Replaced alloc_root + strcpy() with strdup_root() server-tools/instance-manager/mysql_connection.cc: Changed buffer to be of type uchar* server-tools/instance-manager/options.cc: Removed some old types server-tools/instance-manager/parse.cc: Changed some string lengths to use size_t server-tools/instance-manager/parse.h: Removed some old types Changed some string lengths to use size_t server-tools/instance-manager/protocol.cc: Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t server-tools/instance-manager/protocol.h: Changed some string lengths to use size_t server-tools/instance-manager/user_map.cc: Removed some old types Changed some string lengths to use size_t sql/derror.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t sql/discover.cc: Changed in readfrm() and writefrom() the type for argument 'frmdata' to uchar** to avoid casts Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts sql/event_data_objects.cc: Removed some old types Added missing casts for alloc() and sprintf() sql/event_db_repository.cc: Changed some buffers to be uchar* to avoid casts Added missing casts for sprintf() sql/event_queue.cc: Removed some old types sql/field.cc: Removed some old types Changed memory buffers to be uchar* Changed some string lengths to use size_t Removed a lot of casts Safety fix in Field_blob::val_decimal() to not access zero pointer sql/field.h: Removed some old types Changed memory buffers to be uchar* (except of store() as this would have caused too many other changes). Changed some string lengths to use size_t Removed some not needed casts Changed val_xxx(xxx, new_ptr) to take const pointers sql/field_conv.cc: Removed some old types Added casts required because memory area pointers are now uchar* sql/filesort.cc: Initalize variable that was used unitialized in error conditions sql/gen_lex_hash.cc: Removed some old types Changed memory buffers to be uchar* Changed some string lengths to use size_t Removed a lot of casts Safety fix in Field_blob::val_decimal() to not access zero pointer sql/gstream.h: Added required cast sql/ha_ndbcluster.cc: Removed some old types Updated hash-get-key function arguments Changed some buffers to be uchar* to avoid casts Added required casts Removed some not needed casts sql/ha_ndbcluster.h: Removed some old types sql/ha_ndbcluster_binlog.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Replaced sql_alloc() + memcpy() + set end 0 with sql_strmake() Changed some string lengths to use size_t Added missing casts for alloc() and sprintf() sql/ha_ndbcluster_binlog.h: Removed some old types sql/ha_ndbcluster_cond.cc: Removed some old types Removed some not needed casts sql/ha_ndbcluster_cond.h: Removed some old types sql/ha_partition.cc: Removed some old types Changed prototype for change_partition() to avoid casts sql/ha_partition.h: Removed some old types sql/handler.cc: Removed some old types Changed some string lengths to use size_t sql/handler.h: Removed some old types Changed some string lengths to use size_t Changed type for 'frmblob' parameter for discover() and ha_discover() to get fewer casts sql/hash_filo.h: Removed some old types Changed all functions to use size_t sql/hostname.cc: Removed some old types sql/item.cc: Removed some old types Changed some string lengths to use size_t Use strmake() instead of memdup() to create a null terminated string. Updated calls to new Field() sql/item.h: Removed some old types Changed malloc(), free() and related functions to use void * Changed some buffers to be uchar* to avoid casts sql/item_cmpfunc.cc: Removed some old types Changed some buffers to be uchar* to avoid casts sql/item_cmpfunc.h: Removed some old types sql/item_create.cc: Removed some old types sql/item_func.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts Added test for failing alloc() in init_result_field() Remove old confusing comment Fixed compiler warning sql/item_func.h: Removed some old types sql/item_row.cc: Removed some old types sql/item_row.h: Removed some old types sql/item_strfunc.cc: Include zlib (needed becasue we call crc32) Removed some old types sql/item_strfunc.h: Removed some old types Changed some types to match new function prototypes sql/item_subselect.cc: Removed some old types sql/item_subselect.h: Removed some old types sql/item_sum.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/item_sum.h: Removed some old types sql/item_timefunc.cc: Removed some old types Changed some string lengths to use size_t sql/item_timefunc.h: Removed some old types sql/item_xmlfunc.cc: Changed some string lengths to use size_t sql/item_xmlfunc.h: Removed some old types sql/key.cc: Removed some old types Removed some not needed casts sql/lock.cc: Removed some old types Added some cast to my_multi_malloc() arguments for safety sql/log.cc: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts Changed usage of pwrite() to not assume it holds the cursor position for the file Made usage of my_read() safer sql/log_event.cc: Removed some old types Added checking of return value of malloc() in pack_info() Changed some buffers to be uchar* to avoid casts Removed some 'const' to avoid casts Added missing casts for alloc() and sprintf() Added required casts Removed some not needed casts Added some cast to my_multi_malloc() arguments for safety sql/log_event.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/log_event_old.cc: Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/log_event_old.h: Changed some buffers to be uchar* to avoid casts sql/mf_iocache.cc: Removed some old types sql/my_decimal.cc: Changed memory area to use uchar* sql/my_decimal.h: Changed memory area to use uchar* sql/mysql_priv.h: Removed some old types Changed malloc(), free() and related functions to use void * Changed some string lengths to use size_t Changed definition of MOD_PAD_CHAR_TO_FULL_LENGTH to avoid long overflow Changed some buffers to be uchar* to avoid casts sql/mysqld.cc: Removed some old types sql/net_serv.cc: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts Ensure that vio_read()/vio_write() return values are stored in a size_t variable Removed some not needed casts sql/opt_range.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/opt_range.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/opt_sum.cc: Removed some old types Removed some not needed casts sql/parse_file.cc: Removed some old types Changed some string lengths to use size_t Changed alloc_root + memcpy + set end 0 -> strmake_root() sql/parse_file.h: Removed some old types sql/partition_info.cc: Removed some old types Added missing casts for alloc() Changed some buffers to be uchar* to avoid casts sql/partition_info.h: Changed some buffers to be uchar* to avoid casts sql/protocol.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/protocol.h: Removed some old types Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t sql/records.cc: Removed some old types sql/repl_failsafe.cc: Removed some old types Changed some string lengths to use size_t Added required casts sql/rpl_filter.cc: Removed some old types Updated hash-get-key function arguments Changed some string lengths to use size_t sql/rpl_filter.h: Changed some string lengths to use size_t sql/rpl_injector.h: Removed some old types sql/rpl_record.cc: Removed some old types Removed some not needed casts Changed some buffers to be uchar* to avoid casts sql/rpl_record.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/rpl_record_old.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/rpl_record_old.h: Removed some old types Changed some buffers to be uchar* to avoid cast sql/rpl_rli.cc: Removed some old types sql/rpl_tblmap.cc: Removed some old types sql/rpl_tblmap.h: Removed some old types sql/rpl_utility.cc: Removed some old types sql/rpl_utility.h: Removed some old types Changed type of m_size from my_size_t to ulong to reflect that m_size is the number of elements in the array, not a string/memory length sql/set_var.cc: Removed some old types Updated parameters to dirname_part() sql/set_var.h: Removed some old types sql/slave.cc: Removed some old types Changed some string lengths to use size_t sql/slave.h: Removed some old types sql/sp.cc: Removed some old types Added missing casts for printf() sql/sp.h: Removed some old types Updated hash-get-key function arguments sql/sp_cache.cc: Removed some old types Added missing casts for printf() Updated hash-get-key function arguments sql/sp_head.cc: Removed some old types Added missing casts for alloc() and printf() Added required casts Updated hash-get-key function arguments sql/sp_head.h: Removed some old types sql/sp_pcontext.cc: Removed some old types sql/sp_pcontext.h: Removed some old types sql/sql_acl.cc: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts Removed some not needed casts Added required casts sql/sql_analyse.cc: Changed some buffers to be uchar* to avoid casts sql/sql_analyse.h: Changed some buffers to be uchar* to avoid casts sql/sql_array.h: Removed some old types sql/sql_base.cc: Removed some old types Updated hash-get-key function arguments sql/sql_binlog.cc: Removed some old types Added missing casts for printf() sql/sql_cache.cc: Removed some old types Updated hash-get-key function arguments Removed some not needed casts Changed some string lengths to use size_t sql/sql_cache.h: Removed some old types Removed reference to not existing function cache_key() Updated hash-get-key function arguments sql/sql_class.cc: Removed some old types Updated hash-get-key function arguments Added missing casts for alloc() Updated hash-get-key function arguments Moved THD::max_row_length() to table.cc (as it's not depending on THD) Removed some not needed casts sql/sql_class.h: Removed some old types Changed malloc(), free() and related functions to use void * Removed some not needed casts Changed some string lengths to use size_t Moved max_row_length and max_row_length_blob() to table.cc, as they are not depending on THD sql/sql_connect.cc: Removed some old types Added required casts sql/sql_db.cc: Removed some old types Removed some not needed casts Added some cast to my_multi_malloc() arguments for safety Added missing casts for alloc() sql/sql_delete.cc: Removed some old types sql/sql_handler.cc: Removed some old types Updated hash-get-key function arguments Added some cast to my_multi_malloc() arguments for safety sql/sql_help.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/sql_insert.cc: Removed some old types Added missing casts for alloc() and printf() sql/sql_lex.cc: Removed some old types sql/sql_lex.h: Removed some old types Removed some not needed casts sql/sql_list.h: Removed some old types Removed some not needed casts sql/sql_load.cc: Removed some old types Removed compiler warning sql/sql_manager.cc: Removed some old types sql/sql_map.cc: Removed some old types sql/sql_map.h: Removed some old types sql/sql_olap.cc: Removed some old types sql/sql_parse.cc: Removed some old types Trivial move of code lines to make things more readable Changed some string lengths to use size_t Added missing casts for alloc() sql/sql_partition.cc: Removed some old types Removed compiler warnings about not used functions Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/sql_partition.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/sql_plugin.cc: Removed some old types Added missing casts for alloc() Updated hash-get-key function arguments sql/sql_prepare.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Added missing casts for alloc() and printf() sql-common/client.c: Removed some old types Changed some memory areas to use uchar* sql-common/my_user.c: Changed some string lengths to use size_t sql-common/pack.c: Changed some buffers to be uchar* to avoid casts sql/sql_repl.cc: Added required casts Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t sql/sql_select.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some old types sql/sql_select.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/sql_servers.cc: Removed some old types Updated hash-get-key function arguments sql/sql_show.cc: Removed some old types Added missing casts for alloc() Removed some not needed casts sql/sql_string.cc: Removed some old types Added required casts sql/sql_table.cc: Removed some old types Removed compiler warning about not used variable Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/sql_test.cc: Removed some old types sql/sql_trigger.cc: Removed some old types Added missing casts for alloc() sql/sql_udf.cc: Removed some old types Updated hash-get-key function arguments sql/sql_union.cc: Removed some old types sql/sql_update.cc: Removed some old types Removed some not needed casts sql/sql_view.cc: Removed some old types sql/sql_yacc.yy: Removed some old types Changed some string lengths to use size_t Added missing casts for alloc() sql/stacktrace.c: Removed some old types sql/stacktrace.h: Removed some old types sql/structs.h: Removed some old types sql/table.cc: Removed some old types Updated hash-get-key function arguments Changed some buffers to be uchar* to avoid casts Removed setting of LEX_STRING() arguments in declaration Added required casts More function comments Moved max_row_length() here from sql_class.cc/sql_class.h sql/table.h: Removed some old types Changed some string lengths to use size_t sql/thr_malloc.cc: Use void* as type for allocated memory area Changed all functions to use size_t sql/tzfile.h: Changed some buffers to be uchar* to avoid casts sql/tztime.cc: Changed some buffers to be uchar* to avoid casts Updated hash-get-key function arguments Added missing casts for alloc() Removed some not needed casts sql/uniques.cc: Removed some old types Removed some not needed casts sql/unireg.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts Added missing casts for alloc() storage/archive/archive_reader.c: Removed some old types storage/archive/azio.c: Removed some old types Removed some not needed casts storage/archive/ha_archive.cc: Removed some old types Changed type for 'frmblob' in archive_discover() to match handler Updated hash-get-key function arguments Removed some not needed casts storage/archive/ha_archive.h: Removed some old types storage/blackhole/ha_blackhole.cc: Removed some old types storage/blackhole/ha_blackhole.h: Removed some old types storage/csv/ha_tina.cc: Removed some old types Updated hash-get-key function arguments Changed some buffers to be uchar* to avoid casts storage/csv/ha_tina.h: Removed some old types Removed some not needed casts storage/csv/transparent_file.cc: Removed some old types Changed type of 'bytes_read' to be able to detect read errors Fixed indentation storage/csv/transparent_file.h: Removed some old types storage/example/ha_example.cc: Removed some old types Updated hash-get-key function arguments storage/example/ha_example.h: Removed some old types storage/federated/ha_federated.cc: Removed some old types Updated hash-get-key function arguments Removed some not needed casts storage/federated/ha_federated.h: Removed some old types storage/heap/_check.c: Changed some buffers to be uchar* to avoid casts storage/heap/_rectest.c: Removed some old types storage/heap/ha_heap.cc: Removed some old types storage/heap/ha_heap.h: Removed some old types storage/heap/heapdef.h: Removed some old types storage/heap/hp_block.c: Removed some old types Changed some string lengths to use size_t storage/heap/hp_clear.c: Removed some old types storage/heap/hp_close.c: Removed some old types storage/heap/hp_create.c: Removed some old types storage/heap/hp_delete.c: Removed some old types storage/heap/hp_hash.c: Removed some old types storage/heap/hp_info.c: Removed some old types storage/heap/hp_open.c: Removed some old types storage/heap/hp_rfirst.c: Removed some old types storage/heap/hp_rkey.c: Removed some old types storage/heap/hp_rlast.c: Removed some old types storage/heap/hp_rnext.c: Removed some old types storage/heap/hp_rprev.c: Removed some old types storage/heap/hp_rrnd.c: Removed some old types storage/heap/hp_rsame.c: Removed some old types storage/heap/hp_scan.c: Removed some old types storage/heap/hp_test1.c: Removed some old types storage/heap/hp_test2.c: Removed some old types storage/heap/hp_update.c: Removed some old types storage/heap/hp_write.c: Removed some old types Changed some string lengths to use size_t storage/innobase/handler/ha_innodb.cc: Removed some old types Updated hash-get-key function arguments Added missing casts for alloc() and printf() Removed some not needed casts storage/innobase/handler/ha_innodb.h: Removed some old types storage/myisam/ft_boolean_search.c: Removed some old types storage/myisam/ft_nlq_search.c: Removed some old types storage/myisam/ft_parser.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/ft_static.c: Removed some old types storage/myisam/ft_stopwords.c: Removed some old types storage/myisam/ft_update.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/ftdefs.h: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/fulltext.h: Removed some old types storage/myisam/ha_myisam.cc: Removed some old types storage/myisam/ha_myisam.h: Removed some old types storage/myisam/mi_cache.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/mi_check.c: Removed some old types storage/myisam/mi_checksum.c: Removed some old types storage/myisam/mi_close.c: Removed some old types storage/myisam/mi_create.c: Removed some old types storage/myisam/mi_delete.c: Removed some old types storage/myisam/mi_delete_all.c: Removed some old types storage/myisam/mi_dynrec.c: Removed some old types storage/myisam/mi_extra.c: Removed some old types storage/myisam/mi_key.c: Removed some old types storage/myisam/mi_locking.c: Removed some old types storage/myisam/mi_log.c: Removed some old types storage/myisam/mi_open.c: Removed some old types Removed some not needed casts Check argument of my_write()/my_pwrite() in functions returning int Added casting of string lengths to size_t storage/myisam/mi_packrec.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/mi_page.c: Removed some old types storage/myisam/mi_preload.c: Removed some old types storage/myisam/mi_range.c: Removed some old types storage/myisam/mi_rfirst.c: Removed some old types storage/myisam/mi_rkey.c: Removed some old types storage/myisam/mi_rlast.c: Removed some old types storage/myisam/mi_rnext.c: Removed some old types storage/myisam/mi_rnext_same.c: Removed some old types storage/myisam/mi_rprev.c: Removed some old types storage/myisam/mi_rrnd.c: Removed some old types storage/myisam/mi_rsame.c: Removed some old types storage/myisam/mi_rsamepos.c: Removed some old types storage/myisam/mi_scan.c: Removed some old types storage/myisam/mi_search.c: Removed some old types storage/myisam/mi_static.c: Removed some old types storage/myisam/mi_statrec.c: Removed some old types storage/myisam/mi_test1.c: Removed some old types storage/myisam/mi_test2.c: Removed some old types storage/myisam/mi_test3.c: Removed some old types storage/myisam/mi_unique.c: Removed some old types storage/myisam/mi_update.c: Removed some old types storage/myisam/mi_write.c: Removed some old types storage/myisam/myisam_ftdump.c: Removed some old types storage/myisam/myisamchk.c: Removed some old types storage/myisam/myisamdef.h: Removed some old types storage/myisam/myisamlog.c: Removed some old types Indentation fix storage/myisam/myisampack.c: Removed some old types storage/myisam/rt_index.c: Removed some old types storage/myisam/rt_split.c: Removed some old types storage/myisam/sort.c: Removed some old types storage/myisam/sp_defs.h: Removed some old types storage/myisam/sp_key.c: Removed some old types storage/myisammrg/ha_myisammrg.cc: Removed some old types storage/myisammrg/ha_myisammrg.h: Removed some old types storage/myisammrg/myrg_close.c: Removed some old types storage/myisammrg/myrg_def.h: Removed some old types storage/myisammrg/myrg_delete.c: Removed some old types storage/myisammrg/myrg_open.c: Removed some old types Updated parameters to dirname_part() storage/myisammrg/myrg_queue.c: Removed some old types storage/myisammrg/myrg_rfirst.c: Removed some old types storage/myisammrg/myrg_rkey.c: Removed some old types storage/myisammrg/myrg_rlast.c: Removed some old types storage/myisammrg/myrg_rnext.c: Removed some old types storage/myisammrg/myrg_rnext_same.c: Removed some old types storage/myisammrg/myrg_rprev.c: Removed some old types storage/myisammrg/myrg_rrnd.c: Removed some old types storage/myisammrg/myrg_rsame.c: Removed some old types storage/myisammrg/myrg_update.c: Removed some old types storage/myisammrg/myrg_write.c: Removed some old types storage/ndb/include/util/ndb_opts.h: Removed some old types storage/ndb/src/cw/cpcd/main.cpp: Removed some old types storage/ndb/src/kernel/vm/Configuration.cpp: Removed some old types storage/ndb/src/mgmclient/main.cpp: Removed some old types storage/ndb/src/mgmsrv/InitConfigFileParser.cpp: Removed some old types Removed old disabled code storage/ndb/src/mgmsrv/main.cpp: Removed some old types storage/ndb/src/ndbapi/NdbBlob.cpp: Removed some old types storage/ndb/src/ndbapi/NdbOperationDefine.cpp: Removed not used variable storage/ndb/src/ndbapi/NdbOperationInt.cpp: Added required casts storage/ndb/src/ndbapi/NdbScanOperation.cpp: Added required casts storage/ndb/tools/delete_all.cpp: Removed some old types storage/ndb/tools/desc.cpp: Removed some old types storage/ndb/tools/drop_index.cpp: Removed some old types storage/ndb/tools/drop_tab.cpp: Removed some old types storage/ndb/tools/listTables.cpp: Removed some old types storage/ndb/tools/ndb_config.cpp: Removed some old types storage/ndb/tools/restore/consumer_restore.cpp: Changed some buffers to be uchar* to avoid casts with new defintion of packfrm() storage/ndb/tools/restore/restore_main.cpp: Removed some old types storage/ndb/tools/select_all.cpp: Removed some old types storage/ndb/tools/select_count.cpp: Removed some old types storage/ndb/tools/waiter.cpp: Removed some old types strings/bchange.c: Changed function to use uchar * and size_t strings/bcmp.c: Changed function to use uchar * and size_t strings/bmove512.c: Changed function to use uchar * and size_t strings/bmove_upp.c: Changed function to use uchar * and size_t strings/ctype-big5.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-bin.c: Changed functions to use size_t strings/ctype-cp932.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-czech.c: Fixed indentation Changed functions to use size_t strings/ctype-euc_kr.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-eucjpms.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-gb2312.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-gbk.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-latin1.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-mb.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-simple.c: Changed functions to use size_t Simpler loops for caseup/casedown unsigned int -> uint unsigned char -> uchar strings/ctype-sjis.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-tis620.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-uca.c: Changed functions to use size_t unsigned char -> uchar strings/ctype-ucs2.c: Moved inclusion of stdarg.h to other includes usigned char -> uchar Changed functions to use size_t Changed character length functions to return uint strings/ctype-ujis.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-utf8.c: Changed functions to use size_t unsigned char -> uchar Indentation fixes strings/ctype-win1250ch.c: Indentation fixes Changed functions to use size_t strings/ctype.c: Changed functions to use size_t strings/decimal.c: Changed type for memory argument to uchar * strings/do_ctype.c: Indentation fixes strings/my_strtoll10.c: unsigned char -> uchar strings/my_vsnprintf.c: Changed functions to use size_t strings/r_strinstr.c: Removed some old types Changed functions to use size_t strings/str_test.c: Removed some old types strings/strappend.c: Changed functions to use size_t strings/strcont.c: Removed some old types strings/strfill.c: Removed some old types strings/strinstr.c: Changed functions to use size_t strings/strlen.c: Changed functions to use size_t strings/strmake.c: Changed functions to use size_t strings/strnlen.c: Changed functions to use size_t strings/strnmov.c: Changed functions to use size_t strings/strto.c: unsigned char -> uchar strings/strtod.c: Changed functions to use size_t strings/strxnmov.c: Changed functions to use size_t strings/xml.c: Changed functions to use size_t Indentation fixes tests/mysql_client_test.c: Removed some old types tests/thread_test.c: Removed some old types vio/test-ssl.c: Removed some old types vio/test-sslclient.c: Removed some old types vio/test-sslserver.c: Removed some old types vio/vio.c: Removed some old types vio/vio_priv.h: Removed some old types Changed vio_read()/vio_write() to work with size_t vio/viosocket.c: Changed vio_read()/vio_write() to work with size_t Indentation fixes vio/viossl.c: Changed vio_read()/vio_write() to work with size_t Indentation fixes vio/viosslfactories.c: Removed some old types vio/viotest-ssl.c: Removed some old types win/README: More explanations
2007-05-10 11:59:39 +02:00
uchar key[MAX_KEY_LENGTH];
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
DBUG_ENTER("Event_db_repository::find_named_event");
WL#3817: Simplify string / memory area types and make things more consistent (first part) The following type conversions was done: - Changed byte to uchar - Changed gptr to uchar* - Change my_string to char * - Change my_size_t to size_t - Change size_s to size_t Removed declaration of byte, gptr, my_string, my_size_t and size_s. Following function parameter changes was done: - All string functions in mysys/strings was changed to use size_t instead of uint for string lengths. - All read()/write() functions changed to use size_t (including vio). - All protocoll functions changed to use size_t instead of uint - Functions that used a pointer to a string length was changed to use size_t* - Changed malloc(), free() and related functions from using gptr to use void * as this requires fewer casts in the code and is more in line with how the standard functions work. - Added extra length argument to dirname_part() to return the length of the created string. - Changed (at least) following functions to take uchar* as argument: - db_dump() - my_net_write() - net_write_command() - net_store_data() - DBUG_DUMP() - decimal2bin() & bin2decimal() - Changed my_compress() and my_uncompress() to use size_t. Changed one argument to my_uncompress() from a pointer to a value as we only return one value (makes function easier to use). - Changed type of 'pack_data' argument to packfrm() to avoid casts. - Changed in readfrm() and writefrom(), ha_discover and handler::discover() the type for argument 'frmdata' to uchar** to avoid casts. - Changed most Field functions to use uchar* instead of char* (reduced a lot of casts). - Changed field->val_xxx(xxx, new_ptr) to take const pointers. Other changes: - Removed a lot of not needed casts - Added a few new cast required by other changes - Added some cast to my_multi_malloc() arguments for safety (as string lengths needs to be uint, not size_t). - Fixed all calls to hash-get-key functions to use size_t*. (Needed to be done explicitely as this conflict was often hided by casting the function to hash_get_key). - Changed some buffers to memory regions to uchar* to avoid casts. - Changed some string lengths from uint to size_t. - Changed field->ptr to be uchar* instead of char*. This allowed us to get rid of a lot of casts. - Some changes from true -> TRUE, false -> FALSE, unsigned char -> uchar - Include zlib.h in some files as we needed declaration of crc32() - Changed MY_FILE_ERROR to be (size_t) -1. - Changed many variables to hold the result of my_read() / my_write() to be size_t. This was needed to properly detect errors (which are returned as (size_t) -1). - Removed some very old VMS code - Changed packfrm()/unpackfrm() to not be depending on uint size (portability fix) - Removed windows specific code to restore cursor position as this causes slowdown on windows and we should not mix read() and pread() calls anyway as this is not thread safe. Updated function comment to reflect this. Changed function that depended on original behavior of my_pwrite() to itself restore the cursor position (one such case). - Added some missing checking of return value of malloc(). - Changed definition of MOD_PAD_CHAR_TO_FULL_LENGTH to avoid 'long' overflow. - Changed type of table_def::m_size from my_size_t to ulong to reflect that m_size is the number of elements in the array, not a string/memory length. - Moved THD::max_row_length() to table.cc (as it's not depending on THD). Inlined max_row_length_blob() into this function. - More function comments - Fixed some compiler warnings when compiled without partitions. - Removed setting of LEX_STRING() arguments in declaration (portability fix). - Some trivial indentation/variable name changes. - Some trivial code simplifications: - Replaced some calls to alloc_root + memcpy to use strmake_root()/strdup_root(). - Changed some calls from memdup() to strmake() (Safety fix) - Simpler loops in client-simple.c BitKeeper/etc/ignore: added libmysqld/ha_ndbcluster_cond.cc --- added debian/defs.mk debian/control client/completion_hash.cc: Remove not needed casts client/my_readline.h: Remove some old types client/mysql.cc: Simplify types client/mysql_upgrade.c: Remove some old types Update call to dirname_part client/mysqladmin.cc: Remove some old types client/mysqlbinlog.cc: Remove some old types Change some buffers to be uchar to avoid casts client/mysqlcheck.c: Remove some old types client/mysqldump.c: Remove some old types Remove some not needed casts Change some string lengths to size_t client/mysqlimport.c: Remove some old types client/mysqlshow.c: Remove some old types client/mysqlslap.c: Remove some old types Remove some not needed casts client/mysqltest.c: Removed some old types Removed some not needed casts Updated hash-get-key function arguments Updated parameters to dirname_part() client/readline.cc: Removed some old types Removed some not needed casts Changed some string lengths to use size_t client/sql_string.cc: Removed some old types dbug/dbug.c: Removed some old types Changed some string lengths to use size_t Changed some prototypes to avoid casts extra/comp_err.c: Removed some old types extra/innochecksum.c: Removed some old types extra/my_print_defaults.c: Removed some old types extra/mysql_waitpid.c: Removed some old types extra/perror.c: Removed some old types extra/replace.c: Removed some old types Updated parameters to dirname_part() extra/resolve_stack_dump.c: Removed some old types extra/resolveip.c: Removed some old types include/config-win.h: Removed some old types include/decimal.h: Changed binary strings to be uchar* instead of char* include/ft_global.h: Removed some old types include/hash.h: Removed some old types include/heap.h: Removed some old types Changed records_under_level to be 'ulong' instead of 'uint' to clarify usage of variable include/keycache.h: Removed some old types include/m_ctype.h: Removed some old types Changed some string lengths to use size_t Changed character length functions to return uint unsigned char -> uchar include/m_string.h: Removed some old types Changed some string lengths to use size_t include/my_alloc.h: Changed some string lengths to use size_t include/my_base.h: Removed some old types include/my_dbug.h: Removed some old types Changed some string lengths to use size_t Changed db_dump() to take uchar * as argument for memory to reduce number of casts in usage include/my_getopt.h: Removed some old types include/my_global.h: Removed old types: my_size_t -> size_t byte -> uchar gptr -> uchar * include/my_list.h: Removed some old types include/my_nosys.h: Removed some old types include/my_pthread.h: Removed some old types include/my_sys.h: Removed some old types Changed MY_FILE_ERROR to be in line with new definitions of my_write()/my_read() Changed some string lengths to use size_t my_malloc() / my_free() now uses void * Updated parameters to dirname_part() & my_uncompress() include/my_tree.h: Removed some old types include/my_trie.h: Removed some old types include/my_user.h: Changed some string lengths to use size_t include/my_vle.h: Removed some old types include/my_xml.h: Removed some old types Changed some string lengths to use size_t include/myisam.h: Removed some old types include/myisammrg.h: Removed some old types include/mysql.h: Removed some old types Changed byte streams to use uchar* instead of char* include/mysql_com.h: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts include/queues.h: Removed some old types include/sql_common.h: Removed some old types include/sslopt-longopts.h: Removed some old types include/violite.h: Removed some old types Changed some string lengths to use size_t libmysql/client_settings.h: Removed some old types libmysql/libmysql.c: Removed some old types libmysql/manager.c: Removed some old types libmysqld/emb_qcache.cc: Removed some old types libmysqld/emb_qcache.h: Removed some old types libmysqld/lib_sql.cc: Removed some old types Removed some not needed casts Changed some buffers to be uchar* to avoid casts true -> TRUE, false -> FALSE mysys/array.c: Removed some old types mysys/charset.c: Changed some string lengths to use size_t mysys/checksum.c: Include zlib to get definition for crc32 Removed some old types mysys/default.c: Removed some old types Changed some string lengths to use size_t mysys/default_modify.c: Changed some string lengths to use size_t Removed some not needed casts mysys/hash.c: Removed some old types Changed some string lengths to use size_t Note: Prototype of hash_key() has changed which may cause problems if client uses hash_init() with a cast for the hash-get-key function. hash_element now takes 'ulong' as the index type (cleanup) mysys/list.c: Removed some old types mysys/mf_cache.c: Changed some string lengths to use size_t mysys/mf_dirname.c: Removed some old types Changed some string lengths to use size_t Added argument to dirname_part() to avoid calculation of length for 'to' mysys/mf_fn_ext.c: Removed some old types Updated parameters to dirname_part() mysys/mf_format.c: Removed some old types Changed some string lengths to use size_t mysys/mf_getdate.c: Removed some old types mysys/mf_iocache.c: Removed some old types Changed some string lengths to use size_t Changed calculation of 'max_length' to be done the same way in all functions mysys/mf_iocache2.c: Removed some old types Changed some string lengths to use size_t Clean up comments Removed not needed indentation mysys/mf_keycache.c: Removed some old types mysys/mf_keycaches.c: Removed some old types mysys/mf_loadpath.c: Removed some old types mysys/mf_pack.c: Removed some old types Changed some string lengths to use size_t Removed some not needed casts Removed very old VMS code Updated parameters to dirname_part() Use result of dirnam_part() to remove call to strcat() mysys/mf_path.c: Removed some old types mysys/mf_radix.c: Removed some old types mysys/mf_same.c: Removed some old types mysys/mf_sort.c: Removed some old types mysys/mf_soundex.c: Removed some old types mysys/mf_strip.c: Removed some old types mysys/mf_tempdir.c: Removed some old types mysys/mf_unixpath.c: Removed some old types mysys/mf_wfile.c: Removed some old types mysys/mulalloc.c: Removed some old types mysys/my_alloc.c: Removed some old types Changed some string lengths to use size_t Use void* as type for allocated memory area Removed some not needed casts Changed argument 'Size' to 'length' according coding guidelines mysys/my_chsize.c: Changed some buffers to be uchar* to avoid casts mysys/my_compress.c: More comments Removed some old types Changed string lengths to use size_t Changed arguments to my_uncompress() to make them easier to understand Changed packfrm()/unpackfrm() to not be depending on uint size (portability fix) Changed type of 'pack_data' argument to packfrm() to avoid casts. mysys/my_conio.c: Changed some string lengths to use size_t mysys/my_create.c: Removed some old types mysys/my_div.c: Removed some old types mysys/my_error.c: Removed some old types mysys/my_fopen.c: Removed some old types mysys/my_fstream.c: Removed some old types Changed some string lengths to use size_t writen -> written mysys/my_getopt.c: Removed some old types mysys/my_getwd.c: Removed some old types More comments mysys/my_init.c: Removed some old types mysys/my_largepage.c: Removed some old types Changed some string lengths to use size_t mysys/my_lib.c: Removed some old types mysys/my_lockmem.c: Removed some old types mysys/my_malloc.c: Removed some old types Changed malloc(), free() and related functions to use void * Changed all functions to use size_t mysys/my_memmem.c: Indentation cleanup mysys/my_once.c: Removed some old types Changed malloc(), free() and related functions to use void * mysys/my_open.c: Removed some old types mysys/my_pread.c: Removed some old types Changed all functions to use size_t Added comment for how my_pread() / my_pwrite() are supposed to work. Removed windows specific code to restore cursor position as this causes slowdown on windows and we should not mix read() and pread() calls anyway as this is not thread safe. (If we ever would really need this, it should be enabled only with a flag argument) mysys/my_quick.c: Removed some old types Changed all functions to use size_t mysys/my_read.c: Removed some old types Changed all functions to use size_t mysys/my_realloc.c: Removed some old types Use void* as type for allocated memory area Changed all functions to use size_t mysys/my_static.c: Removed some old types mysys/my_static.h: Removed some old types mysys/my_vle.c: Removed some old types mysys/my_wincond.c: Removed some old types mysys/my_windac.c: Removed some old types mysys/my_write.c: Removed some old types Changed all functions to use size_t mysys/ptr_cmp.c: Removed some old types Changed all functions to use size_t mysys/queues.c: Removed some old types mysys/safemalloc.c: Removed some old types Changed malloc(), free() and related functions to use void * Changed all functions to use size_t mysys/string.c: Removed some old types Changed all functions to use size_t mysys/testhash.c: Removed some old types mysys/thr_alarm.c: Removed some old types mysys/thr_lock.c: Removed some old types mysys/tree.c: Removed some old types mysys/trie.c: Removed some old types mysys/typelib.c: Removed some old types plugin/daemon_example/daemon_example.cc: Removed some old types regex/reginit.c: Removed some old types server-tools/instance-manager/buffer.cc: Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/buffer.h: Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/commands.cc: Removed some old types Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/instance_map.cc: Removed some old types Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/instance_options.cc: Changed buffer to be of type uchar* Replaced alloc_root + strcpy() with strdup_root() server-tools/instance-manager/mysql_connection.cc: Changed buffer to be of type uchar* server-tools/instance-manager/options.cc: Removed some old types server-tools/instance-manager/parse.cc: Changed some string lengths to use size_t server-tools/instance-manager/parse.h: Removed some old types Changed some string lengths to use size_t server-tools/instance-manager/protocol.cc: Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t server-tools/instance-manager/protocol.h: Changed some string lengths to use size_t server-tools/instance-manager/user_map.cc: Removed some old types Changed some string lengths to use size_t sql/derror.