Commit graph

1720 commits

Author SHA1 Message Date
Vicențiu Ciorbaru
66744f4540 Merge branch '5.5' into 10.0 2017-01-14 19:59:34 +02:00
Sergei Golubchik
0d1d0d77f2 MDEV-11706 Assertion `is_stat_field || !table || (!table->write_set || bitmap_is_set(table->write_set, field_index) || (table->vcol_set && bitmap_is_set(table->vcol_set, field_index)))' failed in Field_time::store_TIME_with_warning
vcols and triggers. Revert 094f4cf778,
backport the correct fix (Table_triggers_list::mark_fields_used() not
marking vcols) from 10.2.
2017-01-11 20:24:40 +01:00
Monty
6f31dd093a Added new status variables to make it easier to debug certain problems:
- Handler_read_retry
- Update_scan
- Delete_scan
2016-08-21 20:18:39 +03:00
Oleksandr Byelkin
911af69d1e MDEV-5973: MySQL Bug#11757486:49539: NON-DESCRIPTIVE ERR (ERROR 0 FROM STORAGE ENGINE) WITH MULTI-TABLE UPDATE
Condition in processing IGNORE clause for UPDATE & multi-table UPDATE made the same.
2016-06-21 18:48:14 +02:00
Sergei Golubchik
872649c7ba Merge branch '5.5' into 10.0 2016-04-26 23:05:26 +02:00
Sergei Golubchik
24ac546d0f use consistent error messaging for IGNORE
1. the same message text for INSERT and INSERT IGNORE
2. no new warnings in UPDATE IGNORE yet (big change for 5.5)

and replace a commonly used expression with a
named constant
2016-04-20 18:27:23 +02:00
Sergei Golubchik
b069d19284 Merge branch 'mysql/5.5' into 5.5 2016-04-20 15:25:55 +02:00
Otto Kekäläinen
1777fd5f55 Fix spelling: occurred, execute, which etc 2016-03-04 02:09:37 +02:00
Sergei Golubchik
271fed4106 Merge branch '5.5' into 10.0 2016-02-15 22:50:59 +01:00
Nisha Gopalakrishnan
d9c541cb1b BUG#22037930: INSERT IGNORE FAILS TO IGNORE FOREIGN KEY
CONSTRAINT.

Analysis
=======

INSERT and UPDATE operations using the IGNORE keyword which
causes FOREIGN KEY constraint violations reports an error
despite using the IGNORE keyword.

Foreign key violation errors were not ignored and reported
as errors instead of warnings even when IGNORE was set.

Fix
===
Added code to ignore the foreign key violation errors and
report them as warnings when the IGNORE keyword is used.
2016-02-11 14:20:50 +05:30
Oleksandr Byelkin
9f3b53fb4a MDEV-9093 Persistent computed column is not updated when update query contains join
added lost virtual fields update call
2016-02-05 16:32:12 +01:00
Oleksandr Byelkin
c88ca2c227 MDEV-8701 Crash on derived query
MDEV-8938 Server Crash on Update with joins

Make unique table check after setup_fields of update because unique table can materialize table and we do not need field resolving after materialization.
2015-11-06 17:56:56 +01:00
Oleksandr Byelkin
5041de97e1 MDEV-8701 Crash on derived query
Make unique table check after setup_fields of update because unique table can materialize table and we do not need field resolving after materialization.
2015-11-05 17:50:59 +01:00
Sergei Golubchik
fb8713385f remove unneded #include's that had a dubious explanation 2015-10-24 19:58:34 +02:00
Monty
d546d1cc13 Fixed MDEV-8408
Assertion `inited==INDEX' failed in int handler::ha_index_first(uchar*)

The crash was because errors from init_read_record_idx() was not taken care of.
2015-10-23 18:49:02 +03:00
Sergei Petrunia
c4456b99b3 MDEV-7971: Assertion `name != __null' failed in ACL_internal_schema_registry::lookup...
[Attempt #] Make the code that handles "Prepare" phase for multi-table
UPDATE statements handle non-merged semijoins. It can encounter them when
a prepared statement is executed for the second time.
2015-07-30 14:02:44 +03:00
Sergei Golubchik
49c853fb94 Merge branch '5.5' into 10.0 2015-05-04 22:00:24 +02:00
Oleksandr Byelkin
8cbaafd22b MDEV-8018: main.multi_update fails with --ps-protocol
save_prep_leaf_tables() made recursive to work with underlying view