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t sql/discover.cc: Changed in readfrm() and writefrom() the type for argument 'frmdata' to uchar** to avoid casts Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts sql/event_data_objects.cc: Removed some old types Added missing casts for alloc() and sprintf() sql/event_db_repository.cc: Changed some buffers to be uchar* to avoid casts Added missing casts for sprintf() sql/event_queue.cc: Removed some old types sql/field.cc: Removed some old types Changed memory buffers to be uchar* Changed some string lengths to use size_t Removed a lot of casts Safety fix in Field_blob::val_decimal() to not access zero pointer sql/field.h: Removed some old types Changed memory buffers to be uchar* (except of store() as this would have caused too many other changes). Changed some string lengths to use size_t Removed some not needed casts Changed val_xxx(xxx, new_ptr) to take const pointers sql/field_conv.cc: Removed some old types Added casts required because memory area pointers are now uchar* sql/filesort.cc: Initalize variable that was used unitialized in error conditions sql/gen_lex_hash.cc: Removed some old types Changed memory buffers to be uchar* Changed some string lengths to use size_t Removed a lot of casts Safety fix in Field_blob::val_decimal() to not access zero pointer sql/gstream.h: Added required cast sql/ha_ndbcluster.cc: Removed some old types Updated hash-get-key function arguments Changed some buffers to be uchar* to avoid casts Added required casts Removed some not needed casts sql/ha_ndbcluster.h: Removed some old types sql/ha_ndbcluster_binlog.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Replaced sql_alloc() + memcpy() + set end 0 with sql_strmake() Changed some string lengths to use size_t Added missing casts for alloc() and sprintf() sql/ha_ndbcluster_binlog.h: Removed some old types sql/ha_ndbcluster_cond.cc: Removed some old types Removed some not needed casts sql/ha_ndbcluster_cond.h: Removed some old types sql/ha_partition.cc: Removed some old types Changed prototype for change_partition() to avoid casts sql/ha_partition.h: Removed some old types sql/handler.cc: Removed some old types Changed some string lengths to use size_t sql/handler.h: Removed some old types Changed some string lengths to use size_t Changed type for 'frmblob' parameter for discover() and ha_discover() to get fewer casts sql/hash_filo.h: Removed some old types Changed all functions to use size_t sql/hostname.cc: Removed some old types sql/item.cc: Removed some old types Changed some string lengths to use size_t Use strmake() instead of memdup() to create a null terminated string. Updated calls to new Field() sql/item.h: Removed some old types Changed malloc(), free() and related functions to use void * Changed some buffers to be uchar* to avoid casts sql/item_cmpfunc.cc: Removed some old types Changed some buffers to be uchar* to avoid casts sql/item_cmpfunc.h: Removed some old types sql/item_create.cc: Removed some old types sql/item_func.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts Added test for failing alloc() in init_result_field() Remove old confusing comment Fixed compiler warning sql/item_func.h: Removed some old types sql/item_row.cc: Removed some old types sql/item_row.h: Removed some old types sql/item_strfunc.cc: Include zlib (needed becasue we call crc32) Removed some old types sql/item_strfunc.h: Removed some old types Changed some types to match new function prototypes sql/item_subselect.cc: Removed some old types sql/item_subselect.h: Removed some old types sql/item_sum.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/item_sum.h: Removed some old types sql/item_timefunc.cc: Removed some old types Changed some string lengths to use size_t sql/item_timefunc.h: Removed some old types sql/item_xmlfunc.cc: Changed some string lengths to use size_t sql/item_xmlfunc.h: Removed some old types sql/key.cc: Removed some old types Removed some not needed casts sql/lock.cc: Removed some old types Added some cast to my_multi_malloc() arguments for safety sql/log.cc: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts Changed usage of pwrite() to not assume it holds the cursor position for the file Made usage of my_read() safer sql/log_event.cc: Removed some old types Added checking of return value of malloc() in pack_info() Changed some buffers to be uchar* to avoid casts Removed some 'const' to avoid casts Added missing casts for alloc() and sprintf() Added required casts Removed some not needed casts Added some cast to my_multi_malloc() arguments for safety sql/log_event.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/log_event_old.cc: Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/log_event_old.h: Changed some buffers to be uchar* to avoid casts sql/mf_iocache.cc: Removed some old types sql/my_decimal.cc: Changed memory area to use uchar* sql/my_decimal.h: Changed memory area to use uchar* sql/mysql_priv.h: Removed some old types Changed malloc(), free() and related functions to use void * Changed some string lengths to use size_t Changed definition of MOD_PAD_CHAR_TO_FULL_LENGTH to avoid long overflow Changed some buffers to be uchar* to avoid casts sql/mysqld.cc: Removed some old types sql/net_serv.cc: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts Ensure that vio_read()/vio_write() return values are stored in a size_t variable Removed some not needed casts sql/opt_range.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/opt_range.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/opt_sum.cc: Removed some old types Removed some not needed casts sql/parse_file.cc: Removed some old types Changed some string lengths to use size_t Changed alloc_root + memcpy + set end 0 -> strmake_root() sql/parse_file.h: Removed some old types sql/partition_info.cc: Removed some old types Added missing casts for alloc() Changed some buffers to be uchar* to avoid casts sql/partition_info.h: Changed some buffers to be uchar* to avoid casts sql/protocol.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/protocol.h: Removed some old types Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t sql/records.cc: Removed some old types sql/repl_failsafe.cc: Removed some old types Changed some string lengths to use size_t Added required casts sql/rpl_filter.cc: Removed some old types Updated hash-get-key function arguments Changed some string lengths to use size_t sql/rpl_filter.h: Changed some string lengths to use size_t sql/rpl_injector.h: Removed some old types sql/rpl_record.cc: Removed some old types Removed some not needed casts Changed some buffers to be uchar* to avoid casts sql/rpl_record.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/rpl_record_old.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/rpl_record_old.h: Removed some old types Changed some buffers to be uchar* to avoid cast sql/rpl_rli.cc: Removed some old types sql/rpl_tblmap.cc: Removed some old types sql/rpl_tblmap.h: Removed some old types sql/rpl_utility.cc: Removed some old types sql/rpl_utility.h: Removed some old types Changed type of m_size from my_size_t to ulong to reflect that m_size is the number of elements in the array, not a string/memory length sql/set_var.cc: Removed some old types Updated parameters to dirname_part() sql/set_var.h: Removed some old types sql/slave.cc: Removed some old types Changed some string lengths to use size_t sql/slave.h: Removed some old types sql/sp.cc: Removed some old types Added missing casts for printf() sql/sp.h: Removed some old types Updated hash-get-key function arguments sql/sp_cache.cc: Removed some old types Added missing casts for printf() Updated hash-get-key function arguments sql/sp_head.cc: Removed some old types Added missing casts for alloc() and printf() Added required casts Updated hash-get-key function arguments sql/sp_head.h: Removed some old types sql/sp_pcontext.cc: Removed some old types sql/sp_pcontext.h: Removed some old types sql/sql_acl.cc: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts Removed some not needed casts Added required casts sql/sql_analyse.cc: Changed some buffers to be uchar* to avoid casts sql/sql_analyse.h: Changed some buffers to be uchar* to avoid casts sql/sql_array.h: Removed some old types sql/sql_base.cc: Removed some old types Updated hash-get-key function arguments sql/sql_binlog.cc: Removed some old types Added missing casts for printf() sql/sql_cache.cc: Removed some old types Updated hash-get-key function arguments Removed some not needed casts Changed some string lengths to use size_t sql/sql_cache.h: Removed some old types Removed reference to not existing function cache_key() Updated hash-get-key function arguments sql/sql_class.cc: Removed some old types Updated hash-get-key function arguments Added missing casts for alloc() Updated hash-get-key function arguments Moved THD::max_row_length() to table.cc (as it's not depending on THD) Removed some not needed casts sql/sql_class.h: Removed some old types Changed malloc(), free() and related functions to use void * Removed some not needed casts Changed some string lengths to use size_t Moved max_row_length and max_row_length_blob() to table.cc, as they are not depending on THD sql/sql_connect.cc: Removed some old types Added required casts sql/sql_db.cc: Removed some old types Removed some not needed casts Added some cast to my_multi_malloc() arguments for safety Added missing casts for alloc() sql/sql_delete.cc: Removed some old types sql/sql_handler.cc: Removed some old types Updated hash-get-key function arguments Added some cast to my_multi_malloc() arguments for safety sql/sql_help.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/sql_insert.cc: Removed some old types Added missing casts for alloc() and printf() sql/sql_lex.cc: Removed some old types sql/sql_lex.h: Removed some old types Removed some not needed casts sql/sql_list.h: Removed some old types Removed some not needed casts sql/sql_load.cc: Removed some old types Removed compiler warning sql/sql_manager.cc: Removed some old types sql/sql_map.cc: Removed some old types sql/sql_map.h: Removed some old types sql/sql_olap.cc: Removed some old types sql/sql_parse.cc: Removed some old types Trivial move of code lines to make things more readable Changed some string lengths to use size_t Added missing casts for alloc() sql/sql_partition.cc: Removed some old types Removed compiler warnings about not used functions Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/sql_partition.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/sql_plugin.cc: Removed some old types Added missing casts for alloc() Updated hash-get-key function arguments sql/sql_prepare.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Added missing casts for alloc() and printf() sql-common/client.c: Removed some old types Changed some memory areas to use uchar* sql-common/my_user.c: Changed some string lengths to use size_t sql-common/pack.c: Changed some buffers to be uchar* to avoid casts sql/sql_repl.cc: Added required casts Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t sql/sql_select.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some old types sql/sql_select.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/sql_servers.cc: Removed some old types Updated hash-get-key function arguments sql/sql_show.cc: Removed some old types Added missing casts for alloc() Removed some not needed casts sql/sql_string.cc: Removed some old types Added required casts sql/sql_table.cc: Removed some old types Removed compiler warning about not used variable Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/sql_test.cc: Removed some old types sql/sql_trigger.cc: Removed some old types Added missing casts for alloc() sql/sql_udf.cc: Removed some old types Updated hash-get-key function arguments sql/sql_union.cc: Removed some old types sql/sql_update.cc: Removed some old types Removed some not needed casts sql/sql_view.cc: Removed some old types sql/sql_yacc.yy: Removed some old types Changed some string lengths to use size_t Added missing casts for alloc() sql/stacktrace.c: Removed some old types sql/stacktrace.h: Removed some old types sql/structs.h: Removed some old types sql/table.cc: Removed some old types Updated hash-get-key function arguments Changed some buffers to be uchar* to avoid casts Removed setting of LEX_STRING() arguments in declaration Added required casts More function comments Moved max_row_length() here from sql_class.cc/sql_class.h sql/table.h: Removed some old types Changed some string lengths to use size_t sql/thr_malloc.cc: Use void* as type for allocated memory area Changed all functions to use size_t sql/tzfile.h: Changed some buffers to be uchar* to avoid casts sql/tztime.cc: Changed some buffers to be uchar* to avoid casts Updated hash-get-key function arguments Added missing casts for alloc() Removed some not needed casts sql/uniques.cc: Removed some old types Removed some not needed casts sql/unireg.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts Added missing casts for alloc() storage/archive/archive_reader.c: Removed some old types storage/archive/azio.c: Removed some old types Removed some not needed casts storage/archive/ha_archive.cc: Removed some old types Changed type for 'frmblob' in archive_discover() to match handler Updated hash-get-key function arguments Removed some not needed casts storage/archive/ha_archive.h: Removed some old types storage/blackhole/ha_blackhole.cc: Removed some old types storage/blackhole/ha_blackhole.h: Removed some old types storage/csv/ha_tina.cc: Removed some old types Updated hash-get-key function arguments Changed some buffers to be uchar* to avoid casts storage/csv/ha_tina.h: Removed some old types Removed some not needed casts storage/csv/transparent_file.cc: Removed some old types Changed type of 'bytes_read' to be able to detect read errors Fixed indentation storage/csv/transparent_file.h: Removed some old types storage/example/ha_example.cc: Removed some old types Updated hash-get-key function arguments storage/example/ha_example.h: Removed some old types storage/federated/ha_federated.cc: Removed some old types Updated hash-get-key function arguments Removed some not needed casts storage/federated/ha_federated.h: Removed some old types storage/heap/_check.c: Changed some buffers to be uchar* to avoid casts storage/heap/_rectest.c: Removed some old types storage/heap/ha_heap.cc: Removed some old types storage/heap/ha_heap.h: Removed some old types storage/heap/heapdef.h: Removed some old types storage/heap/hp_block.c: Removed some old types Changed some string lengths to use size_t storage/heap/hp_clear.c: Removed some old types storage/heap/hp_close.c: Removed some old types storage/heap/hp_create.c: Removed some old types storage/heap/hp_delete.c: Removed some old types storage/heap/hp_hash.c: Removed some old types storage/heap/hp_info.c: Removed some old types storage/heap/hp_open.c: Removed some old types storage/heap/hp_rfirst.c: Removed some old types storage/heap/hp_rkey.c: Removed some old types storage/heap/hp_rlast.c: Removed some old types storage/heap/hp_rnext.c: Removed some old types storage/heap/hp_rprev.c: Removed some old types storage/heap/hp_rrnd.c: Removed some old types storage/heap/hp_rsame.c: Removed some old types storage/heap/hp_scan.c: Removed some old types storage/heap/hp_test1.c: Removed some old types storage/heap/hp_test2.c: Removed some old types storage/heap/hp_update.c: Removed some old types storage/heap/hp_write.c: Removed some old types Changed some string lengths to use size_t storage/innobase/handler/ha_innodb.cc: Removed some old types Updated hash-get-key function arguments Added missing casts for alloc() and printf() Removed some not needed casts storage/innobase/handler/ha_innodb.h: Removed some old types storage/myisam/ft_boolean_search.c: Removed some old types storage/myisam/ft_nlq_search.c: Removed some old types storage/myisam/ft_parser.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/ft_static.c: Removed some old types storage/myisam/ft_stopwords.c: Removed some old types storage/myisam/ft_update.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/ftdefs.h: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/fulltext.h: Removed some old types storage/myisam/ha_myisam.cc: Removed some old types storage/myisam/ha_myisam.h: Removed some old types storage/myisam/mi_cache.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/mi_check.c: Removed some old types storage/myisam/mi_checksum.c: Removed some old types storage/myisam/mi_close.c: Removed some old types storage/myisam/mi_create.c: Removed some old types storage/myisam/mi_delete.c: Removed some old types storage/myisam/mi_delete_all.c: Removed some old types storage/myisam/mi_dynrec.c: Removed some old types storage/myisam/mi_extra.c: Removed some old types storage/myisam/mi_key.c: Removed some old types storage/myisam/mi_locking.c: Removed some old types storage/myisam/mi_log.c: Removed some old types storage/myisam/mi_open.c: Removed some old types Removed some not needed casts Check argument of my_write()/my_pwrite() in functions returning int Added casting of string lengths to size_t storage/myisam/mi_packrec.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/mi_page.c: Removed some old types storage/myisam/mi_preload.c: Removed some old types storage/myisam/mi_range.c: Removed some old types storage/myisam/mi_rfirst.c: Removed some old types storage/myisam/mi_rkey.c: Removed some old types storage/myisam/mi_rlast.c: Removed some old types storage/myisam/mi_rnext.c: Removed some old types storage/myisam/mi_rnext_same.c: Removed some old types storage/myisam/mi_rprev.c: Removed some old types storage/myisam/mi_rrnd.c: Removed some old types storage/myisam/mi_rsame.c: Removed some old types storage/myisam/mi_rsamepos.c: Removed some old types storage/myisam/mi_scan.c: Removed some old types storage/myisam/mi_search.c: Removed some old types storage/myisam/mi_static.c: Removed some old types storage/myisam/mi_statrec.c: Removed some old types storage/myisam/mi_test1.c: Removed some old types storage/myisam/mi_test2.c: Removed some old types storage/myisam/mi_test3.c: Removed some old types storage/myisam/mi_unique.c: Removed some old types storage/myisam/mi_update.c: Removed some old types storage/myisam/mi_write.c: Removed some old types storage/myisam/myisam_ftdump.c: Removed some old types storage/myisam/myisamchk.c: Removed some old types storage/myisam/myisamdef.h: Removed some old types storage/myisam/myisamlog.c: Removed some old types Indentation fix storage/myisam/myisampack.c: Removed some old types storage/myisam/rt_index.c: Removed some old types storage/myisam/rt_split.c: Removed some old types storage/myisam/sort.c: Removed some old types storage/myisam/sp_defs.h: Removed some old types storage/myisam/sp_key.c: Removed some old types storage/myisammrg/ha_myisammrg.cc: Removed some old types storage/myisammrg/ha_myisammrg.h: Removed some old types storage/myisammrg/myrg_close.c: Removed some old types storage/myisammrg/myrg_def.h: Removed some old types storage/myisammrg/myrg_delete.c: Removed some old types storage/myisammrg/myrg_open.c: Removed some old types Updated parameters to dirname_part() storage/myisammrg/myrg_queue.c: Removed some old types storage/myisammrg/myrg_rfirst.c: Removed some old types storage/myisammrg/myrg_rkey.c: Removed some old types storage/myisammrg/myrg_rlast.c: Removed some old types storage/myisammrg/myrg_rnext.c: Removed some old types storage/myisammrg/myrg_rnext_same.c: Removed some old types storage/myisammrg/myrg_rprev.c: Removed some old types storage/myisammrg/myrg_rrnd.c: Removed some old types storage/myisammrg/myrg_rsame.c: Removed some old types storage/myisammrg/myrg_update.c: Removed some old types storage/myisammrg/myrg_write.c: Removed some old types storage/ndb/include/util/ndb_opts.h: Removed some old types storage/ndb/src/cw/cpcd/main.cpp: Removed some old types storage/ndb/src/kernel/vm/Configuration.cpp: Removed some old types storage/ndb/src/mgmclient/main.cpp: Removed some old types storage/ndb/src/mgmsrv/InitConfigFileParser.cpp: Removed some old types Removed old disabled code storage/ndb/src/mgmsrv/main.cpp: Removed some old types storage/ndb/src/ndbapi/NdbBlob.cpp: Removed some old types storage/ndb/src/ndbapi/NdbOperationDefine.cpp: Removed not used variable storage/ndb/src/ndbapi/NdbOperationInt.cpp: Added required casts storage/ndb/src/ndbapi/NdbScanOperation.cpp: Added required casts storage/ndb/tools/delete_all.cpp: Removed some old types storage/ndb/tools/desc.cpp: Removed some old types storage/ndb/tools/drop_index.cpp: Removed some old types storage/ndb/tools/drop_tab.cpp: Removed some old types storage/ndb/tools/listTables.cpp: Removed some old types storage/ndb/tools/ndb_config.cpp: Removed some old types storage/ndb/tools/restore/consumer_restore.cpp: Changed some buffers to be uchar* to avoid casts with new defintion of packfrm() storage/ndb/tools/restore/restore_main.cpp: Removed some old types storage/ndb/tools/select_all.cpp: Removed some old types storage/ndb/tools/select_count.cpp: Removed some old types storage/ndb/tools/waiter.cpp: Removed some old types strings/bchange.c: Changed function to use uchar * and size_t strings/bcmp.c: Changed function to use uchar * and size_t strings/bmove512.c: Changed function to use uchar * and size_t strings/bmove_upp.c: Changed function to use uchar * and size_t strings/ctype-big5.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-bin.c: Changed functions to use size_t strings/ctype-cp932.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-czech.c: Fixed indentation Changed functions to use size_t strings/ctype-euc_kr.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-eucjpms.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-gb2312.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-gbk.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-latin1.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-mb.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-simple.c: Changed functions to use size_t Simpler loops for caseup/casedown unsigned int -> uint unsigned char -> uchar strings/ctype-sjis.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-tis620.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-uca.c: Changed functions to use size_t unsigned char -> uchar strings/ctype-ucs2.c: Moved inclusion of stdarg.h to other includes usigned char -> uchar Changed functions to use size_t Changed character length functions to return uint strings/ctype-ujis.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-utf8.c: Changed functions to use size_t unsigned char -> uchar Indentation fixes strings/ctype-win1250ch.c: Indentation fixes Changed functions to use size_t strings/ctype.c: Changed functions to use size_t strings/decimal.c: Changed type for memory argument to uchar * strings/do_ctype.c: Indentation fixes strings/my_strtoll10.c: unsigned char -> uchar strings/my_vsnprintf.c: Changed functions to use size_t strings/r_strinstr.c: Removed some old types Changed functions to use size_t strings/str_test.c: Removed some old types strings/strappend.c: Changed functions to use size_t strings/strcont.c: Removed some old types strings/strfill.c: Removed some old types strings/strinstr.c: Changed functions to use size_t strings/strlen.c: Changed functions to use size_t strings/strmake.c: Changed functions to use size_t strings/strnlen.c: Changed functions to use size_t strings/strnmov.c: Changed functions to use size_t strings/strto.c: unsigned char -> uchar strings/strtod.c: Changed functions to use size_t strings/strxnmov.c: Changed functions to use size_t strings/xml.c: Changed functions to use size_t Indentation fixes tests/mysql_client_test.c: Removed some old types tests/thread_test.c: Removed some old types vio/test-ssl.c: Removed some old types vio/test-sslclient.c: Removed some old types vio/test-sslserver.c: Removed some old types vio/vio.c: Removed some old types vio/vio_priv.h: Removed some old types Changed vio_read()/vio_write() to work with size_t vio/viosocket.c: Changed vio_read()/vio_write() to work with size_t Indentation fixes vio/viossl.c: Changed vio_read()/vio_write() to work with size_t Indentation fixes vio/viosslfactories.c: Removed some old types vio/viotest-ssl.c: Removed some old types win/README: More explanations
2007-05-10 11:59:39 +02:00
DBUG_PRINT("enter", ("name: %.*s", (int) name.length, name.str));
/*
Create key to find row. We have to use field->store() to be able to
handle VARCHAR and CHAR fields.
Assumption here is that the two first fields in the table are
'db' and 'name' and the first key is the primary key over the
same fields.
*/
if (db.length > table->field[ET_FIELD_DB]->field_length ||
Added TRASH() to table->record[0] to find out if we access not initialzed data. - Changed Cached_item_field not copy data for fields with NULL value - In key_copy() and key_restore() don't copy data for fields with NULL value Fixed code to avoid valgrind warnings - Use c_ptr_safe instead of c_ptr() Removed "QQ" from comments (QQ was ment to be used for internal comments that should be removed before pushing) Fixed wrong alias used (from previous patch) sql/event_db_repository.cc: Update testing if event table is valid (to avoid valgrind errors) sql/ha_partition.cc: m_ordered_scan_ongoing was not initialized Reset null bits in record to avoid valgrind errors sql/handler.h: Added flag if storage engine will write row verbatim and the row contains varchar or null fields (in which case we must clear the row to avoid valgrind warnings) sql/item_buff.cc: Changed Cached_item_field not copy data for fields with NULL value (Optimization and avoids valgrind warnings) sql/item_func.cc: c_ptr() -> c_ptr_safe() sql/key.cc: In key_copy() and key_restore() don't copy data for fields with NULL value sql/opt_range.cc: c_ptr() -> c_ptr_safe() sql/sql_base.cc: Added TRASH() to table->record[0] to find out if we access not initialzed data. Initialize null_bytes to: - Get consistent tests - Ensure we don't get valgrind warnings for null fields (as we may only update a couple of bits in a byte) sql/sql_class.cc: Removed "QQ" from comments sql/sql_insert.cc: Initialize row to default values if we are using valgrind and row will be copied verbatim to disk in storage engine. sql/sql_load.cc: QQ -> TODO sql/sql_parse.cc: Removed old not used code marked QQ and withing "#ifdef REMOVED" sql/sql_select.cc: QQ -> TODO Initialize some variables that was used uninitialized Added DBUG_ASSERT() to find out if thd was not properly initialized for sub queries sql/sql_test.cc: Fixed format for printing to DBUG file Fixed wrong alias used (from previous patch) sql/sql_trigger.h: QQ -> TODO sql/table.cc: QQ -> TODO storage/maria/ha_maria.cc: Mark table with HA_RECORD_MUST_BE_CLEAN_ON_WRITE, if row is written verbatim to disk and contains varchar or null fields. storage/maria/ma_open.c: Added flags if table has varchar or null fields storage/maria/maria_def.h: Added flags if table has varchar or null fields storage/myisam/ha_myisam.cc: Mark table with HA_RECORD_MUST_BE_CLEAN_ON_WRITE, if row is written verbatim to disk and contains varchar or null fields. storage/myisam/mi_open.c: Fixed memory overrun bug when using fulltext keys storage/xtradb/row/row0sel.c: Removed initialization of null bits. (not needed anymore)
2010-11-27 16:29:52 +01:00
name.length > table->field[ET_FIELD_NAME]->field_length ||
table->s->keys == 0 ||
table->key_info[0].user_defined_key_parts != 2 ||
Added TRASH() to table->record[0] to find out if we access not initialzed data. - Changed Cached_item_field not copy data for fields with NULL value - In key_copy() and key_restore() don't copy data for fields with NULL value Fixed code to avoid valgrind warnings - Use c_ptr_safe instead of c_ptr() Removed "QQ" from comments (QQ was ment to be used for internal comments that should be removed before pushing) Fixed wrong alias used (from previous patch) sql/event_db_repository.cc: Update testing if event table is valid (to avoid valgrind errors) sql/ha_partition.cc: m_ordered_scan_ongoing was not initialized Reset null bits in record to avoid valgrind errors sql/handler.h: Added flag if storage engine will write row verbatim and the row contains varchar or null fields (in which case we must clear the row to avoid valgrind warnings) sql/item_buff.cc: Changed Cached_item_field not copy data for fields with NULL value (Optimization and avoids valgrind warnings) sql/item_func.cc: c_ptr() -> c_ptr_safe() sql/key.cc: In key_copy() and key_restore() don't copy data for fields with NULL value sql/opt_range.cc: c_ptr() -> c_ptr_safe() sql/sql_base.cc: Added TRASH() to table->record[0] to find out if we access not initialzed data. Initialize null_bytes to: - Get consistent tests - Ensure we don't get valgrind warnings for null fields (as we may only update a couple of bits in a byte) sql/sql_class.cc: Removed "QQ" from comments sql/sql_insert.cc: Initialize row to default values if we are using valgrind and row will be copied verbatim to disk in storage engine. sql/sql_load.cc: QQ -> TODO sql/sql_parse.cc: Removed old not used code marked QQ and withing "#ifdef REMOVED" sql/sql_select.cc: QQ -> TODO Initialize some variables that was used uninitialized Added DBUG_ASSERT() to find out if thd was not properly initialized for sub queries sql/sql_test.cc: Fixed format for printing to DBUG file Fixed wrong alias used (from previous patch) sql/sql_trigger.h: QQ -> TODO sql/table.cc: QQ -> TODO storage/maria/ha_maria.cc: Mark table with HA_RECORD_MUST_BE_CLEAN_ON_WRITE, if row is written verbatim to disk and contains varchar or null fields. storage/maria/ma_open.c: Added flags if table has varchar or null fields storage/maria/maria_def.h: Added flags if table has varchar or null fields storage/myisam/ha_myisam.cc: Mark table with HA_RECORD_MUST_BE_CLEAN_ON_WRITE, if row is written verbatim to disk and contains varchar or null fields. storage/myisam/mi_open.c: Fixed memory overrun bug when using fulltext keys storage/xtradb/row/row0sel.c: Removed initialization of null bits. (not needed anymore)
2010-11-27 16:29:52 +01:00
table->key_info[0].key_part[0].fieldnr != ET_FIELD_DB+1 ||
table->key_info[0].key_part[1].fieldnr != ET_FIELD_NAME+1)
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
DBUG_RETURN(TRUE);
table->field[ET_FIELD_DB]->store(db.str, db.length, &my_charset_bin);
table->field[ET_FIELD_NAME]->store(name.str, name.length, &my_charset_bin);
WL#3337 (Event scheduler new architecture) Cleaned up the code a bit. Fixed few leaks. This code still does not load events on server startup from disk. The problem is that there is a need for a THD instance, which does not exist during server boot. This will be solved soon. Still Event_timed is used both for the memory queue and for exectution. This will be changed according to WL#3337 probably in the next commit. sql/event_data_objects.cc: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_data_objects.h: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_db_repository.cc: Cosmetics. Add a new method load_named_event_job, to be made complete in the next commit. It will load from disk an instance of Event_job_data to be used during execution. sql/event_db_repository.h: find_event does not need MEM_ROOT anymore because the memory is allocated on Event's own root. sql/event_queue.cc: Remove dead code. Move dumping of the queue to separate method. Make critical sections in create_event & update_event as small as possible - load the new event outside of the section and free the object also outside of it. sql/event_queue.h: init -> init_queue -> easier for ctags deinit -> deinit_queue -> easier for ctags sql/event_scheduler.cc: empty this file sql/event_scheduler.h: empty this file sql/event_scheduler_ng.cc: add back DBUG_RETURN(0) in thread handlers. We don't stop running events when stopping the scheduler. Therefore remove this method now. If it is needed later it can be added back. sql/event_scheduler_ng.h: Remove stop_all_running_threads() init -> init_scheduler deinit -> deinit_scheduler easier for ctags sql/events.cc: Cosmetics sql/events.h: Cosmetics sql/set_var.cc: Remove references to dead code sql/sql_parse.cc: Reorganize a bit.
2006-07-05 17:12:50 +02:00
key_copy(key, table->record[0], table->key_info, table->key_info->key_length);
This is based on the userstatv2 patch from Percona and OurDelta. The original code comes, as far as I know, from Google (Mark Callaghan's team) with additional work from Percona, Ourdelta and Weldon Whipple. This code provides the same functionallity, but with a lot of changes to make it faster and better fit the MariaDB infrastucture. Added new status variables: - Com_show_client_statistics, Com_show_index_statistics, Com_show_table_statistics, Com_show_user_statistics - Access_denied_errors, Busy_time (clock time), Binlog_bytes_written, Cpu_time, Empty_queries, Rows_sent, Rows_read Added new variable / startup option 'userstat' to control if user statistics should be enabled or not Added my_getcputime(); Returns cpu time used by this thread. New FLUSH commands: - FLUSH SLOW QUERY LOG - FLUSH TABLE_STATISTICS - FLUSH INDEX_STATISTICS - FLUSH USER_STATISTICS - FLUSH CLIENT_STATISTICS New SHOW commands: - SHOW CLIENT_STATISTICS - SHOW USER_STATISTICS - SHOW TABLE_STATISTICS - SHOW INDEX_STATISTICS New Information schemas: - CLIENT_STATISTICS - USER_STATISTICS - INDEX_STATISTICS - TABLE_STATISTICS Added support for all new flush commands to mysqladmin Added handler::ha_... wrappers for all handler read calls to do statistics counting - Changed all code to use new ha_... calls - Count number of read rows, changed rows and rows read trough an index Added counting of number of bytes sent to binary log (status variable Binlog_bytes_written) Added counting of access denied errors (status variable Access_denied_erors) Bugs fixed: - Fixed bug in add_to_status() and add_diff_to_status() where longlong variables where threated as long - CLOCK_GETTIME was not propely working on Linuxm client/mysqladmin.cc: Added support for all new flush commmands and some common combinations: flush-slow-log flush-table-statistics flush-index-statistics flush-user-statistics flush-client-statistics flush-all-status flush-all-statistics configure.in: Added checking if clock_gettime needs the librt. (Fixes Bug #37639 clock_gettime is never used/enabled in Linux/Unix) include/my_sys.h: Added my_getcputime() include/mysql_com.h: Added LIST_PROCESS_HOST_LEN & new REFRESH target defines mysql-test/r/information_schema.result: New information schema tables added mysql-test/r/information_schema_all_engines.result: New information schema tables added mysql-test/r/information_schema_db.result: New information schema tables added mysql-test/r/log_slow.result: Added testing that flosh slow query logs is accepted mysql-test/r/status_user.result: Basic testing of user, client, table and index statistics mysql-test/t/log_slow.test: Added testing that flosh slow query logs is accepted mysql-test/t/status_user-master.opt: Ensure that we get a fresh restart before running status_user.test mysql-test/t/status_user.test: Basic testing of user, client, table and index statistics mysys/my_getsystime.c: Added my_getcputime() Returns cpu time used by this thread. sql/authors.h: Updated authors to have core and original MySQL developers first. sql/event_data_objects.cc: Updated call to mysql_reset_thd_for_next_command() sql/event_db_repository.cc: Changed to use new ha_... calls sql/filesort.cc: Changed to use new ha_... calls sql/ha_partition.cc: Changed to use new ha_... calls Fixed comment syntax sql/handler.cc: Changed to use new ha_... calls Reset table statistics Added code to update global table and index status Added counting of rows changed sql/handler.h: Added table and index statistics variables Added function reset_statistics() Added handler::ha_... wrappers for all handler read calls to do statistics counting Protected all normal read calls to ensure we use the new calls in the server. Made ha_partition a friend class so that partition code can call the old read functions sql/item_subselect.cc: Changed to use new ha_... calls sql/lex.h: Added keywords for new information schema tables and flush commands sql/log.cc: Added flush_slow_log() Added counting of number of bytes sent to binary log Removed not needed test of thd (It's used before, so it's safe to use) Added THD object to MYSQL_BIN_LOG::write_cache() to simplify statistics counting sql/log.h: Added new parameter to write_cache() Added flush_slow_log() functions. sql/log_event.cc: Updated call to mysql_reset_thd_for_next_command() Changed to use new ha_... calls sql/log_event_old.cc: Updated call to mysql_reset_thd_for_next_command() Changed to use new ha_... calls sql/mysql_priv.h: Updated call to mysql_reset_thd_for_next_command() Added new statistics functions and variables needed by these. sql/mysqld.cc: Added new statistics variables and structures to handle these Added new status variables: - Com_show_client_statistics, Com_show_index_statistics, Com_show_table_statistics, Com_show_user_statistics - Access_denied_errors, Busy_time (clock time), Binlog_bytes_written, Cpu_time, Empty_queries, Rows_set, Rows_read Added new option 'userstat' to control if user statistics should be enabled or not sql/opt_range.cc: Changed to use new ha_... calls sql/opt_range.h: Changed to use new ha_... calls sql/opt_sum.cc: Changed to use new ha_... calls sql/records.cc: Changed to use new ha_... calls sql/set_var.cc: Added variable 'userstat' sql/sp.cc: Changed to use new ha_... calls sql/sql_acl.cc: Changed to use new ha_... calls Added counting of access_denied_errors sql/sql_base.cc: Added call to statistics functions sql/sql_class.cc: Added usage of org_status_var, to store status variables at start of command Added functions THD::update_stats(), THD::update_all_stats() Fixed bug in add_to_status() and add_diff_to_status() where longlong variables where threated as long sql/sql_class.h: Added new status variables to status_var Moved variables that was not ulong in status_var last. Added variables to THD for storing temporary values during statistics counting sql/sql_connect.cc: Variables and functions to calculate user and client statistics Added counting of access_denied_errors and lost_connections sql/sql_cursor.cc: Changed to use new ha_... calls sql/sql_handler.cc: Changed to use new ha_... calls sql/sql_help.cc: Changed to use new ha_... calls sql/sql_insert.cc: Changed to use new ha_... calls sql/sql_lex.h: Added SQLCOM_SHOW_USER_STATS, SQLCOM_SHOW_TABLE_STATS, SQLCOM_SHOW_INDEX_STATS, SQLCOM_SHOW_CLIENT_STATS sql/sql_parse.cc: Added handling of: - SHOW CLIENT_STATISTICS - SHOW USER_STATISTICS - SHOW TABLE_STATISTICS - SHOW INDEX_STATISTICS Added handling of new FLUSH commands: - FLUSH SLOW QUERY LOGS - FLUSH TABLE_STATISTICS - FLUSH INDEX_STATISTICS - FLUSH USER_STATISTICS - FLUSH CLIENT_STATISTICS Added THD parameter to mysql_reset_thd_for_next_command() Added initialization and calls to user statistics functions Added increment of statistics variables empty_queries, rows_sent and access_denied_errors. Added counting of cpu time per query sql/sql_plugin.cc: Changed to use new ha_... calls sql/sql_prepare.cc: Updated call to mysql_reset_thd_for_next_command() sql/sql_select.cc: Changed to use new ha_... calls Indentation changes sql/sql_servers.cc: Changed to use new ha_... calls sql/sql_show.cc: Added counting of access denied errors Added function for new information schema tables: - CLIENT_STATISTICS - USER_STATISTICS - INDEX_STATISTICS - TABLE_STATISTICS Changed to use new ha_... calls sql/sql_table.cc: Changed to use new ha_... calls sql/sql_udf.cc: Changed to use new ha_... calls sql/sql_update.cc: Changed to use new ha_... calls sql/sql_yacc.yy: Add new show and flush commands sql/structs.h: Add name_length to KEY to avoid some strlen Added cache_name to KEY for fast storage of keyvalue in cache Added structs USER_STATS, TABLE_STATS, INDEX_STATS Added function prototypes for statistics functions sql/table.cc: Store db+table+index name into keyinfo->cache_name sql/table.h: Added new information schema tables sql/tztime.cc: Changed to use new ha_... calls
2009-10-19 19:14:48 +02:00
if (table->file->ha_index_read_idx_map(table->record[0], 0, key,
HA_WHOLE_KEY,
HA_READ_KEY_EXACT))
{
DBUG_PRINT("info", ("Row not found"));
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
DBUG_RETURN(TRUE);
}
DBUG_PRINT("info", ("Row found!"));
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
DBUG_RETURN(FALSE);
}
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
/*
Drops all events in the selected database, from mysql.event.
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
SYNOPSIS
Event_db_repository::drop_schema_events()
thd Thread
schema The database to clean from events
*/
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
void
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
Event_db_repository::drop_schema_events(THD *thd, LEX_STRING schema)
{
int ret= 0;
WL#3337 (Events new architecture) Small updates before patch submit. client/mysqltest.c: allow --valgrind option to mysqltest so one can be able to detect whether the test is running under valgrind by having $VALGRIND_TEST, similar to BIG_TEST, in the test file. mysql-test/mysql-test-run.pl: If the test suite is running under valgrind start mysqltest with --valgrind to inform that we run valgrind. mysqltest will provide $VALGRIND_TEST for the test cases. mysql-test/r/events_bugs.result: update result mysql-test/r/events_scheduling.result: update result mysql-test/t/events.test: Increase times or the test will fail under valgrind mysql-test/t/events_bugs.test: Increase times or the test will fail under valgrind mysql-test/t/events_scheduling.test: Remove faulty test Disable the test case for valgrind sql/event_data_objects.cc: count the number of executions sql/event_data_objects.h: flags is not used at all add execution_count to count the number of executions sql/event_db_repository.cc: Initialize wherever needed. Add a comment regarding valgrind warning. sql/event_queue.cc: more debug info in the trace log sql/event_scheduler.cc: Use macro COND_STATE_WAIT() in all cases we need waiting on condition. Hence, we can trace locking, attemption to lock and more with SHOW SCHEDULER STATUS sql/event_scheduler.h: Change the declaration of cond_wait to accept THD sql/events.cc: fix memory leak. Destroy event_queue mysql-test/include/not_valgrind.inc: New BitKeeper file ``mysql-test/include/not_valgrind.inc'' mysql-test/r/not_valgrind.require: New BitKeeper file ``mysql-test/r/not_valgrind.require''
2006-07-17 16:52:45 +02:00
TABLE *table= NULL;
READ_RECORD read_record_info;
A pre-requisite patch for the fix for Bug#52044. This patch also fixes Bug#55452 "SET PASSWORD is replicated twice in RBR mode". The goal of this patch is to remove the release of metadata locks from close_thread_tables(). This is necessary to not mistakenly release the locks in the course of a multi-step operation that involves multiple close_thread_tables() or close_tables_for_reopen(). On the same token, move statement commit outside close_thread_tables(). Other cleanups: Cleanup COM_FIELD_LIST. Don't call close_thread_tables() in COM_SHUTDOWN -- there are no open tables there that can be closed (we leave the locked tables mode in THD destructor, and this close_thread_tables() won't leave it anyway). Make open_and_lock_tables() and open_and_lock_tables_derived() call close_thread_tables() upon failure. Remove the calls to close_thread_tables() that are now unnecessary. Simplify the back off condition in Open_table_context. Streamline metadata lock handling in LOCK TABLES implementation. Add asserts to ensure correct life cycle of statement transaction in a session. Remove a piece of dead code that has also become redundant after the fix for Bug 37521. mysql-test/r/variables.result: Update results: set @@autocommit and statement transaction/ prelocked mode. mysql-test/r/view.result: A harmless change in CHECK TABLE <view> status for a broken view. If previously a failure to prelock all functions used in a view would leave the connection in LTM_PRELOCKED mode, now we call close_thread_tables() from open_and_lock_tables() and leave prelocked mode, thus some check in mysql_admin_table() that works only in prelocked/locked tables mode is no longer activated. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Fixed Bug#55452 "SET PASSWORD is replicated twice in RBR mode": extra binlog events are gone from the binary log. mysql-test/t/variables.test: Add a test case: set autocommit and statement transaction/prelocked mode. sql/event_data_objects.cc: Simplify code in Event_job_data::execute(). Move sp_head memory management to lex_end(). sql/event_db_repository.cc: Move the release of metadata locks outside close_thread_tables(). Make sure we call close_thread_tables() when open_and_lock_tables() fails and remove extra code from the events data dictionary. Use close_mysql_tables(), a new internal function to properly close mysql.* tables in the data dictionary. Contract Event_db_repository::drop_events_by_field, drop_schema_events into one function. When dropping all events in a schema, make sure we don't mistakenly release all locks acquired by DROP DATABASE. These include locks on the database name and the global intention exclusive metadata lock. sql/event_db_repository.h: Function open_event_table() does not require an instance of Event_db_repository. sql/events.cc: Use close_mysql_tables() instead of close_thread_tables() to bootstrap events, since the latter no longer releases metadata locks. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 no longer releases acquired metadata locks. Do it in the caller. sql/ha_ndbcluster_binlog.cc: Deploy the new protocol for closing thread tables in run_query() and ndb_binlog_index code. sql/handler.cc: Assert that we never call ha_commit_trans/ ha_rollback_trans in sub-statement, which is now the case. sql/handler.h: Add an accessor to check whether THD_TRANS object is empty (has no transaction started). sql/log.cc: Update a comment. sql/log_event.cc: Since now we commit/rollback statement transaction in mysql_execute_command(), we need a mechanism to communicate from Query_log_event::do_apply_event() to mysql_execute_command() that the statement transaction should be rolled back, not committed. Ideally it would be a virtual method of THD. I hesitate to make THD a virtual base class in this already large patch. Use a thd->variables.option_bits for now. Remove a call to close_thread_tables() from the slave IO thread. It doesn't open any tables, and the protocol for closing thread tables is more complicated now. Make sure we properly close thread tables, however, in Load_data_log_event, which doesn't follow the standard server execution procedure with mysql_execute_command(). @todo: this piece should use Server_runnable framework instead. Remove an unnecessary call to mysql_unlock_tables(). sql/rpl_rli.cc: Update Relay_log_info::slave_close_thread_tables() to follow the new close protocol. sql/set_var.cc: Remove an unused header. sql/slave.cc: Remove an unnecessary call to close_thread_tables(). sql/sp.cc: Remove unnecessary calls to close_thread_tables() from SP DDL implementation. The tables will be closed by the caller, in mysql_execute_command(). When dropping all routines in a database, make sure to not mistakenly drop all metadata locks acquired so far, they include the scoped lock on the schema. sql/sp_head.cc: Correct the protocol that closes thread tables in an SP instruction. Clear lex->sphead before cleaning up lex with lex_end to make sure that we don't delete the sphead twice. It's considered to be "cleaner" and more in line with future changes than calling delete lex->sphead in other places that cleanup the lex. sql/sp_head.h: When destroying m_lex_keeper of an instruction, don't delete the sphead that all lex objects share. @todo: don't store a reference to routine's sp_head instance in instruction's lex. sql/sql_acl.cc: Don't call close_thread_tables() where the caller will do that for us. Fix Bug#55452 "SET PASSWORD is replicated twice in RBR mode" by disabling RBR replication in change_password() function. Use close_mysql_tables() in bootstrap and ACL reload code to make sure we release all metadata locks. sql/sql_base.cc: This is the main part of the patch: - remove manipulation with thd->transaction and thd->mdl_context from close_thread_tables(). Now this function is only responsible for closing tables, nothing else. This is necessary to be able to easily use close_thread_tables() in procedures, that involve multiple open/close tables, which all need to be protected continuously by metadata locks. Add asserts ensuring that TABLE object is only used when is protected by a metadata lock. Simplify the back off condition of Open_table_context, we no longer need to look at the autocommit mode. Make open_and_lock_tables() and open_normal_and_derived_tables() close thread tables and release metadata locks acquired so-far upon failure. This simplifies their usage. Implement close_mysql_tables(). sql/sql_base.h: Add declaration for close_mysql_tables(). sql/sql_class.cc: Remove a piece of dead code that has also become redundant after the fix for Bug 37521. The code became dead when my_eof() was made a non-protocol method, but a method that merely modifies the diagnostics area. The code became redundant with the fix for Bug#37521, when we started to cal close_thread_tables() before Protocol::end_statement(). sql/sql_do.cc: Do nothing in DO if inside a substatement (the assert moved out of trans_rollback_stmt). sql/sql_handler.cc: Add comments. sql/sql_insert.cc: Remove dead code. Release metadata locks explicitly at the end of the delayed insert thread. sql/sql_lex.cc: Add destruction of lex->sphead to lex_end(), lex "reset" method called at the end of each statement. sql/sql_parse.cc: Move close_thread_tables() and other related cleanups to mysql_execute_command() from dispatch_command(). This has become possible after the fix for Bug#37521. Mark federated SERVER statements as DDL. Next step: make sure that we don't store eof packet in the query cache, and move the query cache code outside mysql_parse. Brush up the code of COM_FIELD_LIST. Remove unnecessary calls to close_thread_tables(). When killing a query, don't report "OK" if it was a suicide. sql/sql_parse.h: Remove declaration of a function that is now static. sql/sql_partition.cc: Remove an unnecessary call to close_thread_tables(). sql/sql_plugin.cc: open_and_lock_tables() will clean up after itself after a failure. Move close_thread_tables() above end: label, and replace with close_mysql_tables(), which will also release the metadata lock on mysql.plugin. sql/sql_prepare.cc: Now that we no longer release locks in close_thread_tables() statement prepare code has become more straightforward. Remove the now redundant check for thd->killed() (used only by the backup project) from Execute_server_runnable. Reorder code to take into account that now mysql_execute_command() performs lex->unit.cleanup() and close_thread_tables(). sql/sql_priv.h: Add a new option to server options to interact between the slave SQL thread and execution framework (hack). @todo: use a virtual method of class THD instead. sql/sql_servers.cc: Due to Bug 25705 replication of DROP/CREATE/ALTER SERVER is broken. Make sure at least we do not attempt to replicate these statements using RBR, as this violates the assert in close_mysql_tables(). sql/sql_table.cc: Do not release metadata locks in mysql_rm_table_part2, this is done by the caller. Do not call close_thread_tables() in mysql_create_table(), this is done by the caller. Fix a bug in DROP TABLE under LOCK TABLES when, upon error in wait_while_table_is_used() we would mistakenly release the metadata lock on a non-dropped table. Explicitly release metadata locks when doing an implicit commit. sql/sql_trigger.cc: Now that we delete lex->sphead in lex_end(), zero the trigger's sphead in lex after loading the trigger, to avoid double deletion. sql/sql_udf.cc: Use close_mysql_tables() instead of close_thread_tables(). sql/sys_vars.cc: Remove code added in scope of WL#4284 which would break when we perform set @@session.autocommit along with setting other variables and using tables or functions. A test case added to variables.test. sql/transaction.cc: Add asserts. sql/tztime.cc: Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 12:25:53 +02:00
enum enum_events_table_field field= ET_FIELD_DB;
Patch that refactors global read lock implementation and fixes bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK" and bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'". The first bug manifested itself as a deadlock which occurred when a connection, which had some table open through HANDLER statement, tried to update some data through DML statement while another connection tried to execute FLUSH TABLES WITH READ LOCK concurrently. What happened was that FTWRL in the second connection managed to perform first step of GRL acquisition and thus blocked all upcoming DML. After that it started to wait for table open through HANDLER statement to be flushed. When the first connection tried to execute DML it has started to wait for GRL/the second connection creating deadlock. The second bug manifested itself as starvation of FLUSH TABLES WITH READ LOCK statements in cases when there was a constant stream of concurrent DML statements (in two or more connections). This has happened because requests for protection against GRL which were acquired by DML statements were ignoring presence of pending GRL and thus the latter was starved. This patch solves both these problems by re-implementing GRL using metadata locks. Similar to the old implementation acquisition of GRL in new implementation is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. The first problem is solved because waits for GRL become visible to deadlock detector in metadata locking subsystem and thus deadlocks like one in the first bug become impossible. The second problem is solved because global S locks which are used for GRL implementation are given preference over IX locks which are acquired by concurrent DML (and we can switch to fair scheduling in future if needed). Important change: FTWRL/GRL no longer blocks DML and DDL on temporary tables. Before this patch behavior was not consistent in this respect: in some cases DML/DDL statements on temporary tables were blocked while in others they were not. Since the main use cases for FTWRL are various forms of backups and temporary tables are not preserved during backups we have opted for consistently allowing DML/DDL on temporary tables during FTWRL/GRL. Important change: This patch changes thread state names which are used when DML/DDL of FTWRL is waiting for global read lock. It is now either "Waiting for global read lock" or "Waiting for commit lock" depending on the stage on which FTWRL is. Incompatible change: To solve deadlock in events code which was exposed by this patch we have to replace LOCK_event_metadata mutex with metadata locks on events. As result we have to prohibit DDL on events under LOCK TABLES. This patch also adds extensive test coverage for interaction of DML/DDL and FTWRL. Performance of new and old global read lock implementations in sysbench tests were compared. There were no significant difference between new and old implementations. mysql-test/include/check_ftwrl_compatible.inc: Added helper script which allows to check that a statement is compatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/check_ftwrl_incompatible.inc: Added helper script which allows to check that a statement is incompatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/handler.inc: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/include/wait_show_condition.inc: Fixed small error in the timeout message. The correct name of variable used as parameter for this script is "$condition" and not "$wait_condition". mysql-test/r/delayed.result: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/r/events_2.result: Updated test results after prohibiting event DDL operations under LOCK TABLES. mysql-test/r/flush.result: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/r/flush_read_lock.result: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/r/flush_read_lock_kill.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/r/handler_innodb.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/handler_myisam.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/mdl_sync.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. mysql-test/suite/perfschema/r/dml_setup_instruments.result: Updated test results after removing global COND_global_read_lock condition variable. mysql-test/suite/perfschema/r/func_file_io.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/func_mutex.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/global_read_lock.result: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/r/server_init.result: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/perfschema/t/func_file_io.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/func_mutex.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/global_read_lock.test: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/t/server_init.test: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/rpl/r/rpl_tmp_table_and_DDL.result: Updated test results after prohibiting event DDL under LOCK TABLES. mysql-test/t/delayed.test: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/t/events_2.test: Updated test case after prohibiting event DDL operations under LOCK TABLES. mysql-test/t/flush.test: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/t/flush_block_commit.test: Adjusted test case after changing thread state name which is used when COMMIT waits for FLUSH TABLES WITH READ LOCK from "Waiting for release of readlock" to "Waiting for commit lock". mysql-test/t/flush_block_commit_notembedded.test: Adjusted test case after changing thread state name which is used when DML waits for FLUSH TABLES WITH READ LOCK. Now we use "Waiting for global read lock" in this case. mysql-test/t/flush_read_lock.test: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/t/flush_read_lock_kill-master.opt: We no longer need to use make_global_read_lock_block_commit_loop debug tag in this test. Instead we rely on an appropriate debug_sync point in MDL code. mysql-test/t/flush_read_lock_kill.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/t/lock_multi.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". mysql-test/t/mdl_sync.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. Updated thread state names which are used when DDL waits for FTWRL. mysql-test/t/trigger_notembedded.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". sql/event_data_objects.cc: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_data_objects.h: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_db_repository.cc: - Changed Event_db_repository methods to not release all metadata locks once they are done updating mysql.events table. This allows to keep metadata lock protecting against GRL and lock protecting particular event around until corresponding DDL statement is written to the binary log. - Removed logic for conditional update of "status" and "last_executed" fields from update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" is too much hassle. sql/event_db_repository.h: Removed logic for conditional update of "status" and "last_executed" fields from Event_db_repository:: update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" field is too much hassle. sql/event_queue.cc: Changed event scheduler code not to update mysql.events table while holding Event_queue::LOCK_event_queue mutex. Doing so led to a deadlock with a new GRL implementation. This deadlock didn't occur with old implementation due to fact that code acquiring protection against GRL ignored pending GRL requests (which lead to GRL starvation). One of goals of new implementation is to disallow GRL starvation and so we have to solve problem with this deadlock in a different way. sql/events.cc: Changed methods of Events class to acquire protection against GRL while perfoming DDL statement and keep it until statement is written to the binary log. Unfortunately this step together with new GRL implementation exposed deadlock involving Events::LOCK_event_metadata and GRL. To solve it Events::LOCK_event_metadata mutex was replaced with a metadata lock on event. As a side-effect events DDL has to be prohibited under LOCK TABLES even in cases when mysql.events table was explicitly locked for write. sql/events.h: Replaced Events::LOCK_event_metadata mutex with a metadata lock on event. sql/ha_ndbcluster.cc: Updated code after replacing custom global read lock implementation with one based on MDL. Since MDL subsystem should now be able to detect deadlocks involving metadata locks and GRL there is no need for special handling of active GRL. sql/handler.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. sql/lock.cc: Replaced custom implementation of global read lock with one based on metadata locks. This step allows to expose wait for GRL to deadlock detector of MDL subsystem and thus succesfully resolve deadlocks similar to one behind bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". It also solves problem with GRL starvation described in bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'" since metadata locks used by GRL give preference to FTWRL statement instead of DML statements (if needed in future this can be changed to fair scheduling). Similar to old implementation of acquisition of GRL is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. To support this change: - Global_read_lock::lock/unlock_global_read_lock and make_global_read_lock_block_commit methods were changed accordingly. - Global_read_lock::wait_if_global_read_lock() and start_waiting_global_read_lock() methods were dropped. It is now responsibility of code acquiring metadata locks opening tables to acquire protection against GRL by explicitly taking global IX lock with statement duration. - Global variables, mutex and condition variable used by old implementation was removed. - lock_routine_name() was changed to use statement duration for its global IX lock. It was also renamed to lock_object_name() as it now also used to take metadata locks on events. - Global_read_lock::set_explicit_lock_duration() was added which allows not to release locks used for GRL when leaving prelocked mode. sql/lock.h: - Renamed lock_routine_name() to lock_object_name() and changed its signature to allow its usage for events. - Removed broadcast_refresh() function. It is no longer needed with new GRL implementation. sql/log_event.cc: Release metadata locks with statement duration at the end of processing legacy event for LOAD DATA. This ensures that replication thread processing such event properly releases its protection against global read lock. sql/mdl.cc: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Changed thread state name for GLOBAL namespace to "Waiting for global read lock". Optimized MDL_map::find_or_insert() method to avoid taking m_mutex mutex when looking up MDL_lock objects for GLOBAL or COMMIT namespaces. We keep pre-created MDL_lock objects for these namespaces around and simply return pointers to these global objects when needed. Changed MDL_lock/MDL_scoped_lock to properly handle notification of insert delayed handler threads when FTWRL takes global S lock. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mdl.h: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mysqld.cc: Removed global mutex and condition variables which were used by old implementation of GRL. Also we no longer need to initialize Events::LOCK_event_metadata mutex as it was replaced with metadata locks on events. sql/mysqld.h: Removed global variable, mutex and condition variables which were used by old implementation of GRL. sql/rpl_rli.cc: When slave thread closes tables which were open for handling of RBR events ensure that it releases global IX lock which was acquired as protection against GRL. sql/sp.cc: Adjusted code to the new signature of lock_object/routine_name(), to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sp_head.cc: Ensure that statements in stored procedures release statement metadata locks and thus release their protectiong against GRL in proper moment in time. Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_admin.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_base.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. Code doing this also responsible for checking that current connection has no active GRL by calling an Global_read_lock::can_acquire_protection() method. Changed code in open_table() and lock_table_names() accordingly. Note that as result of this change DDL and DML on temporary tables is always compatible with GRL (before it was incompatible in some cases and compatible in other cases). - To speed-up code acquiring protection against GRL introduced m_has_protection_against_grl member in Open_table_context class. It indicates that protection was already acquired sometime during open_tables() execution and new attempts can be skipped. - Thanks to new GRL implementation calls to broadcast_refresh() became unnecessary and were removed. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_base.h: Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. Also introduced Open_table_context::m_has_protection_against_grl member which allows to avoid acquiring protection against GRL while opening tables if such protection was already acquired. sql/sql_class.cc: Changed THD::leave_locked_tables_mode() after transactional sentinel for metadata locks was obsoleted by introduction of locks with explicit duration. sql/sql_class.h: - Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. - Changed Global_read_lock class according to changes in global read lock implementation: * wait_if_global_read_lock and start_waiting_global_read_lock are now gone. Instead code needing protection against GRL has to acquire global IX metadata lock with statement duration itself. To help it new can_acquire_protection() was introduced. Also as result of the above change m_protection_count member is gone too. * Added m_mdl_blocks_commits_lock member to store metadata lock blocking commits. * Adjusted code to the fact that concept of transactional sentinel was obsoleted by concept of lock duration. - Removed CF_PROTECT_AGAINST_GRL flag as it is no longer necessary. New GRL implementation acquires protection against global read lock automagically when statement acquires metadata locks on tables or other objects it is going to change. sql/sql_db.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_handler.cc: Removed call to broadcast_refresh() function. It is no longer needed with new GRL implementation. Adjusted code after introducing duration concept for metadata locks. Particularly to the fact transactional sentinel was replaced with explicit duration. sql/sql_handler.h: Renamed mysql_ha_move_tickets_after_trans_sentinel() to mysql_ha_set_explicit_lock_duration() after transactional sentinel was obsoleted by locks with explicit duration. sql/sql_insert.cc: Adjusted code handling delaying inserts after switching to new GRL implementation. Now connection thread initiating delayed insert has to acquire global IX lock in addition to metadata lock on table being inserted into. This IX lock protects against GRL and similarly to SW lock on table being inserted into has to be passed to handler thread in order to avoid deadlocks. sql/sql_lex.cc: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_lex.h: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_parse.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. This lock is automatically released at the end of statement execution. - Changed implementation of CREATE/DROP PROCEDURE/FUNCTION not to release metadata locks and thus protection against of GRL in the middle of statement execution. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_prepare.cc: Adjusted code to the to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_rename.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before renaming tables. This happens automatically in code which acquires metadata locks on tables being renamed. sql/sql_show.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_table.cc: - With new GRL implementation there is no need to explicitly acquire protection against GRL before dropping tables. This happens automatically in code which acquires metadata locks on tables being dropped. - Changed mysql_alter_table() not to release lock on new table name explicitly and to rely on automatic release of locks at the end of statement instead. This was necessary since now MDL_context::release_lock() is supported only for locks for explicit duration. sql/sql_trigger.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before changing table triggers. This happens automatically in code which acquires metadata locks on tables which triggers are to be changed. sql/sql_update.cc: Fix bug exposed by GRL testing. During prepare phase acquire only S metadata locks instead of SW locks to keep prepare of multi-UPDATE compatible with concurrent LOCK TABLES WRITE and global read lock. sql/sql_view.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before creating view. This happens automatically in code which acquires metadata lock on view to be created. sql/sql_yacc.yy: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/table.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/table.h: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/transaction.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. Also adjusted code to the fact that MDL savepoint is now represented by MDL_savepoint class.
2010-11-11 18:11:05 +01:00
MDL_savepoint mdl_savepoint= thd->mdl_context.mdl_savepoint();
A pre-requisite patch for the fix for Bug#52044. This patch also fixes Bug#55452 "SET PASSWORD is replicated twice in RBR mode". The goal of this patch is to remove the release of metadata locks from close_thread_tables(). This is necessary to not mistakenly release the locks in the course of a multi-step operation that involves multiple close_thread_tables() or close_tables_for_reopen(). On the same token, move statement commit outside close_thread_tables(). Other cleanups: Cleanup COM_FIELD_LIST. Don't call close_thread_tables() in COM_SHUTDOWN -- there are no open tables there that can be closed (we leave the locked tables mode in THD destructor, and this close_thread_tables() won't leave it anyway). Make open_and_lock_tables() and open_and_lock_tables_derived() call close_thread_tables() upon failure. Remove the calls to close_thread_tables() that are now unnecessary. Simplify the back off condition in Open_table_context. Streamline metadata lock handling in LOCK TABLES implementation. Add asserts to ensure correct life cycle of statement transaction in a session. Remove a piece of dead code that has also become redundant after the fix for Bug 37521. mysql-test/r/variables.result: Update results: set @@autocommit and statement transaction/ prelocked mode. mysql-test/r/view.result: A harmless change in CHECK TABLE <view> status for a broken view. If previously a failure to prelock all functions used in a view would leave the connection in LTM_PRELOCKED mode, now we call close_thread_tables() from open_and_lock_tables() and leave prelocked mode, thus some check in mysql_admin_table() that works only in prelocked/locked tables mode is no longer activated. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Fixed Bug#55452 "SET PASSWORD is replicated twice in RBR mode": extra binlog events are gone from the binary log. mysql-test/t/variables.test: Add a test case: set autocommit and statement transaction/prelocked mode. sql/event_data_objects.cc: Simplify code in Event_job_data::execute(). Move sp_head memory management to lex_end(). sql/event_db_repository.cc: Move the release of metadata locks outside close_thread_tables(). Make sure we call close_thread_tables() when open_and_lock_tables() fails and remove extra code from the events data dictionary. Use close_mysql_tables(), a new internal function to properly close mysql.* tables in the data dictionary. Contract Event_db_repository::drop_events_by_field, drop_schema_events into one function. When dropping all events in a schema, make sure we don't mistakenly release all locks acquired by DROP DATABASE. These include locks on the database name and the global intention exclusive metadata lock. sql/event_db_repository.h: Function open_event_table() does not require an instance of Event_db_repository. sql/events.cc: Use close_mysql_tables() instead of close_thread_tables() to bootstrap events, since the latter no longer releases metadata locks. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 no longer releases acquired metadata locks. Do it in the caller. sql/ha_ndbcluster_binlog.cc: Deploy the new protocol for closing thread tables in run_query() and ndb_binlog_index code. sql/handler.cc: Assert that we never call ha_commit_trans/ ha_rollback_trans in sub-statement, which is now the case. sql/handler.h: Add an accessor to check whether THD_TRANS object is empty (has no transaction started). sql/log.cc: Update a comment. sql/log_event.cc: Since now we commit/rollback statement transaction in mysql_execute_command(), we need a mechanism to communicate from Query_log_event::do_apply_event() to mysql_execute_command() that the statement transaction should be rolled back, not committed. Ideally it would be a virtual method of THD. I hesitate to make THD a virtual base class in this already large patch. Use a thd->variables.option_bits for now. Remove a call to close_thread_tables() from the slave IO thread. It doesn't open any tables, and the protocol for closing thread tables is more complicated now. Make sure we properly close thread tables, however, in Load_data_log_event, which doesn't follow the standard server execution procedure with mysql_execute_command(). @todo: this piece should use Server_runnable framework instead. Remove an unnecessary call to mysql_unlock_tables(). sql/rpl_rli.cc: Update Relay_log_info::slave_close_thread_tables() to follow the new close protocol. sql/set_var.cc: Remove an unused header. sql/slave.cc: Remove an unnecessary call to close_thread_tables(). sql/sp.cc: Remove unnecessary calls to close_thread_tables() from SP DDL implementation. The tables will be closed by the caller, in mysql_execute_command(). When dropping all routines in a database, make sure to not mistakenly drop all metadata locks acquired so far, they include the scoped lock on the schema. sql/sp_head.cc: Correct the protocol that closes thread tables in an SP instruction. Clear lex->sphead before cleaning up lex with lex_end to make sure that we don't delete the sphead twice. It's considered to be "cleaner" and more in line with future changes than calling delete lex->sphead in other places that cleanup the lex. sql/sp_head.h: When destroying m_lex_keeper of an instruction, don't delete the sphead that all lex objects share. @todo: don't store a reference to routine's sp_head instance in instruction's lex. sql/sql_acl.cc: Don't call close_thread_tables() where the caller will do that for us. Fix Bug#55452 "SET PASSWORD is replicated twice in RBR mode" by disabling RBR replication in change_password() function. Use close_mysql_tables() in bootstrap and ACL reload code to make sure we release all metadata locks. sql/sql_base.cc: This is the main part of the patch: - remove manipulation with thd->transaction and thd->mdl_context from close_thread_tables(). Now this function is only responsible for closing tables, nothing else. This is necessary to be able to easily use close_thread_tables() in procedures, that involve multiple open/close tables, which all need to be protected continuously by metadata locks. Add asserts ensuring that TABLE object is only used when is protected by a metadata lock. Simplify the back off condition of Open_table_context, we no longer need to look at the autocommit mode. Make open_and_lock_tables() and open_normal_and_derived_tables() close thread tables and release metadata locks acquired so-far upon failure. This simplifies their usage. Implement close_mysql_tables(). sql/sql_base.h: Add declaration for close_mysql_tables(). sql/sql_class.cc: Remove a piece of dead code that has also become redundant after the fix for Bug 37521. The code became dead when my_eof() was made a non-protocol method, but a method that merely modifies the diagnostics area. The code became redundant with the fix for Bug#37521, when we started to cal close_thread_tables() before Protocol::end_statement(). sql/sql_do.cc: Do nothing in DO if inside a substatement (the assert moved out of trans_rollback_stmt). sql/sql_handler.cc: Add comments. sql/sql_insert.cc: Remove dead code. Release metadata locks explicitly at the end of the delayed insert thread. sql/sql_lex.cc: Add destruction of lex->sphead to lex_end(), lex "reset" method called at the end of each statement. sql/sql_parse.cc: Move close_thread_tables() and other related cleanups to mysql_execute_command() from dispatch_command(). This has become possible after the fix for Bug#37521. Mark federated SERVER statements as DDL. Next step: make sure that we don't store eof packet in the query cache, and move the query cache code outside mysql_parse. Brush up the code of COM_FIELD_LIST. Remove unnecessary calls to close_thread_tables(). When killing a query, don't report "OK" if it was a suicide. sql/sql_parse.h: Remove declaration of a function that is now static. sql/sql_partition.cc: Remove an unnecessary call to close_thread_tables(). sql/sql_plugin.cc: open_and_lock_tables() will clean up after itself after a failure. Move close_thread_tables() above end: label, and replace with close_mysql_tables(), which will also release the metadata lock on mysql.plugin. sql/sql_prepare.cc: Now that we no longer release locks in close_thread_tables() statement prepare code has become more straightforward. Remove the now redundant check for thd->killed() (used only by the backup project) from Execute_server_runnable. Reorder code to take into account that now mysql_execute_command() performs lex->unit.cleanup() and close_thread_tables(). sql/sql_priv.h: Add a new option to server options to interact between the slave SQL thread and execution framework (hack). @todo: use a virtual method of class THD instead. sql/sql_servers.cc: Due to Bug 25705 replication of DROP/CREATE/ALTER SERVER is broken. Make sure at least we do not attempt to replicate these statements using RBR, as this violates the assert in close_mysql_tables(). sql/sql_table.cc: Do not release metadata locks in mysql_rm_table_part2, this is done by the caller. Do not call close_thread_tables() in mysql_create_table(), this is done by the caller. Fix a bug in DROP TABLE under LOCK TABLES when, upon error in wait_while_table_is_used() we would mistakenly release the metadata lock on a non-dropped table. Explicitly release metadata locks when doing an implicit commit. sql/sql_trigger.cc: Now that we delete lex->sphead in lex_end(), zero the trigger's sphead in lex after loading the trigger, to avoid double deletion. sql/sql_udf.cc: Use close_mysql_tables() instead of close_thread_tables(). sql/sys_vars.cc: Remove code added in scope of WL#4284 which would break when we perform set @@session.autocommit along with setting other variables and using tables or functions. A test case added to variables.test. sql/transaction.cc: Add asserts. sql/tztime.cc: Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 12:25:53 +02:00
DBUG_ENTER("Event_db_repository::drop_schema_events");
DBUG_PRINT("enter", ("field=%d schema=%s", field, schema.str));
if (open_event_table(thd, TL_WRITE, &table))
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
DBUG_VOID_RETURN;
/* only enabled events are in memory, so we go now and delete the rest */
Fix for LP#588251: doStartTableScan() result not checked. The issue was that we didn't always check result of ha_rnd_init() which caused a problem for handlers that returned an error in this code. - Changed prototype of ha_rnd_init() to ensure that we get a compile warning if result is not checked. - Added ha_rnd_init_with_error() that prints error on failure. - Checked all usage of ha_rnd_init() and ensure we generate an error message on failures. - Changed init_read_record() to return 1 on failure. sql/create_options.cc: Fixed wrong printf sql/event_db_repository.cc: Check result from init_read_record() sql/events.cc: Check result from init_read_record() sql/filesort.cc: Check result from ha_rnd_init() sql/ha_partition.cc: Check result from ha_rnd_init() sql/ha_partition.h: Fixed compiler warning sql/handler.cc: Added ha_rnd_init_with_error() Check result from ha_rnd_init() sql/handler.h: Added ha_rnd_init_with_error() Changed prototype of ha_rnd_init() to ensure that we get a compile warning if result is not checked sql/item_subselect.cc: Check result from ha_rnd_init() sql/log.cc: Check result from ha_rnd_init() sql/log_event.cc: Check result from ha_rnd_init() sql/log_event_old.cc: Check result from ha_rnd_init() sql/mysql_priv.h: init_read_record() now returns error code on failure sql/opt_range.cc: Check result from ha_rnd_init() sql/records.cc: init_read_record() now returns error code on failure Check result from ha_rnd_init() sql/sql_acl.cc: Check result from init_read_record() sql/sql_cursor.cc: Print error if ha_rnd_init() fails sql/sql_delete.cc: Check result from init_read_record() sql/sql_help.cc: Check result from init_read_record() sql/sql_plugin.cc: Check result from init_read_record() sql/sql_select.cc: Check result from ha_rnd_init() Print error if ha_rnd_init() fails. sql/sql_servers.cc: Check result from init_read_record() sql/sql_table.cc: Check result from init_read_record() sql/sql_udf.cc: Check result from init_read_record() sql/sql_update.cc: Check result from init_read_record() storage/example/ha_example.cc: Don't return error on rnd_init() storage/ibmdb2i/ha_ibmdb2i.cc: Removed not relevant comment
2010-07-17 00:41:44 +02:00
if (init_read_record(&read_record_info, thd, table, NULL, 1, 0, FALSE))
goto end;
while (!ret && !(read_record_info.read_record(&read_record_info)) )
{
char *et_field= get_field(thd->mem_root, table->field[field]);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
/* et_field may be NULL if the table is corrupted or out of memory */
if (et_field)
{
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
LEX_STRING et_field_lex= { et_field, strlen(et_field) };
DBUG_PRINT("info", ("Current event %s name=%s", et_field,
get_field(thd->mem_root,
table->field[ET_FIELD_NAME])));
A pre-requisite patch for the fix for Bug#52044. This patch also fixes Bug#55452 "SET PASSWORD is replicated twice in RBR mode". The goal of this patch is to remove the release of metadata locks from close_thread_tables(). This is necessary to not mistakenly release the locks in the course of a multi-step operation that involves multiple close_thread_tables() or close_tables_for_reopen(). On the same token, move statement commit outside close_thread_tables(). Other cleanups: Cleanup COM_FIELD_LIST. Don't call close_thread_tables() in COM_SHUTDOWN -- there are no open tables there that can be closed (we leave the locked tables mode in THD destructor, and this close_thread_tables() won't leave it anyway). Make open_and_lock_tables() and open_and_lock_tables_derived() call close_thread_tables() upon failure. Remove the calls to close_thread_tables() that are now unnecessary. Simplify the back off condition in Open_table_context. Streamline metadata lock handling in LOCK TABLES implementation. Add asserts to ensure correct life cycle of statement transaction in a session. Remove a piece of dead code that has also become redundant after the fix for Bug 37521. mysql-test/r/variables.result: Update results: set @@autocommit and statement transaction/ prelocked mode. mysql-test/r/view.result: A harmless change in CHECK TABLE <view> status for a broken view. If previously a failure to prelock all functions used in a view would leave the connection in LTM_PRELOCKED mode, now we call close_thread_tables() from open_and_lock_tables() and leave prelocked mode, thus some check in mysql_admin_table() that works only in prelocked/locked tables mode is no longer activated. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Fixed Bug#55452 "SET PASSWORD is replicated twice in RBR mode": extra binlog events are gone from the binary log. mysql-test/t/variables.test: Add a test case: set autocommit and statement transaction/prelocked mode. sql/event_data_objects.cc: Simplify code in Event_job_data::execute(). Move sp_head memory management to lex_end(). sql/event_db_repository.cc: Move the release of metadata locks outside close_thread_tables(). Make sure we call close_thread_tables() when open_and_lock_tables() fails and remove extra code from the events data dictionary. Use close_mysql_tables(), a new internal function to properly close mysql.* tables in the data dictionary. Contract Event_db_repository::drop_events_by_field, drop_schema_events into one function. When dropping all events in a schema, make sure we don't mistakenly release all locks acquired by DROP DATABASE. These include locks on the database name and the global intention exclusive metadata lock. sql/event_db_repository.h: Function open_event_table() does not require an instance of Event_db_repository. sql/events.cc: Use close_mysql_tables() instead of close_thread_tables() to bootstrap events, since the latter no longer releases metadata locks. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 no longer releases acquired metadata locks. Do it in the caller. sql/ha_ndbcluster_binlog.cc: Deploy the new protocol for closing thread tables in run_query() and ndb_binlog_index code. sql/handler.cc: Assert that we never call ha_commit_trans/ ha_rollback_trans in sub-statement, which is now the case. sql/handler.h: Add an accessor to check whether THD_TRANS object is empty (has no transaction started). sql/log.cc: Update a comment. sql/log_event.cc: Since now we commit/rollback statement transaction in mysql_execute_command(), we need a mechanism to communicate from Query_log_event::do_apply_event() to mysql_execute_command() that the statement transaction should be rolled back, not committed. Ideally it would be a virtual method of THD. I hesitate to make THD a virtual base class in this already large patch. Use a thd->variables.option_bits for now. Remove a call to close_thread_tables() from the slave IO thread. It doesn't open any tables, and the protocol for closing thread tables is more complicated now. Make sure we properly close thread tables, however, in Load_data_log_event, which doesn't follow the standard server execution procedure with mysql_execute_command(). @todo: this piece should use Server_runnable framework instead. Remove an unnecessary call to mysql_unlock_tables(). sql/rpl_rli.cc: Update Relay_log_info::slave_close_thread_tables() to follow the new close protocol. sql/set_var.cc: Remove an unused header. sql/slave.cc: Remove an unnecessary call to close_thread_tables(). sql/sp.cc: Remove unnecessary calls to close_thread_tables() from SP DDL implementation. The tables will be closed by the caller, in mysql_execute_command(). When dropping all routines in a database, make sure to not mistakenly drop all metadata locks acquired so far, they include the scoped lock on the schema. sql/sp_head.cc: Correct the protocol that closes thread tables in an SP instruction. Clear lex->sphead before cleaning up lex with lex_end to make sure that we don't delete the sphead twice. It's considered to be "cleaner" and more in line with future changes than calling delete lex->sphead in other places that cleanup the lex. sql/sp_head.h: When destroying m_lex_keeper of an instruction, don't delete the sphead that all lex objects share. @todo: don't store a reference to routine's sp_head instance in instruction's lex. sql/sql_acl.cc: Don't call close_thread_tables() where the caller will do that for us. Fix Bug#55452 "SET PASSWORD is replicated twice in RBR mode" by disabling RBR replication in change_password() function. Use close_mysql_tables() in bootstrap and ACL reload code to make sure we release all metadata locks. sql/sql_base.cc: This is the main part of the patch: - remove manipulation with thd->transaction and thd->mdl_context from close_thread_tables(). Now this function is only responsible for closing tables, nothing else. This is necessary to be able to easily use close_thread_tables() in procedures, that involve multiple open/close tables, which all need to be protected continuously by metadata locks. Add asserts ensuring that TABLE object is only used when is protected by a metadata lock. Simplify the back off condition of Open_table_context, we no longer need to look at the autocommit mode. Make open_and_lock_tables() and open_normal_and_derived_tables() close thread tables and release metadata locks acquired so-far upon failure. This simplifies their usage. Implement close_mysql_tables(). sql/sql_base.h: Add declaration for close_mysql_tables(). sql/sql_class.cc: Remove a piece of dead code that has also become redundant after the fix for Bug 37521. The code became dead when my_eof() was made a non-protocol method, but a method that merely modifies the diagnostics area. The code became redundant with the fix for Bug#37521, when we started to cal close_thread_tables() before Protocol::end_statement(). sql/sql_do.cc: Do nothing in DO if inside a substatement (the assert moved out of trans_rollback_stmt). sql/sql_handler.cc: Add comments. sql/sql_insert.cc: Remove dead code. Release metadata locks explicitly at the end of the delayed insert thread. sql/sql_lex.cc: Add destruction of lex->sphead to lex_end(), lex "reset" method called at the end of each statement. sql/sql_parse.cc: Move close_thread_tables() and other related cleanups to mysql_execute_command() from dispatch_command(). This has become possible after the fix for Bug#37521. Mark federated SERVER statements as DDL. Next step: make sure that we don't store eof packet in the query cache, and move the query cache code outside mysql_parse. Brush up the code of COM_FIELD_LIST. Remove unnecessary calls to close_thread_tables(). When killing a query, don't report "OK" if it was a suicide. sql/sql_parse.h: Remove declaration of a function that is now static. sql/sql_partition.cc: Remove an unnecessary call to close_thread_tables(). sql/sql_plugin.cc: open_and_lock_tables() will clean up after itself after a failure. Move close_thread_tables() above end: label, and replace with close_mysql_tables(), which will also release the metadata lock on mysql.plugin. sql/sql_prepare.cc: Now that we no longer release locks in close_thread_tables() statement prepare code has become more straightforward. Remove the now redundant check for thd->killed() (used only by the backup project) from Execute_server_runnable. Reorder code to take into account that now mysql_execute_command() performs lex->unit.cleanup() and close_thread_tables(). sql/sql_priv.h: Add a new option to server options to interact between the slave SQL thread and execution framework (hack). @todo: use a virtual method of class THD instead. sql/sql_servers.cc: Due to Bug 25705 replication of DROP/CREATE/ALTER SERVER is broken. Make sure at least we do not attempt to replicate these statements using RBR, as this violates the assert in close_mysql_tables(). sql/sql_table.cc: Do not release metadata locks in mysql_rm_table_part2, this is done by the caller. Do not call close_thread_tables() in mysql_create_table(), this is done by the caller. Fix a bug in DROP TABLE under LOCK TABLES when, upon error in wait_while_table_is_used() we would mistakenly release the metadata lock on a non-dropped table. Explicitly release metadata locks when doing an implicit commit. sql/sql_trigger.cc: Now that we delete lex->sphead in lex_end(), zero the trigger's sphead in lex after loading the trigger, to avoid double deletion. sql/sql_udf.cc: Use close_mysql_tables() instead of close_thread_tables(). sql/sys_vars.cc: Remove code added in scope of WL#4284 which would break when we perform set @@session.autocommit along with setting other variables and using tables or functions. A test case added to variables.test. sql/transaction.cc: Add asserts. sql/tztime.cc: Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 12:25:53 +02:00
if (!sortcmp_lex_string(et_field_lex, schema, system_charset_info))
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
{
DBUG_PRINT("info", ("Dropping"));
if ((ret= table->file->ha_delete_row(table->record[0])))
table->file->print_error(ret, MYF(0));
}
}
}
end_read_record(&read_record_info);
Fix for LP#588251: doStartTableScan() result not checked. The issue was that we didn't always check result of ha_rnd_init() which caused a problem for handlers that returned an error in this code. - Changed prototype of ha_rnd_init() to ensure that we get a compile warning if result is not checked. - Added ha_rnd_init_with_error() that prints error on failure. - Checked all usage of ha_rnd_init() and ensure we generate an error message on failures. - Changed init_read_record() to return 1 on failure. sql/create_options.cc: Fixed wrong printf sql/event_db_repository.cc: Check result from init_read_record() sql/events.cc: Check result from init_read_record() sql/filesort.cc: Check result from ha_rnd_init() sql/ha_partition.cc: Check result from ha_rnd_init() sql/ha_partition.h: Fixed compiler warning sql/handler.cc: Added ha_rnd_init_with_error() Check result from ha_rnd_init() sql/handler.h: Added ha_rnd_init_with_error() Changed prototype of ha_rnd_init() to ensure that we get a compile warning if result is not checked sql/item_subselect.cc: Check result from ha_rnd_init() sql/log.cc: Check result from ha_rnd_init() sql/log_event.cc: Check result from ha_rnd_init() sql/log_event_old.cc: Check result from ha_rnd_init() sql/mysql_priv.h: init_read_record() now returns error code on failure sql/opt_range.cc: Check result from ha_rnd_init() sql/records.cc: init_read_record() now returns error code on failure Check result from ha_rnd_init() sql/sql_acl.cc: Check result from init_read_record() sql/sql_cursor.cc: Print error if ha_rnd_init() fails sql/sql_delete.cc: Check result from init_read_record() sql/sql_help.cc: Check result from init_read_record() sql/sql_plugin.cc: Check result from init_read_record() sql/sql_select.cc: Check result from ha_rnd_init() Print error if ha_rnd_init() fails. sql/sql_servers.cc: Check result from init_read_record() sql/sql_table.cc: Check result from init_read_record() sql/sql_udf.cc: Check result from init_read_record() sql/sql_update.cc: Check result from init_read_record() storage/example/ha_example.cc: Don't return error on rnd_init() storage/ibmdb2i/ha_ibmdb2i.cc: Removed not relevant comment
2010-07-17 00:41:44 +02:00
end:
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
close_thread_tables(thd);
A pre-requisite patch for the fix for Bug#52044. This patch also fixes Bug#55452 "SET PASSWORD is replicated twice in RBR mode". The goal of this patch is to remove the release of metadata locks from close_thread_tables(). This is necessary to not mistakenly release the locks in the course of a multi-step operation that involves multiple close_thread_tables() or close_tables_for_reopen(). On the same token, move statement commit outside close_thread_tables(). Other cleanups: Cleanup COM_FIELD_LIST. Don't call close_thread_tables() in COM_SHUTDOWN -- there are no open tables there that can be closed (we leave the locked tables mode in THD destructor, and this close_thread_tables() won't leave it anyway). Make open_and_lock_tables() and open_and_lock_tables_derived() call close_thread_tables() upon failure. Remove the calls to close_thread_tables() that are now unnecessary. Simplify the back off condition in Open_table_context. Streamline metadata lock handling in LOCK TABLES implementation. Add asserts to ensure correct life cycle of statement transaction in a session. Remove a piece of dead code that has also become redundant after the fix for Bug 37521. mysql-test/r/variables.result: Update results: set @@autocommit and statement transaction/ prelocked mode. mysql-test/r/view.result: A harmless change in CHECK TABLE <view> status for a broken view. If previously a failure to prelock all functions used in a view would leave the connection in LTM_PRELOCKED mode, now we call close_thread_tables() from open_and_lock_tables() and leave prelocked mode, thus some check in mysql_admin_table() that works only in prelocked/locked tables mode is no longer activated. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Fixed Bug#55452 "SET PASSWORD is replicated twice in RBR mode": extra binlog events are gone from the binary log. mysql-test/t/variables.test: Add a test case: set autocommit and statement transaction/prelocked mode. sql/event_data_objects.cc: Simplify code in Event_job_data::execute(). Move sp_head memory management to lex_end(). sql/event_db_repository.cc: Move the release of metadata locks outside close_thread_tables(). Make sure we call close_thread_tables() when open_and_lock_tables() fails and remove extra code from the events data dictionary. Use close_mysql_tables(), a new internal function to properly close mysql.* tables in the data dictionary. Contract Event_db_repository::drop_events_by_field, drop_schema_events into one function. When dropping all events in a schema, make sure we don't mistakenly release all locks acquired by DROP DATABASE. These include locks on the database name and the global intention exclusive metadata lock. sql/event_db_repository.h: Function open_event_table() does not require an instance of Event_db_repository. sql/events.cc: Use close_mysql_tables() instead of close_thread_tables() to bootstrap events, since the latter no longer releases metadata locks. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 no longer releases acquired metadata locks. Do it in the caller. sql/ha_ndbcluster_binlog.cc: Deploy the new protocol for closing thread tables in run_query() and ndb_binlog_index code. sql/handler.cc: Assert that we never call ha_commit_trans/ ha_rollback_trans in sub-statement, which is now the case. sql/handler.h: Add an accessor to check whether THD_TRANS object is empty (has no transaction started). sql/log.cc: Update a comment. sql/log_event.cc: Since now we commit/rollback statement transaction in mysql_execute_command(), we need a mechanism to communicate from Query_log_event::do_apply_event() to mysql_execute_command() that the statement transaction should be rolled back, not committed. Ideally it would be a virtual method of THD. I hesitate to make THD a virtual base class in this already large patch. Use a thd->variables.option_bits for now. Remove a call to close_thread_tables() from the slave IO thread. It doesn't open any tables, and the protocol for closing thread tables is more complicated now. Make sure we properly close thread tables, however, in Load_data_log_event, which doesn't follow the standard server execution procedure with mysql_execute_command(). @todo: this piece should use Server_runnable framework instead. Remove an unnecessary call to mysql_unlock_tables(). sql/rpl_rli.cc: Update Relay_log_info::slave_close_thread_tables() to follow the new close protocol. sql/set_var.cc: Remove an unused header. sql/slave.cc: Remove an unnecessary call to close_thread_tables(). sql/sp.cc: Remove unnecessary calls to close_thread_tables() from SP DDL implementation. The tables will be closed by the caller, in mysql_execute_command(). When dropping all routines in a database, make sure to not mistakenly drop all metadata locks acquired so far, they include the scoped lock on the schema. sql/sp_head.cc: Correct the protocol that closes thread tables in an SP instruction. Clear lex->sphead before cleaning up lex with lex_end to make sure that we don't delete the sphead twice. It's considered to be "cleaner" and more in line with future changes than calling delete lex->sphead in other places that cleanup the lex. sql/sp_head.h: When destroying m_lex_keeper of an instruction, don't delete the sphead that all lex objects share. @todo: don't store a reference to routine's sp_head instance in instruction's lex. sql/sql_acl.cc: Don't call close_thread_tables() where the caller will do that for us. Fix Bug#55452 "SET PASSWORD is replicated twice in RBR mode" by disabling RBR replication in change_password() function. Use close_mysql_tables() in bootstrap and ACL reload code to make sure we release all metadata locks. sql/sql_base.cc: This is the main part of the patch: - remove manipulation with thd->transaction and thd->mdl_context from close_thread_tables(). Now this function is only responsible for closing tables, nothing else. This is necessary to be able to easily use close_thread_tables() in procedures, that involve multiple open/close tables, which all need to be protected continuously by metadata locks. Add asserts ensuring that TABLE object is only used when is protected by a metadata lock. Simplify the back off condition of Open_table_context, we no longer need to look at the autocommit mode. Make open_and_lock_tables() and open_normal_and_derived_tables() close thread tables and release metadata locks acquired so-far upon failure. This simplifies their usage. Implement close_mysql_tables(). sql/sql_base.h: Add declaration for close_mysql_tables(). sql/sql_class.cc: Remove a piece of dead code that has also become redundant after the fix for Bug 37521. The code became dead when my_eof() was made a non-protocol method, but a method that merely modifies the diagnostics area. The code became redundant with the fix for Bug#37521, when we started to cal close_thread_tables() before Protocol::end_statement(). sql/sql_do.cc: Do nothing in DO if inside a substatement (the assert moved out of trans_rollback_stmt). sql/sql_handler.cc: Add comments. sql/sql_insert.cc: Remove dead code. Release metadata locks explicitly at the end of the delayed insert thread. sql/sql_lex.cc: Add destruction of lex->sphead to lex_end(), lex "reset" method called at the end of each statement. sql/sql_parse.cc: Move close_thread_tables() and other related cleanups to mysql_execute_command() from dispatch_command(). This has become possible after the fix for Bug#37521. Mark federated SERVER statements as DDL. Next step: make sure that we don't store eof packet in the query cache, and move the query cache code outside mysql_parse. Brush up the code of COM_FIELD_LIST. Remove unnecessary calls to close_thread_tables(). When killing a query, don't report "OK" if it was a suicide. sql/sql_parse.h: Remove declaration of a function that is now static. sql/sql_partition.cc: Remove an unnecessary call to close_thread_tables(). sql/sql_plugin.cc: open_and_lock_tables() will clean up after itself after a failure. Move close_thread_tables() above end: label, and replace with close_mysql_tables(), which will also release the metadata lock on mysql.plugin. sql/sql_prepare.cc: Now that we no longer release locks in close_thread_tables() statement prepare code has become more straightforward. Remove the now redundant check for thd->killed() (used only by the backup project) from Execute_server_runnable. Reorder code to take into account that now mysql_execute_command() performs lex->unit.cleanup() and close_thread_tables(). sql/sql_priv.h: Add a new option to server options to interact between the slave SQL thread and execution framework (hack). @todo: use a virtual method of class THD instead. sql/sql_servers.cc: Due to Bug 25705 replication of DROP/CREATE/ALTER SERVER is broken. Make sure at least we do not attempt to replicate these statements using RBR, as this violates the assert in close_mysql_tables(). sql/sql_table.cc: Do not release metadata locks in mysql_rm_table_part2, this is done by the caller. Do not call close_thread_tables() in mysql_create_table(), this is done by the caller. Fix a bug in DROP TABLE under LOCK TABLES when, upon error in wait_while_table_is_used() we would mistakenly release the metadata lock on a non-dropped table. Explicitly release metadata locks when doing an implicit commit. sql/sql_trigger.cc: Now that we delete lex->sphead in lex_end(), zero the trigger's sphead in lex after loading the trigger, to avoid double deletion. sql/sql_udf.cc: Use close_mysql_tables() instead of close_thread_tables(). sql/sys_vars.cc: Remove code added in scope of WL#4284 which would break when we perform set @@session.autocommit along with setting other variables and using tables or functions. A test case added to variables.test. sql/transaction.cc: Add asserts. sql/tztime.cc: Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 12:25:53 +02:00
/*
Make sure to only release the MDL lock on mysql.event, not other
metadata locks DROP DATABASE might have acquired.
*/
thd->mdl_context.rollback_to_savepoint(mdl_savepoint);
WL#3337 (Event scheduler new architecture) Post-review fixes. Mostly whitespace, int-to-bool return value, fixed comments sql/Makefile.am: compile all submodules of Events before compiling the facade sql/event_data_objects.cc: - Use initialization list - Clean whitespaces - Shorten comments - Fix comments sql/event_data_objects.h: - Fix whitespace sql/event_db_repository.cc: - Change return type from int to bool where only one error code is returned. - Don't use macros but get the maximal number of characters in a column from the column - Fix comments - Make functions which has return value but it's not used - void. sql/event_db_repository.h: - Methods with only one error code int -> bool return value - Remove declaration of fill_schema_events, a function that does not exist sql/event_queue.cc: - Use initialization lists - Let find_n_remove_event delete the object thus making the code more robust. The caller could forget to destruct the object. In addition, find_n_remove_element() does not return a value. - Move check_system_tables() to class Events - Fix comments sql/event_queue.h: - Whitespace changes - init_queue() should allow passing of THD - check_system_tables moved to class Events - find_n_remove_event() is now void sql/event_scheduler.cc: - Initialize res before use - Remove end stop from message sql/event_scheduler.h: Add uninitialized state. The scheduler is in it before init_scheduler() is called. The rationale is that otherwise state has no value before the call. If the system tables were damaged the scheduler won't be initialized but in Events::deinit() Event_scheduler::stop() will be called and this will touch state, generating valgrind warning at minimum. sql/events.cc: - Whitespace changes - Fix comments - Make methods which have only one error code be bool instead of int - Create temporarily a THD to be used for the initialization of Event_queue - Event_queue::check_system_tables() moved to Events::check_system_tables - is_started() is renamed to is_execution_of_events_started() sql/events.h: - Whitespace changes - When a method returns only one error code it should be bool, not int - is_started() renamed to is_execution_of_events_started() sql/set_var.cc: is_started() is renamed to is_execution_of_events_started() sql/sql_db.cc: The return code is not used, thus don't return anything and drop_schema_events() is now void. sql/sql_yacc.yy: - Fix comments - Remove unneeded initialization which is performed in lex_init() sql/share/errmsg.txt: New error message sql/table.cc: - Fix comments - make table_check_intact() accespt const *table_def sql/table.h: Make table_check_intact() accespt const *table_def
2006-08-17 14:22:59 +02:00
DBUG_VOID_RETURN;
}
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
/**
WL#3337 (Event scheduler new architecture) Cleaned up the code a bit. Fixed few leaks. This code still does not load events on server startup from disk. The problem is that there is a need for a THD instance, which does not exist during server boot. This will be solved soon. Still Event_timed is used both for the memory queue and for exectution. This will be changed according to WL#3337 probably in the next commit. sql/event_data_objects.cc: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_data_objects.h: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_db_repository.cc: Cosmetics. Add a new method load_named_event_job, to be made complete in the next commit. It will load from disk an instance of Event_job_data to be used during execution. sql/event_db_repository.h: find_event does not need MEM_ROOT anymore because the memory is allocated on Event's own root. sql/event_queue.cc: Remove dead code. Move dumping of the queue to separate method. Make critical sections in create_event & update_event as small as possible - load the new event outside of the section and free the object also outside of it. sql/event_queue.h: init -> init_queue -> easier for ctags deinit -> deinit_queue -> easier for ctags sql/event_scheduler.cc: empty this file sql/event_scheduler.h: empty this file sql/event_scheduler_ng.cc: add back DBUG_RETURN(0) in thread handlers. We don't stop running events when stopping the scheduler. Therefore remove this method now. If it is needed later it can be added back. sql/event_scheduler_ng.h: Remove stop_all_running_threads() init -> init_scheduler deinit -> deinit_scheduler easier for ctags sql/events.cc: Cosmetics sql/events.h: Cosmetics sql/set_var.cc: Remove references to dead code sql/sql_parse.cc: Reorganize a bit.
2006-07-05 17:12:50 +02:00
Looks for a named event in mysql.event and then loads it from
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
the table.
WL#3337 (Event scheduler new architecture) Cleaned up the code a bit. Fixed few leaks. This code still does not load events on server startup from disk. The problem is that there is a need for a THD instance, which does not exist during server boot. This will be solved soon. Still Event_timed is used both for the memory queue and for exectution. This will be changed according to WL#3337 probably in the next commit. sql/event_data_objects.cc: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_data_objects.h: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_db_repository.cc: Cosmetics. Add a new method load_named_event_job, to be made complete in the next commit. It will load from disk an instance of Event_job_data to be used during execution. sql/event_db_repository.h: find_event does not need MEM_ROOT anymore because the memory is allocated on Event's own root. sql/event_queue.cc: Remove dead code. Move dumping of the queue to separate method. Make critical sections in create_event & update_event as small as possible - load the new event outside of the section and free the object also outside of it. sql/event_queue.h: init -> init_queue -> easier for ctags deinit -> deinit_queue -> easier for ctags sql/event_scheduler.cc: empty this file sql/event_scheduler.h: empty this file sql/event_scheduler_ng.cc: add back DBUG_RETURN(0) in thread handlers. We don't stop running events when stopping the scheduler. Therefore remove this method now. If it is needed later it can be added back. sql/event_scheduler_ng.h: Remove stop_all_running_threads() init -> init_scheduler deinit -> deinit_scheduler easier for ctags sql/events.cc: Cosmetics sql/events.h: Cosmetics sql/set_var.cc: Remove references to dead code sql/sql_parse.cc: Reorganize a bit.
2006-07-05 17:12:50 +02:00
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
@pre The given thread does not have open tables.
WL#3337 (Event scheduler new architecture) Cleaned up the code a bit. Fixed few leaks. This code still does not load events on server startup from disk. The problem is that there is a need for a THD instance, which does not exist during server boot. This will be solved soon. Still Event_timed is used both for the memory queue and for exectution. This will be changed according to WL#3337 probably in the next commit. sql/event_data_objects.cc: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_data_objects.h: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_db_repository.cc: Cosmetics. Add a new method load_named_event_job, to be made complete in the next commit. It will load from disk an instance of Event_job_data to be used during execution. sql/event_db_repository.h: find_event does not need MEM_ROOT anymore because the memory is allocated on Event's own root. sql/event_queue.cc: Remove dead code. Move dumping of the queue to separate method. Make critical sections in create_event & update_event as small as possible - load the new event outside of the section and free the object also outside of it. sql/event_queue.h: init -> init_queue -> easier for ctags deinit -> deinit_queue -> easier for ctags sql/event_scheduler.cc: empty this file sql/event_scheduler.h: empty this file sql/event_scheduler_ng.cc: add back DBUG_RETURN(0) in thread handlers. We don't stop running events when stopping the scheduler. Therefore remove this method now. If it is needed later it can be added back. sql/event_scheduler_ng.h: Remove stop_all_running_threads() init -> init_scheduler deinit -> deinit_scheduler easier for ctags sql/events.cc: Cosmetics sql/events.h: Cosmetics sql/set_var.cc: Remove references to dead code sql/sql_parse.cc: Reorganize a bit.
2006-07-05 17:12:50 +02:00
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
@retval FALSE success
@retval TRUE error
WL#3337 (Event scheduler new architecture) Cleaned up the code a bit. Fixed few leaks. This code still does not load events on server startup from disk. The problem is that there is a need for a THD instance, which does not exist during server boot. This will be solved soon. Still Event_timed is used both for the memory queue and for exectution. This will be changed according to WL#3337 probably in the next commit. sql/event_data_objects.cc: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_data_objects.h: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_db_repository.cc: Cosmetics. Add a new method load_named_event_job, to be made complete in the next commit. It will load from disk an instance of Event_job_data to be used during execution. sql/event_db_repository.h: find_event does not need MEM_ROOT anymore because the memory is allocated on Event's own root. sql/event_queue.cc: Remove dead code. Move dumping of the queue to separate method. Make critical sections in create_event & update_event as small as possible - load the new event outside of the section and free the object also outside of it. sql/event_queue.h: init -> init_queue -> easier for ctags deinit -> deinit_queue -> easier for ctags sql/event_scheduler.cc: empty this file sql/event_scheduler.h: empty this file sql/event_scheduler_ng.cc: add back DBUG_RETURN(0) in thread handlers. We don't stop running events when stopping the scheduler. Therefore remove this method now. If it is needed later it can be added back. sql/event_scheduler_ng.h: Remove stop_all_running_threads() init -> init_scheduler deinit -> deinit_scheduler easier for ctags sql/events.cc: Cosmetics sql/events.h: Cosmetics sql/set_var.cc: Remove references to dead code sql/sql_parse.cc: Reorganize a bit.
2006-07-05 17:12:50 +02:00
*/
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
bool
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
Event_db_repository::load_named_event(THD *thd, LEX_STRING dbname,
LEX_STRING name, Event_basic *etn)
WL#3337 (Event scheduler new architecture) Cleaned up the code a bit. Fixed few leaks. This code still does not load events on server startup from disk. The problem is that there is a need for a THD instance, which does not exist during server boot. This will be solved soon. Still Event_timed is used both for the memory queue and for exectution. This will be changed according to WL#3337 probably in the next commit. sql/event_data_objects.cc: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_data_objects.h: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_db_repository.cc: Cosmetics. Add a new method load_named_event_job, to be made complete in the next commit. It will load from disk an instance of Event_job_data to be used during execution. sql/event_db_repository.h: find_event does not need MEM_ROOT anymore because the memory is allocated on Event's own root. sql/event_queue.cc: Remove dead code. Move dumping of the queue to separate method. Make critical sections in create_event & update_event as small as possible - load the new event outside of the section and free the object also outside of it. sql/event_queue.h: init -> init_queue -> easier for ctags deinit -> deinit_queue -> easier for ctags sql/event_scheduler.cc: empty this file sql/event_scheduler.h: empty this file sql/event_scheduler_ng.cc: add back DBUG_RETURN(0) in thread handlers. We don't stop running events when stopping the scheduler. Therefore remove this method now. If it is needed later it can be added back. sql/event_scheduler_ng.h: Remove stop_all_running_threads() init -> init_scheduler deinit -> deinit_scheduler easier for ctags sql/events.cc: Cosmetics sql/events.h: Cosmetics sql/set_var.cc: Remove references to dead code sql/sql_parse.cc: Reorganize a bit.
2006-07-05 17:12:50 +02:00
{
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
bool ret;
2011-11-02 12:55:46 +01:00
ulonglong saved_mode= thd->variables.sql_mode;
Open_tables_backup open_tables_backup;
TABLE_LIST event_table;
WL#3337 (Event scheduler new architecture) Cleaned up the code a bit. Fixed few leaks. This code still does not load events on server startup from disk. The problem is that there is a need for a THD instance, which does not exist during server boot. This will be solved soon. Still Event_timed is used both for the memory queue and for exectution. This will be changed according to WL#3337 probably in the next commit. sql/event_data_objects.cc: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_data_objects.h: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_db_repository.cc: Cosmetics. Add a new method load_named_event_job, to be made complete in the next commit. It will load from disk an instance of Event_job_data to be used during execution. sql/event_db_repository.h: find_event does not need MEM_ROOT anymore because the memory is allocated on Event's own root. sql/event_queue.cc: Remove dead code. Move dumping of the queue to separate method. Make critical sections in create_event & update_event as small as possible - load the new event outside of the section and free the object also outside of it. sql/event_queue.h: init -> init_queue -> easier for ctags deinit -> deinit_queue -> easier for ctags sql/event_scheduler.cc: empty this file sql/event_scheduler.h: empty this file sql/event_scheduler_ng.cc: add back DBUG_RETURN(0) in thread handlers. We don't stop running events when stopping the scheduler. Therefore remove this method now. If it is needed later it can be added back. sql/event_scheduler_ng.h: Remove stop_all_running_threads() init -> init_scheduler deinit -> deinit_scheduler easier for ctags sql/events.cc: Cosmetics sql/events.h: Cosmetics sql/set_var.cc: Remove references to dead code sql/sql_parse.cc: Reorganize a bit.
2006-07-05 17:12:50 +02:00
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
DBUG_ENTER("Event_db_repository::load_named_event");
WL#3817: Simplify string / memory area types and make things more consistent (first part) The following type conversions was done: - Changed byte to uchar - Changed gptr to uchar* - Change my_string to char * - Change my_size_t to size_t - Change size_s to size_t Removed declaration of byte, gptr, my_string, my_size_t and size_s. Following function parameter changes was done: - All string functions in mysys/strings was changed to use size_t instead of uint for string lengths. - All read()/write() functions changed to use size_t (including vio). - All protocoll functions changed to use size_t instead of uint - Functions that used a pointer to a string length was changed to use size_t* - Changed malloc(), free() and related functions from using gptr to use void * as this requires fewer casts in the code and is more in line with how the standard functions work. - Added extra length argument to dirname_part() to return the length of the created string. - Changed (at least) following functions to take uchar* as argument: - db_dump() - my_net_write() - net_write_command() - net_store_data() - DBUG_DUMP() - decimal2bin() & bin2decimal() - Changed my_compress() and my_uncompress() to use size_t. Changed one argument to my_uncompress() from a pointer to a value as we only return one value (makes function easier to use). - Changed type of 'pack_data' argument to packfrm() to avoid casts. - Changed in readfrm() and writefrom(), ha_discover and handler::discover() the type for argument 'frmdata' to uchar** to avoid casts. - Changed most Field functions to use uchar* instead of char* (reduced a lot of casts). - Changed field->val_xxx(xxx, new_ptr) to take const pointers. Other changes: - Removed a lot of not needed casts - Added a few new cast required by other changes - Added some cast to my_multi_malloc() arguments for safety (as string lengths needs to be uint, not size_t). - Fixed all calls to hash-get-key functions to use size_t*. (Needed to be done explicitely as this conflict was often hided by casting the function to hash_get_key). - Changed some buffers to memory regions to uchar* to avoid casts. - Changed some string lengths from uint to size_t. - Changed field->ptr to be uchar* instead of char*. This allowed us to get rid of a lot of casts. - Some changes from true -> TRUE, false -> FALSE, unsigned char -> uchar - Include zlib.h in some files as we needed declaration of crc32() - Changed MY_FILE_ERROR to be (size_t) -1. - Changed many variables to hold the result of my_read() / my_write() to be size_t. This was needed to properly detect errors (which are returned as (size_t) -1). - Removed some very old VMS code - Changed packfrm()/unpackfrm() to not be depending on uint size (portability fix) - Removed windows specific code to restore cursor position as this causes slowdown on windows and we should not mix read() and pread() calls anyway as this is not thread safe. Updated function comment to reflect this. Changed function that depended on original behavior of my_pwrite() to itself restore the cursor position (one such case). - Added some missing checking of return value of malloc(). - Changed definition of MOD_PAD_CHAR_TO_FULL_LENGTH to avoid 'long' overflow. - Changed type of table_def::m_size from my_size_t to ulong to reflect that m_size is the number of elements in the array, not a string/memory length. - Moved THD::max_row_length() to table.cc (as it's not depending on THD). Inlined max_row_length_blob() into this function. - More function comments - Fixed some compiler warnings when compiled without partitions. - Removed setting of LEX_STRING() arguments in declaration (portability fix). - Some trivial indentation/variable name changes. - Some trivial code simplifications: - Replaced some calls to alloc_root + memcpy to use strmake_root()/strdup_root(). - Changed some calls from memdup() to strmake() (Safety fix) - Simpler loops in client-simple.c BitKeeper/etc/ignore: added libmysqld/ha_ndbcluster_cond.cc --- added debian/defs.mk debian/control client/completion_hash.cc: Remove not needed casts client/my_readline.h: Remove some old types client/mysql.cc: Simplify types client/mysql_upgrade.c: Remove some old types Update call to dirname_part client/mysqladmin.cc: Remove some old types client/mysqlbinlog.cc: Remove some old types Change some buffers to be uchar to avoid casts client/mysqlcheck.c: Remove some old types client/mysqldump.c: Remove some old types Remove some not needed casts Change some string lengths to size_t client/mysqlimport.c: Remove some old types client/mysqlshow.c: Remove some old types client/mysqlslap.c: Remove some old types Remove some not needed casts client/mysqltest.c: Removed some old types Removed some not needed casts Updated hash-get-key function arguments Updated parameters to dirname_part() client/readline.cc: Removed some old types Removed some not needed casts Changed some string lengths to use size_t client/sql_string.cc: Removed some old types dbug/dbug.c: Removed some old types Changed some string lengths to use size_t Changed some prototypes to avoid casts extra/comp_err.c: Removed some old types extra/innochecksum.c: Removed some old types extra/my_print_defaults.c: Removed some old types extra/mysql_waitpid.c: Removed some old types extra/perror.c: Removed some old types extra/replace.c: Removed some old types Updated parameters to dirname_part() extra/resolve_stack_dump.c: Removed some old types extra/resolveip.c: Removed some old types include/config-win.h: Removed some old types include/decimal.h: Changed binary strings to be uchar* instead of char* include/ft_global.h: Removed some old types include/hash.h: Removed some old types include/heap.h: Removed some old types Changed records_under_level to be 'ulong' instead of 'uint' to clarify usage of variable include/keycache.h: Removed some old types include/m_ctype.h: Removed some old types Changed some string lengths to use size_t Changed character length functions to return uint unsigned char -> uchar include/m_string.h: Removed some old types Changed some string lengths to use size_t include/my_alloc.h: Changed some string lengths to use size_t include/my_base.h: Removed some old types include/my_dbug.h: Removed some old types Changed some string lengths to use size_t Changed db_dump() to take uchar * as argument for memory to reduce number of casts in usage include/my_getopt.h: Removed some old types include/my_global.h: Removed old types: my_size_t -> size_t byte -> uchar gptr -> uchar * include/my_list.h: Removed some old types include/my_nosys.h: Removed some old types include/my_pthread.h: Removed some old types include/my_sys.h: Removed some old types Changed MY_FILE_ERROR to be in line with new definitions of my_write()/my_read() Changed some string lengths to use size_t my_malloc() / my_free() now uses void * Updated parameters to dirname_part() & my_uncompress() include/my_tree.h: Removed some old types include/my_trie.h: Removed some old types include/my_user.h: Changed some string lengths to use size_t include/my_vle.h: Removed some old types include/my_xml.h: Removed some old types Changed some string lengths to use size_t include/myisam.h: Removed some old types include/myisammrg.h: Removed some old types include/mysql.h: Removed some old types Changed byte streams to use uchar* instead of char* include/mysql_com.h: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts include/queues.h: Removed some old types include/sql_common.h: Removed some old types include/sslopt-longopts.h: Removed some old types include/violite.h: Removed some old types Changed some string lengths to use size_t libmysql/client_settings.h: Removed some old types libmysql/libmysql.c: Removed some old types libmysql/manager.c: Removed some old types libmysqld/emb_qcache.cc: Removed some old types libmysqld/emb_qcache.h: Removed some old types libmysqld/lib_sql.cc: Removed some old types Removed some not needed casts Changed some buffers to be uchar* to avoid casts true -> TRUE, false -> FALSE mysys/array.c: Removed some old types mysys/charset.c: Changed some string lengths to use size_t mysys/checksum.c: Include zlib to get definition for crc32 Removed some old types mysys/default.c: Removed some old types Changed some string lengths to use size_t mysys/default_modify.c: Changed some string lengths to use size_t Removed some not needed casts mysys/hash.c: Removed some old types Changed some string lengths to use size_t Note: Prototype of hash_key() has changed which may cause problems if client uses hash_init() with a cast for the hash-get-key function. hash_element now takes 'ulong' as the index type (cleanup) mysys/list.c: Removed some old types mysys/mf_cache.c: Changed some string lengths to use size_t mysys/mf_dirname.c: Removed some old types Changed some string lengths to use size_t Added argument to dirname_part() to avoid calculation of length for 'to' mysys/mf_fn_ext.c: Removed some old types Updated parameters to dirname_part() mysys/mf_format.c: Removed some old types Changed some string lengths to use size_t mysys/mf_getdate.c: Removed some old types mysys/mf_iocache.c: Removed some old types Changed some string lengths to use size_t Changed calculation of 'max_length' to be done the same way in all functions mysys/mf_iocache2.c: Removed some old types Changed some string lengths to use size_t Clean up comments Removed not needed indentation mysys/mf_keycache.c: Removed some old types mysys/mf_keycaches.c: Removed some old types mysys/mf_loadpath.c: Removed some old types mysys/mf_pack.c: Removed some old types Changed some string lengths to use size_t Removed some not needed casts Removed very old VMS code Updated parameters to dirname_part() Use result of dirnam_part() to remove call to strcat() mysys/mf_path.c: Removed some old types mysys/mf_radix.c: Removed some old types mysys/mf_same.c: Removed some old types mysys/mf_sort.c: Removed some old types mysys/mf_soundex.c: Removed some old types mysys/mf_strip.c: Removed some old types mysys/mf_tempdir.c: Removed some old types mysys/mf_unixpath.c: Removed some old types mysys/mf_wfile.c: Removed some old types mysys/mulalloc.c: Removed some old types mysys/my_alloc.c: Removed some old types Changed some string lengths to use size_t Use void* as type for allocated memory area Removed some not needed casts Changed argument 'Size' to 'length' according coding guidelines mysys/my_chsize.c: Changed some buffers to be uchar* to avoid casts mysys/my_compress.c: More comments Removed some old types Changed string lengths to use size_t Changed arguments to my_uncompress() to make them easier to understand Changed packfrm()/unpackfrm() to not be depending on uint size (portability fix) Changed type of 'pack_data' argument to packfrm() to avoid casts. mysys/my_conio.c: Changed some string lengths to use size_t mysys/my_create.c: Removed some old types mysys/my_div.c: Removed some old types mysys/my_error.c: Removed some old types mysys/my_fopen.c: Removed some old types mysys/my_fstream.c: Removed some old types Changed some string lengths to use size_t writen -> written mysys/my_getopt.c: Removed some old types mysys/my_getwd.c: Removed some old types More comments mysys/my_init.c: Removed some old types mysys/my_largepage.c: Removed some old types Changed some string lengths to use size_t mysys/my_lib.c: Removed some old types mysys/my_lockmem.c: Removed some old types mysys/my_malloc.c: Removed some old types Changed malloc(), free() and related functions to use void * Changed all functions to use size_t mysys/my_memmem.c: Indentation cleanup mysys/my_once.c: Removed some old types Changed malloc(), free() and related functions to use void * mysys/my_open.c: Removed some old types mysys/my_pread.c: Removed some old types Changed all functions to use size_t Added comment for how my_pread() / my_pwrite() are supposed to work. Removed windows specific code to restore cursor position as this causes slowdown on windows and we should not mix read() and pread() calls anyway as this is not thread safe. (If we ever would really need this, it should be enabled only with a flag argument) mysys/my_quick.c: Removed some old types Changed all functions to use size_t mysys/my_read.c: Removed some old types Changed all functions to use size_t mysys/my_realloc.c: Removed some old types Use void* as type for allocated memory area Changed all functions to use size_t mysys/my_static.c: Removed some old types mysys/my_static.h: Removed some old types mysys/my_vle.c: Removed some old types mysys/my_wincond.c: Removed some old types mysys/my_windac.c: Removed some old types mysys/my_write.c: Removed some old types Changed all functions to use size_t mysys/ptr_cmp.c: Removed some old types Changed all functions to use size_t mysys/queues.c: Removed some old types mysys/safemalloc.c: Removed some old types Changed malloc(), free() and related functions to use void * Changed all functions to use size_t mysys/string.c: Removed some old types Changed all functions to use size_t mysys/testhash.c: Removed some old types mysys/thr_alarm.c: Removed some old types mysys/thr_lock.c: Removed some old types mysys/tree.c: Removed some old types mysys/trie.c: Removed some old types mysys/typelib.c: Removed some old types plugin/daemon_example/daemon_example.cc: Removed some old types regex/reginit.c: Removed some old types server-tools/instance-manager/buffer.cc: Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/buffer.h: Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/commands.cc: Removed some old types Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/instance_map.cc: Removed some old types Changed some string lengths to use size_t Changed buffer to be of type uchar* server-tools/instance-manager/instance_options.cc: Changed buffer to be of type uchar* Replaced alloc_root + strcpy() with strdup_root() server-tools/instance-manager/mysql_connection.cc: Changed buffer to be of type uchar* server-tools/instance-manager/options.cc: Removed some old types server-tools/instance-manager/parse.cc: Changed some string lengths to use size_t server-tools/instance-manager/parse.h: Removed some old types Changed some string lengths to use size_t server-tools/instance-manager/protocol.cc: Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t server-tools/instance-manager/protocol.h: Changed some string lengths to use size_t server-tools/instance-manager/user_map.cc: Removed some old types Changed some string lengths to use size_t sql/derror.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t sql/discover.cc: Changed in readfrm() and writefrom() the type for argument 'frmdata' to uchar** to avoid casts Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts sql/event_data_objects.cc: Removed some old types Added missing casts for alloc() and sprintf() sql/event_db_repository.cc: Changed some buffers to be uchar* to avoid casts Added missing casts for sprintf() sql/event_queue.cc: Removed some old types sql/field.cc: Removed some old types Changed memory buffers to be uchar* Changed some string lengths to use size_t Removed a lot of casts Safety fix in Field_blob::val_decimal() to not access zero pointer sql/field.h: Removed some old types Changed memory buffers to be uchar* (except of store() as this would have caused too many other changes). Changed some string lengths to use size_t Removed some not needed casts Changed val_xxx(xxx, new_ptr) to take const pointers sql/field_conv.cc: Removed some old types Added casts required because memory area pointers are now uchar* sql/filesort.cc: Initalize variable that was used unitialized in error conditions sql/gen_lex_hash.cc: Removed some old types Changed memory buffers to be uchar* Changed some string lengths to use size_t Removed a lot of casts Safety fix in Field_blob::val_decimal() to not access zero pointer sql/gstream.h: Added required cast sql/ha_ndbcluster.cc: Removed some old types Updated hash-get-key function arguments Changed some buffers to be uchar* to avoid casts Added required casts Removed some not needed casts sql/ha_ndbcluster.h: Removed some old types sql/ha_ndbcluster_binlog.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Replaced sql_alloc() + memcpy() + set end 0 with sql_strmake() Changed some string lengths to use size_t Added missing casts for alloc() and sprintf() sql/ha_ndbcluster_binlog.h: Removed some old types sql/ha_ndbcluster_cond.cc: Removed some old types Removed some not needed casts sql/ha_ndbcluster_cond.h: Removed some old types sql/ha_partition.cc: Removed some old types Changed prototype for change_partition() to avoid casts sql/ha_partition.h: Removed some old types sql/handler.cc: Removed some old types Changed some string lengths to use size_t sql/handler.h: Removed some old types Changed some string lengths to use size_t Changed type for 'frmblob' parameter for discover() and ha_discover() to get fewer casts sql/hash_filo.h: Removed some old types Changed all functions to use size_t sql/hostname.cc: Removed some old types sql/item.cc: Removed some old types Changed some string lengths to use size_t Use strmake() instead of memdup() to create a null terminated string. Updated calls to new Field() sql/item.h: Removed some old types Changed malloc(), free() and related functions to use void * Changed some buffers to be uchar* to avoid casts sql/item_cmpfunc.cc: Removed some old types Changed some buffers to be uchar* to avoid casts sql/item_cmpfunc.h: Removed some old types sql/item_create.cc: Removed some old types sql/item_func.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts Added test for failing alloc() in init_result_field() Remove old confusing comment Fixed compiler warning sql/item_func.h: Removed some old types sql/item_row.cc: Removed some old types sql/item_row.h: Removed some old types sql/item_strfunc.cc: Include zlib (needed becasue we call crc32) Removed some old types sql/item_strfunc.h: Removed some old types Changed some types to match new function prototypes sql/item_subselect.cc: Removed some old types sql/item_subselect.h: Removed some old types sql/item_sum.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/item_sum.h: Removed some old types sql/item_timefunc.cc: Removed some old types Changed some string lengths to use size_t sql/item_timefunc.h: Removed some old types sql/item_xmlfunc.cc: Changed some string lengths to use size_t sql/item_xmlfunc.h: Removed some old types sql/key.cc: Removed some old types Removed some not needed casts sql/lock.cc: Removed some old types Added some cast to my_multi_malloc() arguments for safety sql/log.cc: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts Changed usage of pwrite() to not assume it holds the cursor position for the file Made usage of my_read() safer sql/log_event.cc: Removed some old types Added checking of return value of malloc() in pack_info() Changed some buffers to be uchar* to avoid casts Removed some 'const' to avoid casts Added missing casts for alloc() and sprintf() Added required casts Removed some not needed casts Added some cast to my_multi_malloc() arguments for safety sql/log_event.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/log_event_old.cc: Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/log_event_old.h: Changed some buffers to be uchar* to avoid casts sql/mf_iocache.cc: Removed some old types sql/my_decimal.cc: Changed memory area to use uchar* sql/my_decimal.h: Changed memory area to use uchar* sql/mysql_priv.h: Removed some old types Changed malloc(), free() and related functions to use void * Changed some string lengths to use size_t Changed definition of MOD_PAD_CHAR_TO_FULL_LENGTH to avoid long overflow Changed some buffers to be uchar* to avoid casts sql/mysqld.cc: Removed some old types sql/net_serv.cc: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts Ensure that vio_read()/vio_write() return values are stored in a size_t variable Removed some not needed casts sql/opt_range.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/opt_range.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/opt_sum.cc: Removed some old types Removed some not needed casts sql/parse_file.cc: Removed some old types Changed some string lengths to use size_t Changed alloc_root + memcpy + set end 0 -> strmake_root() sql/parse_file.h: Removed some old types sql/partition_info.cc: Removed some old types Added missing casts for alloc() Changed some buffers to be uchar* to avoid casts sql/partition_info.h: Changed some buffers to be uchar* to avoid casts sql/protocol.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/protocol.h: Removed some old types Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t sql/records.cc: Removed some old types sql/repl_failsafe.cc: Removed some old types Changed some string lengths to use size_t Added required casts sql/rpl_filter.cc: Removed some old types Updated hash-get-key function arguments Changed some string lengths to use size_t sql/rpl_filter.h: Changed some string lengths to use size_t sql/rpl_injector.h: Removed some old types sql/rpl_record.cc: Removed some old types Removed some not needed casts Changed some buffers to be uchar* to avoid casts sql/rpl_record.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/rpl_record_old.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/rpl_record_old.h: Removed some old types Changed some buffers to be uchar* to avoid cast sql/rpl_rli.cc: Removed some old types sql/rpl_tblmap.cc: Removed some old types sql/rpl_tblmap.h: Removed some old types sql/rpl_utility.cc: Removed some old types sql/rpl_utility.h: Removed some old types Changed type of m_size from my_size_t to ulong to reflect that m_size is the number of elements in the array, not a string/memory length sql/set_var.cc: Removed some old types Updated parameters to dirname_part() sql/set_var.h: Removed some old types sql/slave.cc: Removed some old types Changed some string lengths to use size_t sql/slave.h: Removed some old types sql/sp.cc: Removed some old types Added missing casts for printf() sql/sp.h: Removed some old types Updated hash-get-key function arguments sql/sp_cache.cc: Removed some old types Added missing casts for printf() Updated hash-get-key function arguments sql/sp_head.cc: Removed some old types Added missing casts for alloc() and printf() Added required casts Updated hash-get-key function arguments sql/sp_head.h: Removed some old types sql/sp_pcontext.cc: Removed some old types sql/sp_pcontext.h: Removed some old types sql/sql_acl.cc: Removed some old types Changed some string lengths to use size_t Changed some buffers to be uchar* to avoid casts Removed some not needed casts Added required casts sql/sql_analyse.cc: Changed some buffers to be uchar* to avoid casts sql/sql_analyse.h: Changed some buffers to be uchar* to avoid casts sql/sql_array.h: Removed some old types sql/sql_base.cc: Removed some old types Updated hash-get-key function arguments sql/sql_binlog.cc: Removed some old types Added missing casts for printf() sql/sql_cache.cc: Removed some old types Updated hash-get-key function arguments Removed some not needed casts Changed some string lengths to use size_t sql/sql_cache.h: Removed some old types Removed reference to not existing function cache_key() Updated hash-get-key function arguments sql/sql_class.cc: Removed some old types Updated hash-get-key function arguments Added missing casts for alloc() Updated hash-get-key function arguments Moved THD::max_row_length() to table.cc (as it's not depending on THD) Removed some not needed casts sql/sql_class.h: Removed some old types Changed malloc(), free() and related functions to use void * Removed some not needed casts Changed some string lengths to use size_t Moved max_row_length and max_row_length_blob() to table.cc, as they are not depending on THD sql/sql_connect.cc: Removed some old types Added required casts sql/sql_db.cc: Removed some old types Removed some not needed casts Added some cast to my_multi_malloc() arguments for safety Added missing casts for alloc() sql/sql_delete.cc: Removed some old types sql/sql_handler.cc: Removed some old types Updated hash-get-key function arguments Added some cast to my_multi_malloc() arguments for safety sql/sql_help.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/sql_insert.cc: Removed some old types Added missing casts for alloc() and printf() sql/sql_lex.cc: Removed some old types sql/sql_lex.h: Removed some old types Removed some not needed casts sql/sql_list.h: Removed some old types Removed some not needed casts sql/sql_load.cc: Removed some old types Removed compiler warning sql/sql_manager.cc: Removed some old types sql/sql_map.cc: Removed some old types sql/sql_map.h: Removed some old types sql/sql_olap.cc: Removed some old types sql/sql_parse.cc: Removed some old types Trivial move of code lines to make things more readable Changed some string lengths to use size_t Added missing casts for alloc() sql/sql_partition.cc: Removed some old types Removed compiler warnings about not used functions Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/sql_partition.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/sql_plugin.cc: Removed some old types Added missing casts for alloc() Updated hash-get-key function arguments sql/sql_prepare.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Added missing casts for alloc() and printf() sql-common/client.c: Removed some old types Changed some memory areas to use uchar* sql-common/my_user.c: Changed some string lengths to use size_t sql-common/pack.c: Changed some buffers to be uchar* to avoid casts sql/sql_repl.cc: Added required casts Changed some buffers to be uchar* to avoid casts Changed some string lengths to use size_t sql/sql_select.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some old types sql/sql_select.h: Removed some old types Changed some buffers to be uchar* to avoid casts sql/sql_servers.cc: Removed some old types Updated hash-get-key function arguments sql/sql_show.cc: Removed some old types Added missing casts for alloc() Removed some not needed casts sql/sql_string.cc: Removed some old types Added required casts sql/sql_table.cc: Removed some old types Removed compiler warning about not used variable Changed some buffers to be uchar* to avoid casts Removed some not needed casts sql/sql_test.cc: Removed some old types sql/sql_trigger.cc: Removed some old types Added missing casts for alloc() sql/sql_udf.cc: Removed some old types Updated hash-get-key function arguments sql/sql_union.cc: Removed some old types sql/sql_update.cc: Removed some old types Removed some not needed casts sql/sql_view.cc: Removed some old types sql/sql_yacc.yy: Removed some old types Changed some string lengths to use size_t Added missing casts for alloc() sql/stacktrace.c: Removed some old types sql/stacktrace.h: Removed some old types sql/structs.h: Removed some old types sql/table.cc: Removed some old types Updated hash-get-key function arguments Changed some buffers to be uchar* to avoid casts Removed setting of LEX_STRING() arguments in declaration Added required casts More function comments Moved max_row_length() here from sql_class.cc/sql_class.h sql/table.h: Removed some old types Changed some string lengths to use size_t sql/thr_malloc.cc: Use void* as type for allocated memory area Changed all functions to use size_t sql/tzfile.h: Changed some buffers to be uchar* to avoid casts sql/tztime.cc: Changed some buffers to be uchar* to avoid casts Updated hash-get-key function arguments Added missing casts for alloc() Removed some not needed casts sql/uniques.cc: Removed some old types Removed some not needed casts sql/unireg.cc: Removed some old types Changed some buffers to be uchar* to avoid casts Removed some not needed casts Added missing casts for alloc() storage/archive/archive_reader.c: Removed some old types storage/archive/azio.c: Removed some old types Removed some not needed casts storage/archive/ha_archive.cc: Removed some old types Changed type for 'frmblob' in archive_discover() to match handler Updated hash-get-key function arguments Removed some not needed casts storage/archive/ha_archive.h: Removed some old types storage/blackhole/ha_blackhole.cc: Removed some old types storage/blackhole/ha_blackhole.h: Removed some old types storage/csv/ha_tina.cc: Removed some old types Updated hash-get-key function arguments Changed some buffers to be uchar* to avoid casts storage/csv/ha_tina.h: Removed some old types Removed some not needed casts storage/csv/transparent_file.cc: Removed some old types Changed type of 'bytes_read' to be able to detect read errors Fixed indentation storage/csv/transparent_file.h: Removed some old types storage/example/ha_example.cc: Removed some old types Updated hash-get-key function arguments storage/example/ha_example.h: Removed some old types storage/federated/ha_federated.cc: Removed some old types Updated hash-get-key function arguments Removed some not needed casts storage/federated/ha_federated.h: Removed some old types storage/heap/_check.c: Changed some buffers to be uchar* to avoid casts storage/heap/_rectest.c: Removed some old types storage/heap/ha_heap.cc: Removed some old types storage/heap/ha_heap.h: Removed some old types storage/heap/heapdef.h: Removed some old types storage/heap/hp_block.c: Removed some old types Changed some string lengths to use size_t storage/heap/hp_clear.c: Removed some old types storage/heap/hp_close.c: Removed some old types storage/heap/hp_create.c: Removed some old types storage/heap/hp_delete.c: Removed some old types storage/heap/hp_hash.c: Removed some old types storage/heap/hp_info.c: Removed some old types storage/heap/hp_open.c: Removed some old types storage/heap/hp_rfirst.c: Removed some old types storage/heap/hp_rkey.c: Removed some old types storage/heap/hp_rlast.c: Removed some old types storage/heap/hp_rnext.c: Removed some old types storage/heap/hp_rprev.c: Removed some old types storage/heap/hp_rrnd.c: Removed some old types storage/heap/hp_rsame.c: Removed some old types storage/heap/hp_scan.c: Removed some old types storage/heap/hp_test1.c: Removed some old types storage/heap/hp_test2.c: Removed some old types storage/heap/hp_update.c: Removed some old types storage/heap/hp_write.c: Removed some old types Changed some string lengths to use size_t storage/innobase/handler/ha_innodb.cc: Removed some old types Updated hash-get-key function arguments Added missing casts for alloc() and printf() Removed some not needed casts storage/innobase/handler/ha_innodb.h: Removed some old types storage/myisam/ft_boolean_search.c: Removed some old types storage/myisam/ft_nlq_search.c: Removed some old types storage/myisam/ft_parser.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/ft_static.c: Removed some old types storage/myisam/ft_stopwords.c: Removed some old types storage/myisam/ft_update.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/ftdefs.h: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/fulltext.h: Removed some old types storage/myisam/ha_myisam.cc: Removed some old types storage/myisam/ha_myisam.h: Removed some old types storage/myisam/mi_cache.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/mi_check.c: Removed some old types storage/myisam/mi_checksum.c: Removed some old types storage/myisam/mi_close.c: Removed some old types storage/myisam/mi_create.c: Removed some old types storage/myisam/mi_delete.c: Removed some old types storage/myisam/mi_delete_all.c: Removed some old types storage/myisam/mi_dynrec.c: Removed some old types storage/myisam/mi_extra.c: Removed some old types storage/myisam/mi_key.c: Removed some old types storage/myisam/mi_locking.c: Removed some old types storage/myisam/mi_log.c: Removed some old types storage/myisam/mi_open.c: Removed some old types Removed some not needed casts Check argument of my_write()/my_pwrite() in functions returning int Added casting of string lengths to size_t storage/myisam/mi_packrec.c: Removed some old types Changed some buffers to be uchar* to avoid casts storage/myisam/mi_page.c: Removed some old types storage/myisam/mi_preload.c: Removed some old types storage/myisam/mi_range.c: Removed some old types storage/myisam/mi_rfirst.c: Removed some old types storage/myisam/mi_rkey.c: Removed some old types storage/myisam/mi_rlast.c: Removed some old types storage/myisam/mi_rnext.c: Removed some old types storage/myisam/mi_rnext_same.c: Removed some old types storage/myisam/mi_rprev.c: Removed some old types storage/myisam/mi_rrnd.c: Removed some old types storage/myisam/mi_rsame.c: Removed some old types storage/myisam/mi_rsamepos.c: Removed some old types storage/myisam/mi_scan.c: Removed some old types storage/myisam/mi_search.c: Removed some old types storage/myisam/mi_static.c: Removed some old types storage/myisam/mi_statrec.c: Removed some old types storage/myisam/mi_test1.c: Removed some old types storage/myisam/mi_test2.c: Removed some old types storage/myisam/mi_test3.c: Removed some old types storage/myisam/mi_unique.c: Removed some old types storage/myisam/mi_update.c: Removed some old types storage/myisam/mi_write.c: Removed some old types storage/myisam/myisam_ftdump.c: Removed some old types storage/myisam/myisamchk.c: Removed some old types storage/myisam/myisamdef.h: Removed some old types storage/myisam/myisamlog.c: Removed some old types Indentation fix storage/myisam/myisampack.c: Removed some old types storage/myisam/rt_index.c: Removed some old types storage/myisam/rt_split.c: Removed some old types storage/myisam/sort.c: Removed some old types storage/myisam/sp_defs.h: Removed some old types storage/myisam/sp_key.c: Removed some old types storage/myisammrg/ha_myisammrg.cc: Removed some old types storage/myisammrg/ha_myisammrg.h: Removed some old types storage/myisammrg/myrg_close.c: Removed some old types storage/myisammrg/myrg_def.h: Removed some old types storage/myisammrg/myrg_delete.c: Removed some old types storage/myisammrg/myrg_open.c: Removed some old types Updated parameters to dirname_part() storage/myisammrg/myrg_queue.c: Removed some old types storage/myisammrg/myrg_rfirst.c: Removed some old types storage/myisammrg/myrg_rkey.c: Removed some old types storage/myisammrg/myrg_rlast.c: Removed some old types storage/myisammrg/myrg_rnext.c: Removed some old types storage/myisammrg/myrg_rnext_same.c: Removed some old types storage/myisammrg/myrg_rprev.c: Removed some old types storage/myisammrg/myrg_rrnd.c: Removed some old types storage/myisammrg/myrg_rsame.c: Removed some old types storage/myisammrg/myrg_update.c: Removed some old types storage/myisammrg/myrg_write.c: Removed some old types storage/ndb/include/util/ndb_opts.h: Removed some old types storage/ndb/src/cw/cpcd/main.cpp: Removed some old types storage/ndb/src/kernel/vm/Configuration.cpp: Removed some old types storage/ndb/src/mgmclient/main.cpp: Removed some old types storage/ndb/src/mgmsrv/InitConfigFileParser.cpp: Removed some old types Removed old disabled code storage/ndb/src/mgmsrv/main.cpp: Removed some old types storage/ndb/src/ndbapi/NdbBlob.cpp: Removed some old types storage/ndb/src/ndbapi/NdbOperationDefine.cpp: Removed not used variable storage/ndb/src/ndbapi/NdbOperationInt.cpp: Added required casts storage/ndb/src/ndbapi/NdbScanOperation.cpp: Added required casts storage/ndb/tools/delete_all.cpp: Removed some old types storage/ndb/tools/desc.cpp: Removed some old types storage/ndb/tools/drop_index.cpp: Removed some old types storage/ndb/tools/drop_tab.cpp: Removed some old types storage/ndb/tools/listTables.cpp: Removed some old types storage/ndb/tools/ndb_config.cpp: Removed some old types storage/ndb/tools/restore/consumer_restore.cpp: Changed some buffers to be uchar* to avoid casts with new defintion of packfrm() storage/ndb/tools/restore/restore_main.cpp: Removed some old types storage/ndb/tools/select_all.cpp: Removed some old types storage/ndb/tools/select_count.cpp: Removed some old types storage/ndb/tools/waiter.cpp: Removed some old types strings/bchange.c: Changed function to use uchar * and size_t strings/bcmp.c: Changed function to use uchar * and size_t strings/bmove512.c: Changed function to use uchar * and size_t strings/bmove_upp.c: Changed function to use uchar * and size_t strings/ctype-big5.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-bin.c: Changed functions to use size_t strings/ctype-cp932.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-czech.c: Fixed indentation Changed functions to use size_t strings/ctype-euc_kr.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-eucjpms.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-gb2312.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-gbk.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-latin1.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-mb.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-simple.c: Changed functions to use size_t Simpler loops for caseup/casedown unsigned int -> uint unsigned char -> uchar strings/ctype-sjis.c: Changed functions to use size_t Changed character length functions to return uint strings/ctype-tis620.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-uca.c: Changed functions to use size_t unsigned char -> uchar strings/ctype-ucs2.c: Moved inclusion of stdarg.h to other includes usigned char -> uchar Changed functions to use size_t Changed character length functions to return uint strings/ctype-ujis.c: Changed functions to use size_t Changed character length functions to return uint unsigned char -> uchar strings/ctype-utf8.c: Changed functions to use size_t unsigned char -> uchar Indentation fixes strings/ctype-win1250ch.c: Indentation fixes Changed functions to use size_t strings/ctype.c: Changed functions to use size_t strings/decimal.c: Changed type for memory argument to uchar * strings/do_ctype.c: Indentation fixes strings/my_strtoll10.c: unsigned char -> uchar strings/my_vsnprintf.c: Changed functions to use size_t strings/r_strinstr.c: Removed some old types Changed functions to use size_t strings/str_test.c: Removed some old types strings/strappend.c: Changed functions to use size_t strings/strcont.c: Removed some old types strings/strfill.c: Removed some old types strings/strinstr.c: Changed functions to use size_t strings/strlen.c: Changed functions to use size_t strings/strmake.c: Changed functions to use size_t strings/strnlen.c: Changed functions to use size_t strings/strnmov.c: Changed functions to use size_t strings/strto.c: unsigned char -> uchar strings/strtod.c: Changed functions to use size_t strings/strxnmov.c: Changed functions to use size_t strings/xml.c: Changed functions to use size_t Indentation fixes tests/mysql_client_test.c: Removed some old types tests/thread_test.c: Removed some old types vio/test-ssl.c: Removed some old types vio/test-sslclient.c: Removed some old types vio/test-sslserver.c: Removed some old types vio/vio.c: Removed some old types vio/vio_priv.h: Removed some old types Changed vio_read()/vio_write() to work with size_t vio/viosocket.c: Changed vio_read()/vio_write() to work with size_t Indentation fixes vio/viossl.c: Changed vio_read()/vio_write() to work with size_t Indentation fixes vio/viosslfactories.c: Removed some old types vio/viotest-ssl.c: Removed some old types win/README: More explanations
2007-05-10 11:59:39 +02:00
DBUG_PRINT("enter",("thd: 0x%lx name: %*s", (long) thd,
(int) name.length, name.str));
WL#3337 (Event scheduler new architecture) This patch introduces specialized Event data objects Event_basic as parent. Event_queue_element used for queue storage Event_timed used for SHOW EVENTS/ I_S.EVENTS / SHOW CREATE EVENT Event_job_data using during execution. Methods were moved out of Event_timed to other classes. This patch also introduces Events::LOCK_event_metadata. This patch gives new implementation of Events::dump_internal_status(). Now both the Event_scheduler and Event_queue return information during their ::dump_internal_status(). Shortened a bit the runtime for executing events test cases. mysql-test/r/events.result: update results mysql-test/r/events_bugs.result: update results mysql-test/r/events_logs_tests.result: update results mysql-test/r/events_scheduling.result: update results mysql-test/t/events.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_bugs.test: update test make --sleep more appropriate . saving some time could mean failure on loaded boxes though :( add tests for previously uncovered branches. mysql-test/t/events_logs_tests.test: make the test shorter by time mysql-test/t/events_scheduling.test: when selecting always use ORDER BY mysql-test/t/events_stress.test: sleep 2.5secs for shorter stress test sql/event_data_objects.cc: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_data_objects.h: Event_timed is no more used during execution. Event_timed is no more used during in the memory queue. Event_timed is only used for SHOW CREATE EVENT/ I_S.EVENTS/ SHOW EVENTS Event_basic is the parent of almost all Event data objects. Event_basic -> Event_queue_element (used for the memory queue) -> Event_timed Event_basic -> Event_job_data (the object used for execution) Sql_alloc -> Event_parse_data (used during parsing) sql/event_db_repository.cc: Cosmetics. load_named_event now uses Event_basic, for polymorphism find_event uses Event_basic, to be polymorphic. use Field **fields= table->field and then index fields[...] Add documentation. Fix documentation. sql/event_db_repository.h: Event_db_repository depends only on Event_basic's interface sql/event_queue.cc: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_queue.h: Cosmetics. Don't use Event_timed for the queue and giving back object for execution. Event_queue_element is for the queue, Event_job_data is for execution. Add Event_queue::dump_internal_status() for SHOW SCHEDULER STATUS command sql/event_scheduler_ng.cc: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. Make the scheduler thread unkillable (thd->command= COM_DAEMON). Add a lot of documentation. sql/event_scheduler_ng.h: Add back Event_scheduler::cond_wait() Add back Event_scheduler::dump_internal_status() Using Event_job_data for execution. sql/events.cc: Documentation Add LOCK_event_metadata sql/events.h: Change the signature of Events::drop_event() not to use sp_name but LEX_STRING sql/share/errmsg.txt: Fix error message sql/sql_parse.cc: Events::drop_event() has new signature
2006-07-10 13:44:43 +02:00
event_table.init_one_table("mysql", 5, "event", 5, "event", TL_READ);
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
/* Reset sql_mode during data dictionary operations. */
thd->variables.sql_mode= 0;
/*
We don't use open_event_table() here to make sure that SHOW
CREATE EVENT works properly in transactional context, and
does not release transactional metadata locks when the
event table is closed.
*/
if (!(ret= open_system_tables_for_read(thd, &event_table, &open_tables_backup)))
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
{
2011-05-04 15:22:38 +02:00
if (table_intact.check(event_table.table, &event_table_def))
{
close_system_tables(thd, &open_tables_backup);
my_error(ER_EVENT_OPEN_TABLE_FAILED, MYF(0));
DBUG_RETURN(TRUE);
}
if ((ret= find_named_event(dbname, name, event_table.table)))
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
my_error(ER_EVENT_DOES_NOT_EXIST, MYF(0), name.str);
else if ((ret= etn->load_from_row(thd, event_table.table)))
fixes for test failures and small collateral changes mysql-test/lib/My/Test.pm: somehow with "print" we get truncated writes sometimes mysql-test/suite/perfschema/r/digest_table_full.result: md5 hashes of statement digests differ, because yacc token codes are different in mariadb mysql-test/suite/perfschema/r/dml_handler.result: host table is not ported over yet mysql-test/suite/perfschema/r/information_schema.result: host table is not ported over yet mysql-test/suite/perfschema/r/nesting.result: this differs, because we don't rewrite general log queries, and multi-statement packets are logged as a one entry. this result file is identical to what mysql-5.6.5 produces with the --log-raw option. mysql-test/suite/perfschema/r/relaylog.result: MariaDB modifies the binlog index file directly, while MySQL 5.6 has a feature "crash-safe binlog index" and modifies a special "crash-safe" shadow copy of the index file and then moves it over. That's why this test shows "NONE" index file writes in MySQL and "MANY" in MariaDB. mysql-test/suite/perfschema/r/server_init.result: MariaDB initializes the "manager" resources from the "manager" thread, and starts this thread only when --flush-time is not 0. MySQL 5.6 initializes "manager" resources unconditionally on server startup. mysql-test/suite/perfschema/r/stage_mdl_global.result: this differs, because MariaDB disables query cache when query_cache_size=0. MySQL does not do that, and this causes useless mutex locks and waits. mysql-test/suite/perfschema/r/statement_digest.result: md5 hashes of statement digests differ, because yacc token codes are different in mariadb mysql-test/suite/perfschema/r/statement_digest_consumers.result: md5 hashes of statement digests differ, because yacc token codes are different in mariadb mysql-test/suite/perfschema/r/statement_digest_long_query.result: md5 hashes of statement digests differ, because yacc token codes are different in mariadb mysql-test/suite/rpl/r/rpl_mixed_drop_create_temp_table.result: will be updated to match 5.6 when alfranio.correia@oracle.com-20110512172919-c1b5kmum4h52g0ni and anders.song@greatopensource.com-20110105052107-zoab0bsf5a6xxk2y are merged mysql-test/suite/rpl/r/rpl_non_direct_mixed_mixing_engines.result: will be updated to match 5.6 when anders.song@greatopensource.com-20110105052107-zoab0bsf5a6xxk2y is merged
2012-09-27 20:09:46 +02:00
my_error(ER_CANNOT_LOAD_FROM_TABLE_V2, MYF(0), "mysql", "event");
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
close_system_tables(thd, &open_tables_backup);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
}
Bug#32633 Can not create any routine if SQL_MODE=no_engine_substitution The problem is that one can not create a stored routine if sql_mode contains NO_ENGINE_SUBSTITUTION or PAD_CHAR_TO_FULL_LENGTH. Also when a event is created, the mode is silently lost if sql_mode contains one of the aforementioned. This was happening because the table definitions which stored sql_mode values weren't being updated to accept new values of sql_mode. The solution is to update, in a backwards compatible manner, the various table definitions (columns) that store the sql_mode value to take into account the new possible values. One incompatible change is that if a event that is being created can't be stored to the mysql.event table, an error will be raised. The tests case also ensure that new SQL modes will be added to the mysql.proc and mysql.event tables, otherwise the tests will fail. mysql-test/r/events_bugs.result: Add test case result for Bug#32633 mysql-test/r/information_schema.result: Update the sql_mode column definition. mysql-test/r/sp.result: Add test case result for Bug#32633 mysql-test/r/system_mysql_db.result: Update the sql_mode column definition. mysql-test/t/events_bugs.test: Add test case for Bug#32633 mysql-test/t/sp.test: Add test case for Bug#32633 mysql-test/t/system_mysql_db_fix50117.test: Update the sql_mode column definition. scripts/mysql_system_tables.sql: Update the sql_mode column definition. scripts/mysql_system_tables_fix.sql: Update the sql_mode column definition. sql/event_db_repository.cc: Reset and restore SQL modes when storing and loading a event from the data dictionary. Also throw out a error if a store fails. sql/mysqld.cc: Add warning to avoid this problem in the future. sql-common/my_user.c: Truncate length if user name or host name does not fit in the buffer. sql/sp.cc: SQL mode of the thread must not effect data dictionary operations.
2008-02-07 11:47:39 +01:00
thd->variables.sql_mode= saved_mode;
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
DBUG_RETURN(ret);
}
/**
Update the event record in mysql.event table with a changed status
and/or last execution time.
@pre The thread handle does not have open tables.
*/
bool
Event_db_repository::
update_timing_fields_for_event(THD *thd,
LEX_STRING event_db_name,
LEX_STRING event_name,
my_time_t last_executed,
ulonglong status)
{
TABLE *table= NULL;
Field **fields;
int ret= 1;
enum_binlog_format save_binlog_format;
Patch that refactors global read lock implementation and fixes bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK" and bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'". The first bug manifested itself as a deadlock which occurred when a connection, which had some table open through HANDLER statement, tried to update some data through DML statement while another connection tried to execute FLUSH TABLES WITH READ LOCK concurrently. What happened was that FTWRL in the second connection managed to perform first step of GRL acquisition and thus blocked all upcoming DML. After that it started to wait for table open through HANDLER statement to be flushed. When the first connection tried to execute DML it has started to wait for GRL/the second connection creating deadlock. The second bug manifested itself as starvation of FLUSH TABLES WITH READ LOCK statements in cases when there was a constant stream of concurrent DML statements (in two or more connections). This has happened because requests for protection against GRL which were acquired by DML statements were ignoring presence of pending GRL and thus the latter was starved. This patch solves both these problems by re-implementing GRL using metadata locks. Similar to the old implementation acquisition of GRL in new implementation is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. The first problem is solved because waits for GRL become visible to deadlock detector in metadata locking subsystem and thus deadlocks like one in the first bug become impossible. The second problem is solved because global S locks which are used for GRL implementation are given preference over IX locks which are acquired by concurrent DML (and we can switch to fair scheduling in future if needed). Important change: FTWRL/GRL no longer blocks DML and DDL on temporary tables. Before this patch behavior was not consistent in this respect: in some cases DML/DDL statements on temporary tables were blocked while in others they were not. Since the main use cases for FTWRL are various forms of backups and temporary tables are not preserved during backups we have opted for consistently allowing DML/DDL on temporary tables during FTWRL/GRL. Important change: This patch changes thread state names which are used when DML/DDL of FTWRL is waiting for global read lock. It is now either "Waiting for global read lock" or "Waiting for commit lock" depending on the stage on which FTWRL is. Incompatible change: To solve deadlock in events code which was exposed by this patch we have to replace LOCK_event_metadata mutex with metadata locks on events. As result we have to prohibit DDL on events under LOCK TABLES. This patch also adds extensive test coverage for interaction of DML/DDL and FTWRL. Performance of new and old global read lock implementations in sysbench tests were compared. There were no significant difference between new and old implementations. mysql-test/include/check_ftwrl_compatible.inc: Added helper script which allows to check that a statement is compatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/check_ftwrl_incompatible.inc: Added helper script which allows to check that a statement is incompatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/handler.inc: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/include/wait_show_condition.inc: Fixed small error in the timeout message. The correct name of variable used as parameter for this script is "$condition" and not "$wait_condition". mysql-test/r/delayed.result: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/r/events_2.result: Updated test results after prohibiting event DDL operations under LOCK TABLES. mysql-test/r/flush.result: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/r/flush_read_lock.result: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/r/flush_read_lock_kill.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/r/handler_innodb.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/handler_myisam.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/mdl_sync.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. mysql-test/suite/perfschema/r/dml_setup_instruments.result: Updated test results after removing global COND_global_read_lock condition variable. mysql-test/suite/perfschema/r/func_file_io.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/func_mutex.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/global_read_lock.result: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/r/server_init.result: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/perfschema/t/func_file_io.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/func_mutex.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/global_read_lock.test: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/t/server_init.test: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/rpl/r/rpl_tmp_table_and_DDL.result: Updated test results after prohibiting event DDL under LOCK TABLES. mysql-test/t/delayed.test: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/t/events_2.test: Updated test case after prohibiting event DDL operations under LOCK TABLES. mysql-test/t/flush.test: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/t/flush_block_commit.test: Adjusted test case after changing thread state name which is used when COMMIT waits for FLUSH TABLES WITH READ LOCK from "Waiting for release of readlock" to "Waiting for commit lock". mysql-test/t/flush_block_commit_notembedded.test: Adjusted test case after changing thread state name which is used when DML waits for FLUSH TABLES WITH READ LOCK. Now we use "Waiting for global read lock" in this case. mysql-test/t/flush_read_lock.test: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/t/flush_read_lock_kill-master.opt: We no longer need to use make_global_read_lock_block_commit_loop debug tag in this test. Instead we rely on an appropriate debug_sync point in MDL code. mysql-test/t/flush_read_lock_kill.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/t/lock_multi.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". mysql-test/t/mdl_sync.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. Updated thread state names which are used when DDL waits for FTWRL. mysql-test/t/trigger_notembedded.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". sql/event_data_objects.cc: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_data_objects.h: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_db_repository.cc: - Changed Event_db_repository methods to not release all metadata locks once they are done updating mysql.events table. This allows to keep metadata lock protecting against GRL and lock protecting particular event around until corresponding DDL statement is written to the binary log. - Removed logic for conditional update of "status" and "last_executed" fields from update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" is too much hassle. sql/event_db_repository.h: Removed logic for conditional update of "status" and "last_executed" fields from Event_db_repository:: update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" field is too much hassle. sql/event_queue.cc: Changed event scheduler code not to update mysql.events table while holding Event_queue::LOCK_event_queue mutex. Doing so led to a deadlock with a new GRL implementation. This deadlock didn't occur with old implementation due to fact that code acquiring protection against GRL ignored pending GRL requests (which lead to GRL starvation). One of goals of new implementation is to disallow GRL starvation and so we have to solve problem with this deadlock in a different way. sql/events.cc: Changed methods of Events class to acquire protection against GRL while perfoming DDL statement and keep it until statement is written to the binary log. Unfortunately this step together with new GRL implementation exposed deadlock involving Events::LOCK_event_metadata and GRL. To solve it Events::LOCK_event_metadata mutex was replaced with a metadata lock on event. As a side-effect events DDL has to be prohibited under LOCK TABLES even in cases when mysql.events table was explicitly locked for write. sql/events.h: Replaced Events::LOCK_event_metadata mutex with a metadata lock on event. sql/ha_ndbcluster.cc: Updated code after replacing custom global read lock implementation with one based on MDL. Since MDL subsystem should now be able to detect deadlocks involving metadata locks and GRL there is no need for special handling of active GRL. sql/handler.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. sql/lock.cc: Replaced custom implementation of global read lock with one based on metadata locks. This step allows to expose wait for GRL to deadlock detector of MDL subsystem and thus succesfully resolve deadlocks similar to one behind bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". It also solves problem with GRL starvation described in bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'" since metadata locks used by GRL give preference to FTWRL statement instead of DML statements (if needed in future this can be changed to fair scheduling). Similar to old implementation of acquisition of GRL is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. To support this change: - Global_read_lock::lock/unlock_global_read_lock and make_global_read_lock_block_commit methods were changed accordingly. - Global_read_lock::wait_if_global_read_lock() and start_waiting_global_read_lock() methods were dropped. It is now responsibility of code acquiring metadata locks opening tables to acquire protection against GRL by explicitly taking global IX lock with statement duration. - Global variables, mutex and condition variable used by old implementation was removed. - lock_routine_name() was changed to use statement duration for its global IX lock. It was also renamed to lock_object_name() as it now also used to take metadata locks on events. - Global_read_lock::set_explicit_lock_duration() was added which allows not to release locks used for GRL when leaving prelocked mode. sql/lock.h: - Renamed lock_routine_name() to lock_object_name() and changed its signature to allow its usage for events. - Removed broadcast_refresh() function. It is no longer needed with new GRL implementation. sql/log_event.cc: Release metadata locks with statement duration at the end of processing legacy event for LOAD DATA. This ensures that replication thread processing such event properly releases its protection against global read lock. sql/mdl.cc: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Changed thread state name for GLOBAL namespace to "Waiting for global read lock". Optimized MDL_map::find_or_insert() method to avoid taking m_mutex mutex when looking up MDL_lock objects for GLOBAL or COMMIT namespaces. We keep pre-created MDL_lock objects for these namespaces around and simply return pointers to these global objects when needed. Changed MDL_lock/MDL_scoped_lock to properly handle notification of insert delayed handler threads when FTWRL takes global S lock. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mdl.h: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mysqld.cc: Removed global mutex and condition variables which were used by old implementation of GRL. Also we no longer need to initialize Events::LOCK_event_metadata mutex as it was replaced with metadata locks on events. sql/mysqld.h: Removed global variable, mutex and condition variables which were used by old implementation of GRL. sql/rpl_rli.cc: When slave thread closes tables which were open for handling of RBR events ensure that it releases global IX lock which was acquired as protection against GRL. sql/sp.cc: Adjusted code to the new signature of lock_object/routine_name(), to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sp_head.cc: Ensure that statements in stored procedures release statement metadata locks and thus release their protectiong against GRL in proper moment in time. Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_admin.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_base.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. Code doing this also responsible for checking that current connection has no active GRL by calling an Global_read_lock::can_acquire_protection() method. Changed code in open_table() and lock_table_names() accordingly. Note that as result of this change DDL and DML on temporary tables is always compatible with GRL (before it was incompatible in some cases and compatible in other cases). - To speed-up code acquiring protection against GRL introduced m_has_protection_against_grl member in Open_table_context class. It indicates that protection was already acquired sometime during open_tables() execution and new attempts can be skipped. - Thanks to new GRL implementation calls to broadcast_refresh() became unnecessary and were removed. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_base.h: Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. Also introduced Open_table_context::m_has_protection_against_grl member which allows to avoid acquiring protection against GRL while opening tables if such protection was already acquired. sql/sql_class.cc: Changed THD::leave_locked_tables_mode() after transactional sentinel for metadata locks was obsoleted by introduction of locks with explicit duration. sql/sql_class.h: - Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. - Changed Global_read_lock class according to changes in global read lock implementation: * wait_if_global_read_lock and start_waiting_global_read_lock are now gone. Instead code needing protection against GRL has to acquire global IX metadata lock with statement duration itself. To help it new can_acquire_protection() was introduced. Also as result of the above change m_protection_count member is gone too. * Added m_mdl_blocks_commits_lock member to store metadata lock blocking commits. * Adjusted code to the fact that concept of transactional sentinel was obsoleted by concept of lock duration. - Removed CF_PROTECT_AGAINST_GRL flag as it is no longer necessary. New GRL implementation acquires protection against global read lock automagically when statement acquires metadata locks on tables or other objects it is going to change. sql/sql_db.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_handler.cc: Removed call to broadcast_refresh() function. It is no longer needed with new GRL implementation. Adjusted code after introducing duration concept for metadata locks. Particularly to the fact transactional sentinel was replaced with explicit duration. sql/sql_handler.h: Renamed mysql_ha_move_tickets_after_trans_sentinel() to mysql_ha_set_explicit_lock_duration() after transactional sentinel was obsoleted by locks with explicit duration. sql/sql_insert.cc: Adjusted code handling delaying inserts after switching to new GRL implementation. Now connection thread initiating delayed insert has to acquire global IX lock in addition to metadata lock on table being inserted into. This IX lock protects against GRL and similarly to SW lock on table being inserted into has to be passed to handler thread in order to avoid deadlocks. sql/sql_lex.cc: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_lex.h: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_parse.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. This lock is automatically released at the end of statement execution. - Changed implementation of CREATE/DROP PROCEDURE/FUNCTION not to release metadata locks and thus protection against of GRL in the middle of statement execution. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_prepare.cc: Adjusted code to the to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_rename.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before renaming tables. This happens automatically in code which acquires metadata locks on tables being renamed. sql/sql_show.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_table.cc: - With new GRL implementation there is no need to explicitly acquire protection against GRL before dropping tables. This happens automatically in code which acquires metadata locks on tables being dropped. - Changed mysql_alter_table() not to release lock on new table name explicitly and to rely on automatic release of locks at the end of statement instead. This was necessary since now MDL_context::release_lock() is supported only for locks for explicit duration. sql/sql_trigger.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before changing table triggers. This happens automatically in code which acquires metadata locks on tables which triggers are to be changed. sql/sql_update.cc: Fix bug exposed by GRL testing. During prepare phase acquire only S metadata locks instead of SW locks to keep prepare of multi-UPDATE compatible with concurrent LOCK TABLES WRITE and global read lock. sql/sql_view.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before creating view. This happens automatically in code which acquires metadata lock on view to be created. sql/sql_yacc.yy: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/table.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/table.h: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/transaction.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. Also adjusted code to the fact that MDL savepoint is now represented by MDL_savepoint class.
2010-11-11 18:11:05 +01:00
MYSQL_TIME time;
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
DBUG_ENTER("Event_db_repository::update_timing_fields_for_event");
/*
Turn off row binlogging of event timing updates. These are not used
for RBR of events replicated to the slave.
*/
save_binlog_format= thd->set_current_stmt_binlog_format_stmt();
Patch for BUG#31111: --read-only crashes MySQL (events fail to load). There actually were several problems here: - WRITE-lock is required to load events from the mysql.event table, but in the read-only mode an ordinary user can not acquire it; - Security_context::master_access attribute was not properly initialized in Security_context::init(), which led to differences in behavior with and without debug configure options. - if the server failed to load events from mysql.event, it forgot to close the mysql.event table, that led to the coredump, described in the bug report. The patch is to fix all these problems: - Use the super-user to acquire WRITE-lock on the mysql.even table; - The WRITE-lock is acquired by the event scheduler in two cases: - on initial loading of events from the database; - when an event has been executed, so its attributes should be updated. Other cases when WRITE-lock is needed for the mysql.event table happen under the user account. So, nothing should be changed there for the read-only mode. The user is able to create/update/drop an event only if he is a super-user. - Initialize Security_context::master_access; - Close the mysql.event table in case something went wrong. mysql-test/r/events_bugs.result: Update result file. mysql-test/t/events_bugs.test: A test case for BUG#31111: --read-only crashes MySQL (events fail to load). sql/event_data_objects.cc: When the worker thread is going to drop event after the execution we should do it under the super-user privileges in order to be able to lock the mysql.event table for writing in the read-only mode. This is a system operation, where user SQL can not be executed. So, there is no risk in compromising security by dropping an event under the super-user privileges. sql/event_db_repository.cc: 1. Close tables if something went wrong in simple_open_n_lock_tables(); 2. As soon as the system event scheduler thread is running under the super-user privileges, we should always be able to acquire WRITE-lock on the mysql.event table. However, let's have an assert to check this. sql/event_scheduler.cc: Run the system event scheduler thread under the super-user privileges. In particular, this is needed to be able to lock the mysql.event table for writing when the server is running in the read-only mode. The event scheduler executes only system operations and does not execute user SQL (this is what the worker threads for). So, there is no risk in compromising security by running the event scheduler under the super-user privileges. sql/events.cc: Open the mysql.event table as the super user to be able to acquire WRITE-lock in the read-only mode. sql/sql_class.cc: Initialize Security_context::master_acces.
2007-10-19 17:57:08 +02:00
DBUG_ASSERT(thd->security_ctx->master_access & SUPER_ACL);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
if (open_event_table(thd, TL_WRITE, &table))
goto end;
fields= table->field;
if (find_named_event(event_db_name, event_name, table))
goto end;
store_record(table, record[1]);
Patch that refactors global read lock implementation and fixes bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK" and bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'". The first bug manifested itself as a deadlock which occurred when a connection, which had some table open through HANDLER statement, tried to update some data through DML statement while another connection tried to execute FLUSH TABLES WITH READ LOCK concurrently. What happened was that FTWRL in the second connection managed to perform first step of GRL acquisition and thus blocked all upcoming DML. After that it started to wait for table open through HANDLER statement to be flushed. When the first connection tried to execute DML it has started to wait for GRL/the second connection creating deadlock. The second bug manifested itself as starvation of FLUSH TABLES WITH READ LOCK statements in cases when there was a constant stream of concurrent DML statements (in two or more connections). This has happened because requests for protection against GRL which were acquired by DML statements were ignoring presence of pending GRL and thus the latter was starved. This patch solves both these problems by re-implementing GRL using metadata locks. Similar to the old implementation acquisition of GRL in new implementation is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. The first problem is solved because waits for GRL become visible to deadlock detector in metadata locking subsystem and thus deadlocks like one in the first bug become impossible. The second problem is solved because global S locks which are used for GRL implementation are given preference over IX locks which are acquired by concurrent DML (and we can switch to fair scheduling in future if needed). Important change: FTWRL/GRL no longer blocks DML and DDL on temporary tables. Before this patch behavior was not consistent in this respect: in some cases DML/DDL statements on temporary tables were blocked while in others they were not. Since the main use cases for FTWRL are various forms of backups and temporary tables are not preserved during backups we have opted for consistently allowing DML/DDL on temporary tables during FTWRL/GRL. Important change: This patch changes thread state names which are used when DML/DDL of FTWRL is waiting for global read lock. It is now either "Waiting for global read lock" or "Waiting for commit lock" depending on the stage on which FTWRL is. Incompatible change: To solve deadlock in events code which was exposed by this patch we have to replace LOCK_event_metadata mutex with metadata locks on events. As result we have to prohibit DDL on events under LOCK TABLES. This patch also adds extensive test coverage for interaction of DML/DDL and FTWRL. Performance of new and old global read lock implementations in sysbench tests were compared. There were no significant difference between new and old implementations. mysql-test/include/check_ftwrl_compatible.inc: Added helper script which allows to check that a statement is compatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/check_ftwrl_incompatible.inc: Added helper script which allows to check that a statement is incompatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/handler.inc: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/include/wait_show_condition.inc: Fixed small error in the timeout message. The correct name of variable used as parameter for this script is "$condition" and not "$wait_condition". mysql-test/r/delayed.result: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/r/events_2.result: Updated test results after prohibiting event DDL operations under LOCK TABLES. mysql-test/r/flush.result: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/r/flush_read_lock.result: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/r/flush_read_lock_kill.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/r/handler_innodb.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/handler_myisam.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/mdl_sync.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. mysql-test/suite/perfschema/r/dml_setup_instruments.result: Updated test results after removing global COND_global_read_lock condition variable. mysql-test/suite/perfschema/r/func_file_io.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/func_mutex.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/global_read_lock.result: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/r/server_init.result: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/perfschema/t/func_file_io.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/func_mutex.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/global_read_lock.test: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/t/server_init.test: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/rpl/r/rpl_tmp_table_and_DDL.result: Updated test results after prohibiting event DDL under LOCK TABLES. mysql-test/t/delayed.test: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/t/events_2.test: Updated test case after prohibiting event DDL operations under LOCK TABLES. mysql-test/t/flush.test: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/t/flush_block_commit.test: Adjusted test case after changing thread state name which is used when COMMIT waits for FLUSH TABLES WITH READ LOCK from "Waiting for release of readlock" to "Waiting for commit lock". mysql-test/t/flush_block_commit_notembedded.test: Adjusted test case after changing thread state name which is used when DML waits for FLUSH TABLES WITH READ LOCK. Now we use "Waiting for global read lock" in this case. mysql-test/t/flush_read_lock.test: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/t/flush_read_lock_kill-master.opt: We no longer need to use make_global_read_lock_block_commit_loop debug tag in this test. Instead we rely on an appropriate debug_sync point in MDL code. mysql-test/t/flush_read_lock_kill.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/t/lock_multi.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". mysql-test/t/mdl_sync.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. Updated thread state names which are used when DDL waits for FTWRL. mysql-test/t/trigger_notembedded.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". sql/event_data_objects.cc: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_data_objects.h: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_db_repository.cc: - Changed Event_db_repository methods to not release all metadata locks once they are done updating mysql.events table. This allows to keep metadata lock protecting against GRL and lock protecting particular event around until corresponding DDL statement is written to the binary log. - Removed logic for conditional update of "status" and "last_executed" fields from update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" is too much hassle. sql/event_db_repository.h: Removed logic for conditional update of "status" and "last_executed" fields from Event_db_repository:: update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" field is too much hassle. sql/event_queue.cc: Changed event scheduler code not to update mysql.events table while holding Event_queue::LOCK_event_queue mutex. Doing so led to a deadlock with a new GRL implementation. This deadlock didn't occur with old implementation due to fact that code acquiring protection against GRL ignored pending GRL requests (which lead to GRL starvation). One of goals of new implementation is to disallow GRL starvation and so we have to solve problem with this deadlock in a different way. sql/events.cc: Changed methods of Events class to acquire protection against GRL while perfoming DDL statement and keep it until statement is written to the binary log. Unfortunately this step together with new GRL implementation exposed deadlock involving Events::LOCK_event_metadata and GRL. To solve it Events::LOCK_event_metadata mutex was replaced with a metadata lock on event. As a side-effect events DDL has to be prohibited under LOCK TABLES even in cases when mysql.events table was explicitly locked for write. sql/events.h: Replaced Events::LOCK_event_metadata mutex with a metadata lock on event. sql/ha_ndbcluster.cc: Updated code after replacing custom global read lock implementation with one based on MDL. Since MDL subsystem should now be able to detect deadlocks involving metadata locks and GRL there is no need for special handling of active GRL. sql/handler.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. sql/lock.cc: Replaced custom implementation of global read lock with one based on metadata locks. This step allows to expose wait for GRL to deadlock detector of MDL subsystem and thus succesfully resolve deadlocks similar to one behind bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". It also solves problem with GRL starvation described in bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'" since metadata locks used by GRL give preference to FTWRL statement instead of DML statements (if needed in future this can be changed to fair scheduling). Similar to old implementation of acquisition of GRL is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. To support this change: - Global_read_lock::lock/unlock_global_read_lock and make_global_read_lock_block_commit methods were changed accordingly. - Global_read_lock::wait_if_global_read_lock() and start_waiting_global_read_lock() methods were dropped. It is now responsibility of code acquiring metadata locks opening tables to acquire protection against GRL by explicitly taking global IX lock with statement duration. - Global variables, mutex and condition variable used by old implementation was removed. - lock_routine_name() was changed to use statement duration for its global IX lock. It was also renamed to lock_object_name() as it now also used to take metadata locks on events. - Global_read_lock::set_explicit_lock_duration() was added which allows not to release locks used for GRL when leaving prelocked mode. sql/lock.h: - Renamed lock_routine_name() to lock_object_name() and changed its signature to allow its usage for events. - Removed broadcast_refresh() function. It is no longer needed with new GRL implementation. sql/log_event.cc: Release metadata locks with statement duration at the end of processing legacy event for LOAD DATA. This ensures that replication thread processing such event properly releases its protection against global read lock. sql/mdl.cc: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Changed thread state name for GLOBAL namespace to "Waiting for global read lock". Optimized MDL_map::find_or_insert() method to avoid taking m_mutex mutex when looking up MDL_lock objects for GLOBAL or COMMIT namespaces. We keep pre-created MDL_lock objects for these namespaces around and simply return pointers to these global objects when needed. Changed MDL_lock/MDL_scoped_lock to properly handle notification of insert delayed handler threads when FTWRL takes global S lock. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mdl.h: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mysqld.cc: Removed global mutex and condition variables which were used by old implementation of GRL. Also we no longer need to initialize Events::LOCK_event_metadata mutex as it was replaced with metadata locks on events. sql/mysqld.h: Removed global variable, mutex and condition variables which were used by old implementation of GRL. sql/rpl_rli.cc: When slave thread closes tables which were open for handling of RBR events ensure that it releases global IX lock which was acquired as protection against GRL. sql/sp.cc: Adjusted code to the new signature of lock_object/routine_name(), to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sp_head.cc: Ensure that statements in stored procedures release statement metadata locks and thus release their protectiong against GRL in proper moment in time. Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_admin.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_base.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. Code doing this also responsible for checking that current connection has no active GRL by calling an Global_read_lock::can_acquire_protection() method. Changed code in open_table() and lock_table_names() accordingly. Note that as result of this change DDL and DML on temporary tables is always compatible with GRL (before it was incompatible in some cases and compatible in other cases). - To speed-up code acquiring protection against GRL introduced m_has_protection_against_grl member in Open_table_context class. It indicates that protection was already acquired sometime during open_tables() execution and new attempts can be skipped. - Thanks to new GRL implementation calls to broadcast_refresh() became unnecessary and were removed. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_base.h: Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. Also introduced Open_table_context::m_has_protection_against_grl member which allows to avoid acquiring protection against GRL while opening tables if such protection was already acquired. sql/sql_class.cc: Changed THD::leave_locked_tables_mode() after transactional sentinel for metadata locks was obsoleted by introduction of locks with explicit duration. sql/sql_class.h: - Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. - Changed Global_read_lock class according to changes in global read lock implementation: * wait_if_global_read_lock and start_waiting_global_read_lock are now gone. Instead code needing protection against GRL has to acquire global IX metadata lock with statement duration itself. To help it new can_acquire_protection() was introduced. Also as result of the above change m_protection_count member is gone too. * Added m_mdl_blocks_commits_lock member to store metadata lock blocking commits. * Adjusted code to the fact that concept of transactional sentinel was obsoleted by concept of lock duration. - Removed CF_PROTECT_AGAINST_GRL flag as it is no longer necessary. New GRL implementation acquires protection against global read lock automagically when statement acquires metadata locks on tables or other objects it is going to change. sql/sql_db.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_handler.cc: Removed call to broadcast_refresh() function. It is no longer needed with new GRL implementation. Adjusted code after introducing duration concept for metadata locks. Particularly to the fact transactional sentinel was replaced with explicit duration. sql/sql_handler.h: Renamed mysql_ha_move_tickets_after_trans_sentinel() to mysql_ha_set_explicit_lock_duration() after transactional sentinel was obsoleted by locks with explicit duration. sql/sql_insert.cc: Adjusted code handling delaying inserts after switching to new GRL implementation. Now connection thread initiating delayed insert has to acquire global IX lock in addition to metadata lock on table being inserted into. This IX lock protects against GRL and similarly to SW lock on table being inserted into has to be passed to handler thread in order to avoid deadlocks. sql/sql_lex.cc: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_lex.h: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_parse.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. This lock is automatically released at the end of statement execution. - Changed implementation of CREATE/DROP PROCEDURE/FUNCTION not to release metadata locks and thus protection against of GRL in the middle of statement execution. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_prepare.cc: Adjusted code to the to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_rename.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before renaming tables. This happens automatically in code which acquires metadata locks on tables being renamed. sql/sql_show.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_table.cc: - With new GRL implementation there is no need to explicitly acquire protection against GRL before dropping tables. This happens automatically in code which acquires metadata locks on tables being dropped. - Changed mysql_alter_table() not to release lock on new table name explicitly and to rely on automatic release of locks at the end of statement instead. This was necessary since now MDL_context::release_lock() is supported only for locks for explicit duration. sql/sql_trigger.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before changing table triggers. This happens automatically in code which acquires metadata locks on tables which triggers are to be changed. sql/sql_update.cc: Fix bug exposed by GRL testing. During prepare phase acquire only S metadata locks instead of SW locks to keep prepare of multi-UPDATE compatible with concurrent LOCK TABLES WRITE and global read lock. sql/sql_view.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before creating view. This happens automatically in code which acquires metadata lock on view to be created. sql/sql_yacc.yy: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/table.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/table.h: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/transaction.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. Also adjusted code to the fact that MDL savepoint is now represented by MDL_savepoint class.
2010-11-11 18:11:05 +01:00
my_tz_OFFSET0->gmt_sec_to_TIME(&time, last_executed);
fields[ET_FIELD_LAST_EXECUTED]->set_notnull();
fields[ET_FIELD_LAST_EXECUTED]->store_time(&time);
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
Patch that refactors global read lock implementation and fixes bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK" and bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'". The first bug manifested itself as a deadlock which occurred when a connection, which had some table open through HANDLER statement, tried to update some data through DML statement while another connection tried to execute FLUSH TABLES WITH READ LOCK concurrently. What happened was that FTWRL in the second connection managed to perform first step of GRL acquisition and thus blocked all upcoming DML. After that it started to wait for table open through HANDLER statement to be flushed. When the first connection tried to execute DML it has started to wait for GRL/the second connection creating deadlock. The second bug manifested itself as starvation of FLUSH TABLES WITH READ LOCK statements in cases when there was a constant stream of concurrent DML statements (in two or more connections). This has happened because requests for protection against GRL which were acquired by DML statements were ignoring presence of pending GRL and thus the latter was starved. This patch solves both these problems by re-implementing GRL using metadata locks. Similar to the old implementation acquisition of GRL in new implementation is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. The first problem is solved because waits for GRL become visible to deadlock detector in metadata locking subsystem and thus deadlocks like one in the first bug become impossible. The second problem is solved because global S locks which are used for GRL implementation are given preference over IX locks which are acquired by concurrent DML (and we can switch to fair scheduling in future if needed). Important change: FTWRL/GRL no longer blocks DML and DDL on temporary tables. Before this patch behavior was not consistent in this respect: in some cases DML/DDL statements on temporary tables were blocked while in others they were not. Since the main use cases for FTWRL are various forms of backups and temporary tables are not preserved during backups we have opted for consistently allowing DML/DDL on temporary tables during FTWRL/GRL. Important change: This patch changes thread state names which are used when DML/DDL of FTWRL is waiting for global read lock. It is now either "Waiting for global read lock" or "Waiting for commit lock" depending on the stage on which FTWRL is. Incompatible change: To solve deadlock in events code which was exposed by this patch we have to replace LOCK_event_metadata mutex with metadata locks on events. As result we have to prohibit DDL on events under LOCK TABLES. This patch also adds extensive test coverage for interaction of DML/DDL and FTWRL. Performance of new and old global read lock implementations in sysbench tests were compared. There were no significant difference between new and old implementations. mysql-test/include/check_ftwrl_compatible.inc: Added helper script which allows to check that a statement is compatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/check_ftwrl_incompatible.inc: Added helper script which allows to check that a statement is incompatible with FLUSH TABLES WITH READ LOCK. mysql-test/include/handler.inc: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/include/wait_show_condition.inc: Fixed small error in the timeout message. The correct name of variable used as parameter for this script is "$condition" and not "$wait_condition". mysql-test/r/delayed.result: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/r/events_2.result: Updated test results after prohibiting event DDL operations under LOCK TABLES. mysql-test/r/flush.result: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/r/flush_read_lock.result: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/r/flush_read_lock_kill.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/r/handler_innodb.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/handler_myisam.result: Adjusted test case to the fact that now DROP TABLE closes open HANDLERs for the table to be dropped before checking if there active FTWRL in this connection. mysql-test/r/mdl_sync.result: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. mysql-test/suite/perfschema/r/dml_setup_instruments.result: Updated test results after removing global COND_global_read_lock condition variable. mysql-test/suite/perfschema/r/func_file_io.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/func_mutex.result: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/r/global_read_lock.result: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/r/server_init.result: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/perfschema/t/func_file_io.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/func_mutex.test: Ensure that this test doesn't affect subsequent tests. At the end of its execution enable back P_S instrumentation which this test disables at some point. mysql-test/suite/perfschema/t/global_read_lock.test: Adjusted test case to take into account that new GRL implementation is based on MDL. mysql-test/suite/perfschema/t/server_init.test: Adjusted test case after replacing custom global read lock implementation with one based on MDL and replacing LOCK_event_metadata mutex with metadata lock. mysql-test/suite/rpl/r/rpl_tmp_table_and_DDL.result: Updated test results after prohibiting event DDL under LOCK TABLES. mysql-test/t/delayed.test: Added test coverage for scenario which triggered assert in metadata locking subsystem. mysql-test/t/events_2.test: Updated test case after prohibiting event DDL operations under LOCK TABLES. mysql-test/t/flush.test: Added test coverage for bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". mysql-test/t/flush_block_commit.test: Adjusted test case after changing thread state name which is used when COMMIT waits for FLUSH TABLES WITH READ LOCK from "Waiting for release of readlock" to "Waiting for commit lock". mysql-test/t/flush_block_commit_notembedded.test: Adjusted test case after changing thread state name which is used when DML waits for FLUSH TABLES WITH READ LOCK. Now we use "Waiting for global read lock" in this case. mysql-test/t/flush_read_lock.test: Added test coverage for various aspects of FLUSH TABLES WITH READ LOCK functionality. mysql-test/t/flush_read_lock_kill-master.opt: We no longer need to use make_global_read_lock_block_commit_loop debug tag in this test. Instead we rely on an appropriate debug_sync point in MDL code. mysql-test/t/flush_read_lock_kill.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Use new debug_sync point. Do not disable concurrent inserts as now InnoDB we always use InnoDB table. mysql-test/t/lock_multi.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". mysql-test/t/mdl_sync.test: Adjusted test case after replacing custom global read lock implementation with one based on metadata locks. Replaced usage of GRL-specific debug_sync's with appropriate sync points in MDL subsystem. Updated thread state names which are used when DDL waits for FTWRL. mysql-test/t/trigger_notembedded.test: Adjusted test case after changing thread state names which are used when DML or DDL waits for FLUSH TABLES WITH READ LOCK to "Waiting for global read lock". sql/event_data_objects.cc: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_data_objects.h: Removed Event_queue_element::status/last_executed_changed members and Event_queue_element::update_timing_fields() method. We no longer use this class for updating mysql.events once event is chosen for execution. Accesses to instances of this class in scheduler thread require protection by Event_queue::LOCK_event_queue mutex and we try to avoid updating table while holding this lock. sql/event_db_repository.cc: - Changed Event_db_repository methods to not release all metadata locks once they are done updating mysql.events table. This allows to keep metadata lock protecting against GRL and lock protecting particular event around until corresponding DDL statement is written to the binary log. - Removed logic for conditional update of "status" and "last_executed" fields from update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" is too much hassle. sql/event_db_repository.h: Removed logic for conditional update of "status" and "last_executed" fields from Event_db_repository:: update_timing_fields_for_event() method. In the only case when this method is called now "last_executed" is always modified and tracking change of "status" field is too much hassle. sql/event_queue.cc: Changed event scheduler code not to update mysql.events table while holding Event_queue::LOCK_event_queue mutex. Doing so led to a deadlock with a new GRL implementation. This deadlock didn't occur with old implementation due to fact that code acquiring protection against GRL ignored pending GRL requests (which lead to GRL starvation). One of goals of new implementation is to disallow GRL starvation and so we have to solve problem with this deadlock in a different way. sql/events.cc: Changed methods of Events class to acquire protection against GRL while perfoming DDL statement and keep it until statement is written to the binary log. Unfortunately this step together with new GRL implementation exposed deadlock involving Events::LOCK_event_metadata and GRL. To solve it Events::LOCK_event_metadata mutex was replaced with a metadata lock on event. As a side-effect events DDL has to be prohibited under LOCK TABLES even in cases when mysql.events table was explicitly locked for write. sql/events.h: Replaced Events::LOCK_event_metadata mutex with a metadata lock on event. sql/ha_ndbcluster.cc: Updated code after replacing custom global read lock implementation with one based on MDL. Since MDL subsystem should now be able to detect deadlocks involving metadata locks and GRL there is no need for special handling of active GRL. sql/handler.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. sql/lock.cc: Replaced custom implementation of global read lock with one based on metadata locks. This step allows to expose wait for GRL to deadlock detector of MDL subsystem and thus succesfully resolve deadlocks similar to one behind bug #57006 "Deadlock between HANDLER and FLUSH TABLES WITH READ LOCK". It also solves problem with GRL starvation described in bug #54673 "It takes too long to get readlock for 'FLUSH TABLES WITH READ LOCK'" since metadata locks used by GRL give preference to FTWRL statement instead of DML statements (if needed in future this can be changed to fair scheduling). Similar to old implementation of acquisition of GRL is two-step. During the first step we block all concurrent DML and DDL statements by acquiring global S metadata lock (each DML and DDL statement acquires global IX lock for its duration). During the second step we block commits by acquiring global S lock in COMMIT namespace (commit code acquires global IX lock in this namespace). Note that unlike in old implementation acquisition of protection against GRL in DML and DDL is semi-automatic. We assume that any statement which should be blocked by GRL will either open and acquires write-lock on tables or acquires metadata locks on objects it is going to modify. For any such statement global IX metadata lock is automatically acquired for its duration. To support this change: - Global_read_lock::lock/unlock_global_read_lock and make_global_read_lock_block_commit methods were changed accordingly. - Global_read_lock::wait_if_global_read_lock() and start_waiting_global_read_lock() methods were dropped. It is now responsibility of code acquiring metadata locks opening tables to acquire protection against GRL by explicitly taking global IX lock with statement duration. - Global variables, mutex and condition variable used by old implementation was removed. - lock_routine_name() was changed to use statement duration for its global IX lock. It was also renamed to lock_object_name() as it now also used to take metadata locks on events. - Global_read_lock::set_explicit_lock_duration() was added which allows not to release locks used for GRL when leaving prelocked mode. sql/lock.h: - Renamed lock_routine_name() to lock_object_name() and changed its signature to allow its usage for events. - Removed broadcast_refresh() function. It is no longer needed with new GRL implementation. sql/log_event.cc: Release metadata locks with statement duration at the end of processing legacy event for LOAD DATA. This ensures that replication thread processing such event properly releases its protection against global read lock. sql/mdl.cc: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Changed thread state name for GLOBAL namespace to "Waiting for global read lock". Optimized MDL_map::find_or_insert() method to avoid taking m_mutex mutex when looking up MDL_lock objects for GLOBAL or COMMIT namespaces. We keep pre-created MDL_lock objects for these namespaces around and simply return pointers to these global objects when needed. Changed MDL_lock/MDL_scoped_lock to properly handle notification of insert delayed handler threads when FTWRL takes global S lock. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mdl.h: Changed MDL subsystem to support new MDL-based implementation of global read lock. Added COMMIT and EVENTS namespaces for metadata locks. Introduced concept of lock duration. In addition to locks with transaction duration which work in the way which is similar to how locks worked before (i.e. they are released at the end of transaction), locks with statement and explicit duration were introduced. Locks with statement duration are automatically released at the end of statement. Locks with explicit duration require explicit release and obsolete concept of transactional sentinel. * Changed MDL_request and MDL_ticket classes to support notion of duration. * Changed MDL_context to keep locks with different duration in different lists. Changed code handling ticket list to take this into account. * Changed methods responsible for releasing locks to take into account duration of tickets. Particularly public MDL_context::release_lock() method now only can release tickets with explicit duration (there is still internal method which allows to specify duration). To release locks with statement or transaction duration one have to use release_statement/transactional_locks() methods. * Concept of savepoint for MDL subsystem now has to take into account locks with statement duration. Consequently MDL_savepoint class was introduced and methods working with savepoints were updated accordingly. * Added methods which allow to set duration for one or all locks in the context. sql/mysqld.cc: Removed global mutex and condition variables which were used by old implementation of GRL. Also we no longer need to initialize Events::LOCK_event_metadata mutex as it was replaced with metadata locks on events. sql/mysqld.h: Removed global variable, mutex and condition variables which were used by old implementation of GRL. sql/rpl_rli.cc: When slave thread closes tables which were open for handling of RBR events ensure that it releases global IX lock which was acquired as protection against GRL. sql/sp.cc: Adjusted code to the new signature of lock_object/routine_name(), to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sp_head.cc: Ensure that statements in stored procedures release statement metadata locks and thus release their protectiong against GRL in proper moment in time. Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_admin.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_base.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. Code doing this also responsible for checking that current connection has no active GRL by calling an Global_read_lock::can_acquire_protection() method. Changed code in open_table() and lock_table_names() accordingly. Note that as result of this change DDL and DML on temporary tables is always compatible with GRL (before it was incompatible in some cases and compatible in other cases). - To speed-up code acquiring protection against GRL introduced m_has_protection_against_grl member in Open_table_context class. It indicates that protection was already acquired sometime during open_tables() execution and new attempts can be skipped. - Thanks to new GRL implementation calls to broadcast_refresh() became unnecessary and were removed. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_base.h: Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. Also introduced Open_table_context::m_has_protection_against_grl member which allows to avoid acquiring protection against GRL while opening tables if such protection was already acquired. sql/sql_class.cc: Changed THD::leave_locked_tables_mode() after transactional sentinel for metadata locks was obsoleted by introduction of locks with explicit duration. sql/sql_class.h: - Adjusted code to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. - Changed Global_read_lock class according to changes in global read lock implementation: * wait_if_global_read_lock and start_waiting_global_read_lock are now gone. Instead code needing protection against GRL has to acquire global IX metadata lock with statement duration itself. To help it new can_acquire_protection() was introduced. Also as result of the above change m_protection_count member is gone too. * Added m_mdl_blocks_commits_lock member to store metadata lock blocking commits. * Adjusted code to the fact that concept of transactional sentinel was obsoleted by concept of lock duration. - Removed CF_PROTECT_AGAINST_GRL flag as it is no longer necessary. New GRL implementation acquires protection against global read lock automagically when statement acquires metadata locks on tables or other objects it is going to change. sql/sql_db.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/sql_handler.cc: Removed call to broadcast_refresh() function. It is no longer needed with new GRL implementation. Adjusted code after introducing duration concept for metadata locks. Particularly to the fact transactional sentinel was replaced with explicit duration. sql/sql_handler.h: Renamed mysql_ha_move_tickets_after_trans_sentinel() to mysql_ha_set_explicit_lock_duration() after transactional sentinel was obsoleted by locks with explicit duration. sql/sql_insert.cc: Adjusted code handling delaying inserts after switching to new GRL implementation. Now connection thread initiating delayed insert has to acquire global IX lock in addition to metadata lock on table being inserted into. This IX lock protects against GRL and similarly to SW lock on table being inserted into has to be passed to handler thread in order to avoid deadlocks. sql/sql_lex.cc: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_lex.h: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/sql_parse.cc: - Implemented support for new approach to acquiring protection against global read lock. We no longer acquire such protection explicitly on the basis of statement flags. Instead we always rely on code which is responsible for acquiring metadata locks on object to be changed acquiring this protection. This is achieved by acquiring global IX metadata lock with statement duration. This lock is automatically released at the end of statement execution. - Changed implementation of CREATE/DROP PROCEDURE/FUNCTION not to release metadata locks and thus protection against of GRL in the middle of statement execution. - Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_prepare.cc: Adjusted code to the to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_rename.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before renaming tables. This happens automatically in code which acquires metadata locks on tables being renamed. sql/sql_show.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request and to the fact that savepoints for MDL subsystem are now represented by MDL_savepoint class. sql/sql_table.cc: - With new GRL implementation there is no need to explicitly acquire protection against GRL before dropping tables. This happens automatically in code which acquires metadata locks on tables being dropped. - Changed mysql_alter_table() not to release lock on new table name explicitly and to rely on automatic release of locks at the end of statement instead. This was necessary since now MDL_context::release_lock() is supported only for locks for explicit duration. sql/sql_trigger.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before changing table triggers. This happens automatically in code which acquires metadata locks on tables which triggers are to be changed. sql/sql_update.cc: Fix bug exposed by GRL testing. During prepare phase acquire only S metadata locks instead of SW locks to keep prepare of multi-UPDATE compatible with concurrent LOCK TABLES WRITE and global read lock. sql/sql_view.cc: With new GRL implementation there is no need to explicitly acquire protection against GRL before creating view. This happens automatically in code which acquires metadata lock on view to be created. sql/sql_yacc.yy: LEX::protect_against_global_read_lock member is no longer necessary since protection against GRL is automatically taken by code acquiring metadata locks/opening tables. sql/table.cc: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/table.h: Adjusted code to the fact that one now needs specify duration of lock when initializing MDL_request. sql/transaction.cc: Replaced custom implementation of global read lock with one based on metadata locks. Consequently when doing commit instead of calling method of Global_read_lock class to acquire protection against GRL we simply acquire IX in COMMIT namespace. Also adjusted code to the fact that MDL savepoint is now represented by MDL_savepoint class.
2010-11-11 18:11:05 +01:00
fields[ET_FIELD_STATUS]->set_notnull();
fields[ET_FIELD_STATUS]->store(status, TRUE);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
if ((ret= table->file->ha_update_row(table->record[1], table->record[0])))
{
table->file->print_error(ret, MYF(0));
goto end;
}
ret= 0;
end:
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
if (table)
A pre-requisite patch for the fix for Bug#52044. This patch also fixes Bug#55452 "SET PASSWORD is replicated twice in RBR mode". The goal of this patch is to remove the release of metadata locks from close_thread_tables(). This is necessary to not mistakenly release the locks in the course of a multi-step operation that involves multiple close_thread_tables() or close_tables_for_reopen(). On the same token, move statement commit outside close_thread_tables(). Other cleanups: Cleanup COM_FIELD_LIST. Don't call close_thread_tables() in COM_SHUTDOWN -- there are no open tables there that can be closed (we leave the locked tables mode in THD destructor, and this close_thread_tables() won't leave it anyway). Make open_and_lock_tables() and open_and_lock_tables_derived() call close_thread_tables() upon failure. Remove the calls to close_thread_tables() that are now unnecessary. Simplify the back off condition in Open_table_context. Streamline metadata lock handling in LOCK TABLES implementation. Add asserts to ensure correct life cycle of statement transaction in a session. Remove a piece of dead code that has also become redundant after the fix for Bug 37521. mysql-test/r/variables.result: Update results: set @@autocommit and statement transaction/ prelocked mode. mysql-test/r/view.result: A harmless change in CHECK TABLE <view> status for a broken view. If previously a failure to prelock all functions used in a view would leave the connection in LTM_PRELOCKED mode, now we call close_thread_tables() from open_and_lock_tables() and leave prelocked mode, thus some check in mysql_admin_table() that works only in prelocked/locked tables mode is no longer activated. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Fixed Bug#55452 "SET PASSWORD is replicated twice in RBR mode": extra binlog events are gone from the binary log. mysql-test/t/variables.test: Add a test case: set autocommit and statement transaction/prelocked mode. sql/event_data_objects.cc: Simplify code in Event_job_data::execute(). Move sp_head memory management to lex_end(). sql/event_db_repository.cc: Move the release of metadata locks outside close_thread_tables(). Make sure we call close_thread_tables() when open_and_lock_tables() fails and remove extra code from the events data dictionary. Use close_mysql_tables(), a new internal function to properly close mysql.* tables in the data dictionary. Contract Event_db_repository::drop_events_by_field, drop_schema_events into one function. When dropping all events in a schema, make sure we don't mistakenly release all locks acquired by DROP DATABASE. These include locks on the database name and the global intention exclusive metadata lock. sql/event_db_repository.h: Function open_event_table() does not require an instance of Event_db_repository. sql/events.cc: Use close_mysql_tables() instead of close_thread_tables() to bootstrap events, since the latter no longer releases metadata locks. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 no longer releases acquired metadata locks. Do it in the caller. sql/ha_ndbcluster_binlog.cc: Deploy the new protocol for closing thread tables in run_query() and ndb_binlog_index code. sql/handler.cc: Assert that we never call ha_commit_trans/ ha_rollback_trans in sub-statement, which is now the case. sql/handler.h: Add an accessor to check whether THD_TRANS object is empty (has no transaction started). sql/log.cc: Update a comment. sql/log_event.cc: Since now we commit/rollback statement transaction in mysql_execute_command(), we need a mechanism to communicate from Query_log_event::do_apply_event() to mysql_execute_command() that the statement transaction should be rolled back, not committed. Ideally it would be a virtual method of THD. I hesitate to make THD a virtual base class in this already large patch. Use a thd->variables.option_bits for now. Remove a call to close_thread_tables() from the slave IO thread. It doesn't open any tables, and the protocol for closing thread tables is more complicated now. Make sure we properly close thread tables, however, in Load_data_log_event, which doesn't follow the standard server execution procedure with mysql_execute_command(). @todo: this piece should use Server_runnable framework instead. Remove an unnecessary call to mysql_unlock_tables(). sql/rpl_rli.cc: Update Relay_log_info::slave_close_thread_tables() to follow the new close protocol. sql/set_var.cc: Remove an unused header. sql/slave.cc: Remove an unnecessary call to close_thread_tables(). sql/sp.cc: Remove unnecessary calls to close_thread_tables() from SP DDL implementation. The tables will be closed by the caller, in mysql_execute_command(). When dropping all routines in a database, make sure to not mistakenly drop all metadata locks acquired so far, they include the scoped lock on the schema. sql/sp_head.cc: Correct the protocol that closes thread tables in an SP instruction. Clear lex->sphead before cleaning up lex with lex_end to make sure that we don't delete the sphead twice. It's considered to be "cleaner" and more in line with future changes than calling delete lex->sphead in other places that cleanup the lex. sql/sp_head.h: When destroying m_lex_keeper of an instruction, don't delete the sphead that all lex objects share. @todo: don't store a reference to routine's sp_head instance in instruction's lex. sql/sql_acl.cc: Don't call close_thread_tables() where the caller will do that for us. Fix Bug#55452 "SET PASSWORD is replicated twice in RBR mode" by disabling RBR replication in change_password() function. Use close_mysql_tables() in bootstrap and ACL reload code to make sure we release all metadata locks. sql/sql_base.cc: This is the main part of the patch: - remove manipulation with thd->transaction and thd->mdl_context from close_thread_tables(). Now this function is only responsible for closing tables, nothing else. This is necessary to be able to easily use close_thread_tables() in procedures, that involve multiple open/close tables, which all need to be protected continuously by metadata locks. Add asserts ensuring that TABLE object is only used when is protected by a metadata lock. Simplify the back off condition of Open_table_context, we no longer need to look at the autocommit mode. Make open_and_lock_tables() and open_normal_and_derived_tables() close thread tables and release metadata locks acquired so-far upon failure. This simplifies their usage. Implement close_mysql_tables(). sql/sql_base.h: Add declaration for close_mysql_tables(). sql/sql_class.cc: Remove a piece of dead code that has also become redundant after the fix for Bug 37521. The code became dead when my_eof() was made a non-protocol method, but a method that merely modifies the diagnostics area. The code became redundant with the fix for Bug#37521, when we started to cal close_thread_tables() before Protocol::end_statement(). sql/sql_do.cc: Do nothing in DO if inside a substatement (the assert moved out of trans_rollback_stmt). sql/sql_handler.cc: Add comments. sql/sql_insert.cc: Remove dead code. Release metadata locks explicitly at the end of the delayed insert thread. sql/sql_lex.cc: Add destruction of lex->sphead to lex_end(), lex "reset" method called at the end of each statement. sql/sql_parse.cc: Move close_thread_tables() and other related cleanups to mysql_execute_command() from dispatch_command(). This has become possible after the fix for Bug#37521. Mark federated SERVER statements as DDL. Next step: make sure that we don't store eof packet in the query cache, and move the query cache code outside mysql_parse. Brush up the code of COM_FIELD_LIST. Remove unnecessary calls to close_thread_tables(). When killing a query, don't report "OK" if it was a suicide. sql/sql_parse.h: Remove declaration of a function that is now static. sql/sql_partition.cc: Remove an unnecessary call to close_thread_tables(). sql/sql_plugin.cc: open_and_lock_tables() will clean up after itself after a failure. Move close_thread_tables() above end: label, and replace with close_mysql_tables(), which will also release the metadata lock on mysql.plugin. sql/sql_prepare.cc: Now that we no longer release locks in close_thread_tables() statement prepare code has become more straightforward. Remove the now redundant check for thd->killed() (used only by the backup project) from Execute_server_runnable. Reorder code to take into account that now mysql_execute_command() performs lex->unit.cleanup() and close_thread_tables(). sql/sql_priv.h: Add a new option to server options to interact between the slave SQL thread and execution framework (hack). @todo: use a virtual method of class THD instead. sql/sql_servers.cc: Due to Bug 25705 replication of DROP/CREATE/ALTER SERVER is broken. Make sure at least we do not attempt to replicate these statements using RBR, as this violates the assert in close_mysql_tables(). sql/sql_table.cc: Do not release metadata locks in mysql_rm_table_part2, this is done by the caller. Do not call close_thread_tables() in mysql_create_table(), this is done by the caller. Fix a bug in DROP TABLE under LOCK TABLES when, upon error in wait_while_table_is_used() we would mistakenly release the metadata lock on a non-dropped table. Explicitly release metadata locks when doing an implicit commit. sql/sql_trigger.cc: Now that we delete lex->sphead in lex_end(), zero the trigger's sphead in lex after loading the trigger, to avoid double deletion. sql/sql_udf.cc: Use close_mysql_tables() instead of close_thread_tables(). sql/sys_vars.cc: Remove code added in scope of WL#4284 which would break when we perform set @@session.autocommit along with setting other variables and using tables or functions. A test case added to variables.test. sql/transaction.cc: Add asserts. sql/tztime.cc: Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 12:25:53 +02:00
close_mysql_tables(thd);
thd->restore_stmt_binlog_format(save_binlog_format);
WL#3337 (Event scheduler new architecture) More small fixes to the API : use LEX_STRING instead of LEX_STRING* and if error then return bool(true) instead of error code. Merged functions. Reduced usage of sp_name. Fixed a lot of function documentation errors. Added function documentation wherever needed. Removed some unused defines and error codes. Next to come is batch rename of Event_scheduler_ng to Event_scheduler. mysql-test/r/events.result: update result mysql-test/r/events_logs_tests.result: update result mysql-test/t/events.test: more test coverage mysql-test/t/events_logs_tests.test: fix test sql/event_data_objects.cc: Cosmetics. Fix function documentation whenever needed. Move Event_job_data::compile() next to Event_job_data::execute() sql/event_data_objects.h: Remove unneeded error codes and defines Move function declarations at the end of the header sql/event_db_repository.cc: Fix function documentation. Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. sql/event_db_repository.h: Event_db_repository::update_event() now uses LEX_STRING *-s instead of sp_name . Lower coupling. find_event -> find_named_event find_event_by_name is not used externally, merge with load_named_event() sql/event_queue.cc: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. sql/event_queue.h: LEX_STRING* to LEX_STRING Fix comments. Fix and add function documentation. Remove Event_queue::events_count() as it is unused Change get_top_for_execution_if_time() to return status code as return value and the object is in out parameter. Try to detect also lock attemptions for deadlocks. sql/event_scheduler_ng.cc: Always execute on thd->mem_root Fix according to changed API of Event_queue::get_top_for_execution_if_time() sql/events.cc: Fix function documentation. Fix code after API changes of internal Event module classes. sql/events.h: sp_name -> LEX_STRINGs sql/sql_parse.cc: Fix according to changed API of Events::show_create_event() sql/sql_yacc.yy: Don't pass NULL as third parameter to sp_head::init_strings()
2006-07-11 18:28:15 +02:00
DBUG_RETURN(MY_TEST(ret));
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
}
WL#3337 (Event scheduler new architecture) Cleaned up the code a bit. Fixed few leaks. This code still does not load events on server startup from disk. The problem is that there is a need for a THD instance, which does not exist during server boot. This will be solved soon. Still Event_timed is used both for the memory queue and for exectution. This will be changed according to WL#3337 probably in the next commit. sql/event_data_objects.cc: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_data_objects.h: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_db_repository.cc: Cosmetics. Add a new method load_named_event_job, to be made complete in the next commit. It will load from disk an instance of Event_job_data to be used during execution. sql/event_db_repository.h: find_event does not need MEM_ROOT anymore because the memory is allocated on Event's own root. sql/event_queue.cc: Remove dead code. Move dumping of the queue to separate method. Make critical sections in create_event & update_event as small as possible - load the new event outside of the section and free the object also outside of it. sql/event_queue.h: init -> init_queue -> easier for ctags deinit -> deinit_queue -> easier for ctags sql/event_scheduler.cc: empty this file sql/event_scheduler.h: empty this file sql/event_scheduler_ng.cc: add back DBUG_RETURN(0) in thread handlers. We don't stop running events when stopping the scheduler. Therefore remove this method now. If it is needed later it can be added back. sql/event_scheduler_ng.h: Remove stop_all_running_threads() init -> init_scheduler deinit -> deinit_scheduler easier for ctags sql/events.cc: Cosmetics sql/events.h: Cosmetics sql/set_var.cc: Remove references to dead code sql/sql_parse.cc: Reorganize a bit.
2006-07-05 17:12:50 +02:00
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
/**
Open mysql.db, mysql.user and mysql.event and check whether:
- mysql.db exists and is up to date (or from a newer version of MySQL),
- mysql.user has column Event_priv at an expected position,
- mysql.event exists and is up to date (or from a newer version of
MySQL)
This function is called only when the server is started.
@pre The passed in thread handle has no open tables.
@retval FALSE OK
@retval TRUE Error, an error message is output to the error log.
*/
bool
Event_db_repository::check_system_tables(THD *thd)
{
TABLE_LIST tables;
int ret= FALSE;
const unsigned int event_priv_column_position= 29;
DBUG_ENTER("Event_db_repository::check_system_tables");
DBUG_PRINT("enter", ("thd: 0x%lx", (long) thd));
/* Check mysql.db */
tables.init_one_table("mysql", 5, "db", 2, "db", TL_READ);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
if (open_and_lock_tables(thd, &tables, FALSE, MYSQL_LOCK_IGNORE_TIMEOUT))
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
{
ret= 1;
sql_print_error("Cannot open mysql.db");
}
else
{
if (table_intact.check(tables.table, &mysql_db_table_def))
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
ret= 1;
A pre-requisite patch for the fix for Bug#52044. This patch also fixes Bug#55452 "SET PASSWORD is replicated twice in RBR mode". The goal of this patch is to remove the release of metadata locks from close_thread_tables(). This is necessary to not mistakenly release the locks in the course of a multi-step operation that involves multiple close_thread_tables() or close_tables_for_reopen(). On the same token, move statement commit outside close_thread_tables(). Other cleanups: Cleanup COM_FIELD_LIST. Don't call close_thread_tables() in COM_SHUTDOWN -- there are no open tables there that can be closed (we leave the locked tables mode in THD destructor, and this close_thread_tables() won't leave it anyway). Make open_and_lock_tables() and open_and_lock_tables_derived() call close_thread_tables() upon failure. Remove the calls to close_thread_tables() that are now unnecessary. Simplify the back off condition in Open_table_context. Streamline metadata lock handling in LOCK TABLES implementation. Add asserts to ensure correct life cycle of statement transaction in a session. Remove a piece of dead code that has also become redundant after the fix for Bug 37521. mysql-test/r/variables.result: Update results: set @@autocommit and statement transaction/ prelocked mode. mysql-test/r/view.result: A harmless change in CHECK TABLE <view> status for a broken view. If previously a failure to prelock all functions used in a view would leave the connection in LTM_PRELOCKED mode, now we call close_thread_tables() from open_and_lock_tables() and leave prelocked mode, thus some check in mysql_admin_table() that works only in prelocked/locked tables mode is no longer activated. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Fixed Bug#55452 "SET PASSWORD is replicated twice in RBR mode": extra binlog events are gone from the binary log. mysql-test/t/variables.test: Add a test case: set autocommit and statement transaction/prelocked mode. sql/event_data_objects.cc: Simplify code in Event_job_data::execute(). Move sp_head memory management to lex_end(). sql/event_db_repository.cc: Move the release of metadata locks outside close_thread_tables(). Make sure we call close_thread_tables() when open_and_lock_tables() fails and remove extra code from the events data dictionary. Use close_mysql_tables(), a new internal function to properly close mysql.* tables in the data dictionary. Contract Event_db_repository::drop_events_by_field, drop_schema_events into one function. When dropping all events in a schema, make sure we don't mistakenly release all locks acquired by DROP DATABASE. These include locks on the database name and the global intention exclusive metadata lock. sql/event_db_repository.h: Function open_event_table() does not require an instance of Event_db_repository. sql/events.cc: Use close_mysql_tables() instead of close_thread_tables() to bootstrap events, since the latter no longer releases metadata locks. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 no longer releases acquired metadata locks. Do it in the caller. sql/ha_ndbcluster_binlog.cc: Deploy the new protocol for closing thread tables in run_query() and ndb_binlog_index code. sql/handler.cc: Assert that we never call ha_commit_trans/ ha_rollback_trans in sub-statement, which is now the case. sql/handler.h: Add an accessor to check whether THD_TRANS object is empty (has no transaction started). sql/log.cc: Update a comment. sql/log_event.cc: Since now we commit/rollback statement transaction in mysql_execute_command(), we need a mechanism to communicate from Query_log_event::do_apply_event() to mysql_execute_command() that the statement transaction should be rolled back, not committed. Ideally it would be a virtual method of THD. I hesitate to make THD a virtual base class in this already large patch. Use a thd->variables.option_bits for now. Remove a call to close_thread_tables() from the slave IO thread. It doesn't open any tables, and the protocol for closing thread tables is more complicated now. Make sure we properly close thread tables, however, in Load_data_log_event, which doesn't follow the standard server execution procedure with mysql_execute_command(). @todo: this piece should use Server_runnable framework instead. Remove an unnecessary call to mysql_unlock_tables(). sql/rpl_rli.cc: Update Relay_log_info::slave_close_thread_tables() to follow the new close protocol. sql/set_var.cc: Remove an unused header. sql/slave.cc: Remove an unnecessary call to close_thread_tables(). sql/sp.cc: Remove unnecessary calls to close_thread_tables() from SP DDL implementation. The tables will be closed by the caller, in mysql_execute_command(). When dropping all routines in a database, make sure to not mistakenly drop all metadata locks acquired so far, they include the scoped lock on the schema. sql/sp_head.cc: Correct the protocol that closes thread tables in an SP instruction. Clear lex->sphead before cleaning up lex with lex_end to make sure that we don't delete the sphead twice. It's considered to be "cleaner" and more in line with future changes than calling delete lex->sphead in other places that cleanup the lex. sql/sp_head.h: When destroying m_lex_keeper of an instruction, don't delete the sphead that all lex objects share. @todo: don't store a reference to routine's sp_head instance in instruction's lex. sql/sql_acl.cc: Don't call close_thread_tables() where the caller will do that for us. Fix Bug#55452 "SET PASSWORD is replicated twice in RBR mode" by disabling RBR replication in change_password() function. Use close_mysql_tables() in bootstrap and ACL reload code to make sure we release all metadata locks. sql/sql_base.cc: This is the main part of the patch: - remove manipulation with thd->transaction and thd->mdl_context from close_thread_tables(). Now this function is only responsible for closing tables, nothing else. This is necessary to be able to easily use close_thread_tables() in procedures, that involve multiple open/close tables, which all need to be protected continuously by metadata locks. Add asserts ensuring that TABLE object is only used when is protected by a metadata lock. Simplify the back off condition of Open_table_context, we no longer need to look at the autocommit mode. Make open_and_lock_tables() and open_normal_and_derived_tables() close thread tables and release metadata locks acquired so-far upon failure. This simplifies their usage. Implement close_mysql_tables(). sql/sql_base.h: Add declaration for close_mysql_tables(). sql/sql_class.cc: Remove a piece of dead code that has also become redundant after the fix for Bug 37521. The code became dead when my_eof() was made a non-protocol method, but a method that merely modifies the diagnostics area. The code became redundant with the fix for Bug#37521, when we started to cal close_thread_tables() before Protocol::end_statement(). sql/sql_do.cc: Do nothing in DO if inside a substatement (the assert moved out of trans_rollback_stmt). sql/sql_handler.cc: Add comments. sql/sql_insert.cc: Remove dead code. Release metadata locks explicitly at the end of the delayed insert thread. sql/sql_lex.cc: Add destruction of lex->sphead to lex_end(), lex "reset" method called at the end of each statement. sql/sql_parse.cc: Move close_thread_tables() and other related cleanups to mysql_execute_command() from dispatch_command(). This has become possible after the fix for Bug#37521. Mark federated SERVER statements as DDL. Next step: make sure that we don't store eof packet in the query cache, and move the query cache code outside mysql_parse. Brush up the code of COM_FIELD_LIST. Remove unnecessary calls to close_thread_tables(). When killing a query, don't report "OK" if it was a suicide. sql/sql_parse.h: Remove declaration of a function that is now static. sql/sql_partition.cc: Remove an unnecessary call to close_thread_tables(). sql/sql_plugin.cc: open_and_lock_tables() will clean up after itself after a failure. Move close_thread_tables() above end: label, and replace with close_mysql_tables(), which will also release the metadata lock on mysql.plugin. sql/sql_prepare.cc: Now that we no longer release locks in close_thread_tables() statement prepare code has become more straightforward. Remove the now redundant check for thd->killed() (used only by the backup project) from Execute_server_runnable. Reorder code to take into account that now mysql_execute_command() performs lex->unit.cleanup() and close_thread_tables(). sql/sql_priv.h: Add a new option to server options to interact between the slave SQL thread and execution framework (hack). @todo: use a virtual method of class THD instead. sql/sql_servers.cc: Due to Bug 25705 replication of DROP/CREATE/ALTER SERVER is broken. Make sure at least we do not attempt to replicate these statements using RBR, as this violates the assert in close_mysql_tables(). sql/sql_table.cc: Do not release metadata locks in mysql_rm_table_part2, this is done by the caller. Do not call close_thread_tables() in mysql_create_table(), this is done by the caller. Fix a bug in DROP TABLE under LOCK TABLES when, upon error in wait_while_table_is_used() we would mistakenly release the metadata lock on a non-dropped table. Explicitly release metadata locks when doing an implicit commit. sql/sql_trigger.cc: Now that we delete lex->sphead in lex_end(), zero the trigger's sphead in lex after loading the trigger, to avoid double deletion. sql/sql_udf.cc: Use close_mysql_tables() instead of close_thread_tables(). sql/sys_vars.cc: Remove code added in scope of WL#4284 which would break when we perform set @@session.autocommit along with setting other variables and using tables or functions. A test case added to variables.test. sql/transaction.cc: Add asserts. sql/tztime.cc: Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 12:25:53 +02:00
close_mysql_tables(thd);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
}
/* Check mysql.user */
tables.init_one_table("mysql", 5, "user", 4, "user", TL_READ);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
if (open_and_lock_tables(thd, &tables, FALSE, MYSQL_LOCK_IGNORE_TIMEOUT))
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
{
ret= 1;
sql_print_error("Cannot open mysql.user");
}
else
{
if (tables.table->s->fields < event_priv_column_position ||
strncmp(tables.table->field[event_priv_column_position]->field_name,
STRING_WITH_LEN("Event_priv")))
{
sql_print_error("mysql.user has no `Event_priv` column at position %d",
event_priv_column_position);
ret= 1;
}
A pre-requisite patch for the fix for Bug#52044. This patch also fixes Bug#55452 "SET PASSWORD is replicated twice in RBR mode". The goal of this patch is to remove the release of metadata locks from close_thread_tables(). This is necessary to not mistakenly release the locks in the course of a multi-step operation that involves multiple close_thread_tables() or close_tables_for_reopen(). On the same token, move statement commit outside close_thread_tables(). Other cleanups: Cleanup COM_FIELD_LIST. Don't call close_thread_tables() in COM_SHUTDOWN -- there are no open tables there that can be closed (we leave the locked tables mode in THD destructor, and this close_thread_tables() won't leave it anyway). Make open_and_lock_tables() and open_and_lock_tables_derived() call close_thread_tables() upon failure. Remove the calls to close_thread_tables() that are now unnecessary. Simplify the back off condition in Open_table_context. Streamline metadata lock handling in LOCK TABLES implementation. Add asserts to ensure correct life cycle of statement transaction in a session. Remove a piece of dead code that has also become redundant after the fix for Bug 37521. mysql-test/r/variables.result: Update results: set @@autocommit and statement transaction/ prelocked mode. mysql-test/r/view.result: A harmless change in CHECK TABLE <view> status for a broken view. If previously a failure to prelock all functions used in a view would leave the connection in LTM_PRELOCKED mode, now we call close_thread_tables() from open_and_lock_tables() and leave prelocked mode, thus some check in mysql_admin_table() that works only in prelocked/locked tables mode is no longer activated. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Fixed Bug#55452 "SET PASSWORD is replicated twice in RBR mode": extra binlog events are gone from the binary log. mysql-test/t/variables.test: Add a test case: set autocommit and statement transaction/prelocked mode. sql/event_data_objects.cc: Simplify code in Event_job_data::execute(). Move sp_head memory management to lex_end(). sql/event_db_repository.cc: Move the release of metadata locks outside close_thread_tables(). Make sure we call close_thread_tables() when open_and_lock_tables() fails and remove extra code from the events data dictionary. Use close_mysql_tables(), a new internal function to properly close mysql.* tables in the data dictionary. Contract Event_db_repository::drop_events_by_field, drop_schema_events into one function. When dropping all events in a schema, make sure we don't mistakenly release all locks acquired by DROP DATABASE. These include locks on the database name and the global intention exclusive metadata lock. sql/event_db_repository.h: Function open_event_table() does not require an instance of Event_db_repository. sql/events.cc: Use close_mysql_tables() instead of close_thread_tables() to bootstrap events, since the latter no longer releases metadata locks. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 no longer releases acquired metadata locks. Do it in the caller. sql/ha_ndbcluster_binlog.cc: Deploy the new protocol for closing thread tables in run_query() and ndb_binlog_index code. sql/handler.cc: Assert that we never call ha_commit_trans/ ha_rollback_trans in sub-statement, which is now the case. sql/handler.h: Add an accessor to check whether THD_TRANS object is empty (has no transaction started). sql/log.cc: Update a comment. sql/log_event.cc: Since now we commit/rollback statement transaction in mysql_execute_command(), we need a mechanism to communicate from Query_log_event::do_apply_event() to mysql_execute_command() that the statement transaction should be rolled back, not committed. Ideally it would be a virtual method of THD. I hesitate to make THD a virtual base class in this already large patch. Use a thd->variables.option_bits for now. Remove a call to close_thread_tables() from the slave IO thread. It doesn't open any tables, and the protocol for closing thread tables is more complicated now. Make sure we properly close thread tables, however, in Load_data_log_event, which doesn't follow the standard server execution procedure with mysql_execute_command(). @todo: this piece should use Server_runnable framework instead. Remove an unnecessary call to mysql_unlock_tables(). sql/rpl_rli.cc: Update Relay_log_info::slave_close_thread_tables() to follow the new close protocol. sql/set_var.cc: Remove an unused header. sql/slave.cc: Remove an unnecessary call to close_thread_tables(). sql/sp.cc: Remove unnecessary calls to close_thread_tables() from SP DDL implementation. The tables will be closed by the caller, in mysql_execute_command(). When dropping all routines in a database, make sure to not mistakenly drop all metadata locks acquired so far, they include the scoped lock on the schema. sql/sp_head.cc: Correct the protocol that closes thread tables in an SP instruction. Clear lex->sphead before cleaning up lex with lex_end to make sure that we don't delete the sphead twice. It's considered to be "cleaner" and more in line with future changes than calling delete lex->sphead in other places that cleanup the lex. sql/sp_head.h: When destroying m_lex_keeper of an instruction, don't delete the sphead that all lex objects share. @todo: don't store a reference to routine's sp_head instance in instruction's lex. sql/sql_acl.cc: Don't call close_thread_tables() where the caller will do that for us. Fix Bug#55452 "SET PASSWORD is replicated twice in RBR mode" by disabling RBR replication in change_password() function. Use close_mysql_tables() in bootstrap and ACL reload code to make sure we release all metadata locks. sql/sql_base.cc: This is the main part of the patch: - remove manipulation with thd->transaction and thd->mdl_context from close_thread_tables(). Now this function is only responsible for closing tables, nothing else. This is necessary to be able to easily use close_thread_tables() in procedures, that involve multiple open/close tables, which all need to be protected continuously by metadata locks. Add asserts ensuring that TABLE object is only used when is protected by a metadata lock. Simplify the back off condition of Open_table_context, we no longer need to look at the autocommit mode. Make open_and_lock_tables() and open_normal_and_derived_tables() close thread tables and release metadata locks acquired so-far upon failure. This simplifies their usage. Implement close_mysql_tables(). sql/sql_base.h: Add declaration for close_mysql_tables(). sql/sql_class.cc: Remove a piece of dead code that has also become redundant after the fix for Bug 37521. The code became dead when my_eof() was made a non-protocol method, but a method that merely modifies the diagnostics area. The code became redundant with the fix for Bug#37521, when we started to cal close_thread_tables() before Protocol::end_statement(). sql/sql_do.cc: Do nothing in DO if inside a substatement (the assert moved out of trans_rollback_stmt). sql/sql_handler.cc: Add comments. sql/sql_insert.cc: Remove dead code. Release metadata locks explicitly at the end of the delayed insert thread. sql/sql_lex.cc: Add destruction of lex->sphead to lex_end(), lex "reset" method called at the end of each statement. sql/sql_parse.cc: Move close_thread_tables() and other related cleanups to mysql_execute_command() from dispatch_command(). This has become possible after the fix for Bug#37521. Mark federated SERVER statements as DDL. Next step: make sure that we don't store eof packet in the query cache, and move the query cache code outside mysql_parse. Brush up the code of COM_FIELD_LIST. Remove unnecessary calls to close_thread_tables(). When killing a query, don't report "OK" if it was a suicide. sql/sql_parse.h: Remove declaration of a function that is now static. sql/sql_partition.cc: Remove an unnecessary call to close_thread_tables(). sql/sql_plugin.cc: open_and_lock_tables() will clean up after itself after a failure. Move close_thread_tables() above end: label, and replace with close_mysql_tables(), which will also release the metadata lock on mysql.plugin. sql/sql_prepare.cc: Now that we no longer release locks in close_thread_tables() statement prepare code has become more straightforward. Remove the now redundant check for thd->killed() (used only by the backup project) from Execute_server_runnable. Reorder code to take into account that now mysql_execute_command() performs lex->unit.cleanup() and close_thread_tables(). sql/sql_priv.h: Add a new option to server options to interact between the slave SQL thread and execution framework (hack). @todo: use a virtual method of class THD instead. sql/sql_servers.cc: Due to Bug 25705 replication of DROP/CREATE/ALTER SERVER is broken. Make sure at least we do not attempt to replicate these statements using RBR, as this violates the assert in close_mysql_tables(). sql/sql_table.cc: Do not release metadata locks in mysql_rm_table_part2, this is done by the caller. Do not call close_thread_tables() in mysql_create_table(), this is done by the caller. Fix a bug in DROP TABLE under LOCK TABLES when, upon error in wait_while_table_is_used() we would mistakenly release the metadata lock on a non-dropped table. Explicitly release metadata locks when doing an implicit commit. sql/sql_trigger.cc: Now that we delete lex->sphead in lex_end(), zero the trigger's sphead in lex after loading the trigger, to avoid double deletion. sql/sql_udf.cc: Use close_mysql_tables() instead of close_thread_tables(). sql/sys_vars.cc: Remove code added in scope of WL#4284 which would break when we perform set @@session.autocommit along with setting other variables and using tables or functions. A test case added to variables.test. sql/transaction.cc: Add asserts. sql/tztime.cc: Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 12:25:53 +02:00
close_mysql_tables(thd);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
}
/* Check mysql.event */
tables.init_one_table("mysql", 5, "event", 5, "event", TL_READ);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
if (open_and_lock_tables(thd, &tables, FALSE, MYSQL_LOCK_IGNORE_TIMEOUT))
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
{
ret= 1;
sql_print_error("Cannot open mysql.event");
}
else
{
if (table_intact.check(tables.table, &event_table_def))
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
ret= 1;
A pre-requisite patch for the fix for Bug#52044. This patch also fixes Bug#55452 "SET PASSWORD is replicated twice in RBR mode". The goal of this patch is to remove the release of metadata locks from close_thread_tables(). This is necessary to not mistakenly release the locks in the course of a multi-step operation that involves multiple close_thread_tables() or close_tables_for_reopen(). On the same token, move statement commit outside close_thread_tables(). Other cleanups: Cleanup COM_FIELD_LIST. Don't call close_thread_tables() in COM_SHUTDOWN -- there are no open tables there that can be closed (we leave the locked tables mode in THD destructor, and this close_thread_tables() won't leave it anyway). Make open_and_lock_tables() and open_and_lock_tables_derived() call close_thread_tables() upon failure. Remove the calls to close_thread_tables() that are now unnecessary. Simplify the back off condition in Open_table_context. Streamline metadata lock handling in LOCK TABLES implementation. Add asserts to ensure correct life cycle of statement transaction in a session. Remove a piece of dead code that has also become redundant after the fix for Bug 37521. mysql-test/r/variables.result: Update results: set @@autocommit and statement transaction/ prelocked mode. mysql-test/r/view.result: A harmless change in CHECK TABLE <view> status for a broken view. If previously a failure to prelock all functions used in a view would leave the connection in LTM_PRELOCKED mode, now we call close_thread_tables() from open_and_lock_tables() and leave prelocked mode, thus some check in mysql_admin_table() that works only in prelocked/locked tables mode is no longer activated. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Fixed Bug#55452 "SET PASSWORD is replicated twice in RBR mode": extra binlog events are gone from the binary log. mysql-test/t/variables.test: Add a test case: set autocommit and statement transaction/prelocked mode. sql/event_data_objects.cc: Simplify code in Event_job_data::execute(). Move sp_head memory management to lex_end(). sql/event_db_repository.cc: Move the release of metadata locks outside close_thread_tables(). Make sure we call close_thread_tables() when open_and_lock_tables() fails and remove extra code from the events data dictionary. Use close_mysql_tables(), a new internal function to properly close mysql.* tables in the data dictionary. Contract Event_db_repository::drop_events_by_field, drop_schema_events into one function. When dropping all events in a schema, make sure we don't mistakenly release all locks acquired by DROP DATABASE. These include locks on the database name and the global intention exclusive metadata lock. sql/event_db_repository.h: Function open_event_table() does not require an instance of Event_db_repository. sql/events.cc: Use close_mysql_tables() instead of close_thread_tables() to bootstrap events, since the latter no longer releases metadata locks. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 no longer releases acquired metadata locks. Do it in the caller. sql/ha_ndbcluster_binlog.cc: Deploy the new protocol for closing thread tables in run_query() and ndb_binlog_index code. sql/handler.cc: Assert that we never call ha_commit_trans/ ha_rollback_trans in sub-statement, which is now the case. sql/handler.h: Add an accessor to check whether THD_TRANS object is empty (has no transaction started). sql/log.cc: Update a comment. sql/log_event.cc: Since now we commit/rollback statement transaction in mysql_execute_command(), we need a mechanism to communicate from Query_log_event::do_apply_event() to mysql_execute_command() that the statement transaction should be rolled back, not committed. Ideally it would be a virtual method of THD. I hesitate to make THD a virtual base class in this already large patch. Use a thd->variables.option_bits for now. Remove a call to close_thread_tables() from the slave IO thread. It doesn't open any tables, and the protocol for closing thread tables is more complicated now. Make sure we properly close thread tables, however, in Load_data_log_event, which doesn't follow the standard server execution procedure with mysql_execute_command(). @todo: this piece should use Server_runnable framework instead. Remove an unnecessary call to mysql_unlock_tables(). sql/rpl_rli.cc: Update Relay_log_info::slave_close_thread_tables() to follow the new close protocol. sql/set_var.cc: Remove an unused header. sql/slave.cc: Remove an unnecessary call to close_thread_tables(). sql/sp.cc: Remove unnecessary calls to close_thread_tables() from SP DDL implementation. The tables will be closed by the caller, in mysql_execute_command(). When dropping all routines in a database, make sure to not mistakenly drop all metadata locks acquired so far, they include the scoped lock on the schema. sql/sp_head.cc: Correct the protocol that closes thread tables in an SP instruction. Clear lex->sphead before cleaning up lex with lex_end to make sure that we don't delete the sphead twice. It's considered to be "cleaner" and more in line with future changes than calling delete lex->sphead in other places that cleanup the lex. sql/sp_head.h: When destroying m_lex_keeper of an instruction, don't delete the sphead that all lex objects share. @todo: don't store a reference to routine's sp_head instance in instruction's lex. sql/sql_acl.cc: Don't call close_thread_tables() where the caller will do that for us. Fix Bug#55452 "SET PASSWORD is replicated twice in RBR mode" by disabling RBR replication in change_password() function. Use close_mysql_tables() in bootstrap and ACL reload code to make sure we release all metadata locks. sql/sql_base.cc: This is the main part of the patch: - remove manipulation with thd->transaction and thd->mdl_context from close_thread_tables(). Now this function is only responsible for closing tables, nothing else. This is necessary to be able to easily use close_thread_tables() in procedures, that involve multiple open/close tables, which all need to be protected continuously by metadata locks. Add asserts ensuring that TABLE object is only used when is protected by a metadata lock. Simplify the back off condition of Open_table_context, we no longer need to look at the autocommit mode. Make open_and_lock_tables() and open_normal_and_derived_tables() close thread tables and release metadata locks acquired so-far upon failure. This simplifies their usage. Implement close_mysql_tables(). sql/sql_base.h: Add declaration for close_mysql_tables(). sql/sql_class.cc: Remove a piece of dead code that has also become redundant after the fix for Bug 37521. The code became dead when my_eof() was made a non-protocol method, but a method that merely modifies the diagnostics area. The code became redundant with the fix for Bug#37521, when we started to cal close_thread_tables() before Protocol::end_statement(). sql/sql_do.cc: Do nothing in DO if inside a substatement (the assert moved out of trans_rollback_stmt). sql/sql_handler.cc: Add comments. sql/sql_insert.cc: Remove dead code. Release metadata locks explicitly at the end of the delayed insert thread. sql/sql_lex.cc: Add destruction of lex->sphead to lex_end(), lex "reset" method called at the end of each statement. sql/sql_parse.cc: Move close_thread_tables() and other related cleanups to mysql_execute_command() from dispatch_command(). This has become possible after the fix for Bug#37521. Mark federated SERVER statements as DDL. Next step: make sure that we don't store eof packet in the query cache, and move the query cache code outside mysql_parse. Brush up the code of COM_FIELD_LIST. Remove unnecessary calls to close_thread_tables(). When killing a query, don't report "OK" if it was a suicide. sql/sql_parse.h: Remove declaration of a function that is now static. sql/sql_partition.cc: Remove an unnecessary call to close_thread_tables(). sql/sql_plugin.cc: open_and_lock_tables() will clean up after itself after a failure. Move close_thread_tables() above end: label, and replace with close_mysql_tables(), which will also release the metadata lock on mysql.plugin. sql/sql_prepare.cc: Now that we no longer release locks in close_thread_tables() statement prepare code has become more straightforward. Remove the now redundant check for thd->killed() (used only by the backup project) from Execute_server_runnable. Reorder code to take into account that now mysql_execute_command() performs lex->unit.cleanup() and close_thread_tables(). sql/sql_priv.h: Add a new option to server options to interact between the slave SQL thread and execution framework (hack). @todo: use a virtual method of class THD instead. sql/sql_servers.cc: Due to Bug 25705 replication of DROP/CREATE/ALTER SERVER is broken. Make sure at least we do not attempt to replicate these statements using RBR, as this violates the assert in close_mysql_tables(). sql/sql_table.cc: Do not release metadata locks in mysql_rm_table_part2, this is done by the caller. Do not call close_thread_tables() in mysql_create_table(), this is done by the caller. Fix a bug in DROP TABLE under LOCK TABLES when, upon error in wait_while_table_is_used() we would mistakenly release the metadata lock on a non-dropped table. Explicitly release metadata locks when doing an implicit commit. sql/sql_trigger.cc: Now that we delete lex->sphead in lex_end(), zero the trigger's sphead in lex after loading the trigger, to avoid double deletion. sql/sql_udf.cc: Use close_mysql_tables() instead of close_thread_tables(). sql/sys_vars.cc: Remove code added in scope of WL#4284 which would break when we perform set @@session.autocommit along with setting other variables and using tables or functions. A test case added to variables.test. sql/transaction.cc: Add asserts. sql/tztime.cc: Use close_mysql_tables() rather than close_thread_tables().
2010-07-27 12:25:53 +02:00
close_mysql_tables(thd);
A set of changes aiming to make the Event Scheduler more user-friendly when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
2007-04-05 13:24:34 +02:00
}
DBUG_RETURN(MY_TEST(ret));
WL#3337 (Event scheduler new architecture) Cleaned up the code a bit. Fixed few leaks. This code still does not load events on server startup from disk. The problem is that there is a need for a THD instance, which does not exist during server boot. This will be solved soon. Still Event_timed is used both for the memory queue and for exectution. This will be changed according to WL#3337 probably in the next commit. sql/event_data_objects.cc: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_data_objects.h: Strip unneeded stuff from class Event_timed Event_timed is still used for the queue and execution. That will be changed in the next commit. sql/event_db_repository.cc: Cosmetics. Add a new method load_named_event_job, to be made complete in the next commit. It will load from disk an instance of Event_job_data to be used during execution. sql/event_db_repository.h: find_event does not need MEM_ROOT anymore because the memory is allocated on Event's own root. sql/event_queue.cc: Remove dead code. Move dumping of the queue to separate method. Make critical sections in create_event & update_event as small as possible - load the new event outside of the section and free the object also outside of it. sql/event_queue.h: init -> init_queue -> easier for ctags deinit -> deinit_queue -> easier for ctags sql/event_scheduler.cc: empty this file sql/event_scheduler.h: empty this file sql/event_scheduler_ng.cc: add back DBUG_RETURN(0) in thread handlers. We don't stop running events when stopping the scheduler. Therefore remove this method now. If it is needed later it can be added back. sql/event_scheduler_ng.h: Remove stop_all_running_threads() init -> init_scheduler deinit -> deinit_scheduler easier for ctags sql/events.cc: Cosmetics sql/events.h: Cosmetics sql/set_var.cc: Remove references to dead code sql/sql_parse.cc: Reorganize a bit.
2006-07-05 17:12:50 +02:00
}
/**
@} (End of group Event_Scheduler)
*/