Arena restoiring fixed in case of EOM.
2015-04-22 13:59:18 +02:00
Sergei Golubchik
912bbfda12 MDEV-7144 Warnings "bytes lost" during server shutdown after running connect.part_file test in buildbot 2014-11-22 11:56:29 +01:00
Sergei Golubchik
6a2c170141 MDEV-6849 ON UPDATE CURRENT_TIMESTAMP doesn't always work
reset default fields not for every modified row, but only once,
at the beginning, as the set of modified fields doesn't change.

exception: INSERT ... ON DUPLICATE KEY UPDATE - the set of fields
does change per row and in that case we reset default fields per row.
2014-11-13 13:40:11 +01:00
Sergei Golubchik
815667086c sql_update.cc: always update default fields *after* compare_record()
(it was *after* in two cases and *before* in one case)
2014-11-11 10:39:35 +01:00
Michael Widenius
70823e1d91 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 20:31:14 +03:00
Sergei Golubchik
8867a499f7 MDEV-6050 MySQL Bug#13036505 62540: TABLE LOCKS WITHIN STORED FUNCTIONS ARE BACK IN 5.5 WITH MIXED AND ROW BI
cherry-pick revno 4053
committer: Gopal Shankar <gopal.shankar@oracle.com>
branch nick: sf_mysql-5.6
timestamp: Fri 2012-07-20 12:25:34 +0530
message:
  Bug#13036505 62540: TABLE LOCKS WITHIN STORED FUNCTIONS ARE BACK IN
                      5.5 WITH MIXED AND ROW BI.
2014-07-31 12:03:20 +02:00
Sergei Golubchik
e27c338634 5.5.38 merge 2014-06-06 00:07:27 +02:00
unknown
55bfabf971 MDEV-6163: Error while executing an update query that has the same table in a sub-query
We have to run the derived table prepare before the unique table check to mark the derived table (in this case the unique table check can turn that table to materialized one).
2014-06-04 10:10:19 +03:00
Sergei Golubchik
d3e2e1243b 5.5 merge 2014-05-09 12:35:11 +02:00
unknown
45a91d8cbb MDEV-6193: Problems with multi-table updates that JOIN against read-only table
All underlying tables should share the same lock type.
2014-05-08 22:56:36 +03:00
Sergei Golubchik
0e05dc81b3 rename handler::ha_set_lock_type() -> handler::set_lock_type(),
because it's not a handler convenience wrapper
2014-04-28 11:11:16 +02:00
Igor Babaev
12eb6d88f7 Fixed the problem of mdev-5970:
back-ported the patch for bug #13256831 from mysql-5.6 code line.

  Here's the comment this patch was provided with:

  Fixed bug#13256831 - ERROR 1032 (HY000): CAN'T FIND RECORD.

  This bug only occurs if a user tries to update a base table using
  an updatable view and this view was created as a join for which
  the clause 'WITH CHECK OPTION' was specified.

  The reason for the bug was that when such an update was
  executed, row positions were not properly handled for tables
  that were not updated but had constraints that had to be
  checked due to the 'WITH CHECK OPTION' clause.

  The reason for the bug was that when such update is executed
  then for tables specified in the view definition and
  also listed in the 'WITH CHECK OPTION' clause the positioning to
  row being updated is not performed.
2014-04-17 12:53:53 -07:00
Michael Widenius
4cc3fd48f6 MDEV-5876: MySQL bug #11766767 - "59957: VIEW USING MERGE PERMISSIONS IN MULTI-TABLE UPDATE"
Backported multi_update_check_table_access() from 5.6

The code is slightly different in MariaDB, becasue we instansiate fields in merged tables earlier.

mysql-test/mysql-test-run.pl:
  Fixed comment
mysql-test/r/view_grant.result:
  Merged test case from 5.6
mysql-test/t/view_grant.test:
  Merged test case from 5.6
sql/sql_parse.cc:
  Reset orig_want_privilege as this will be rechecked later.
  If not, we will have a problem in mysql_multi_update_prepare() for the call to mysql_handle_derived()
sql/sql_update.cc:
  Backport multi_update_check_table_access() from 5.6
2014-03-24 08:18:01 +02:00
Sergei Golubchik
e29a4dd519 MDEV-5433 select_result::send_error() is unused
remove dead code
2014-03-26 22:32:20 +01:00
unknown
af3180ab6f MDEV-9095: Executing triggers on slave in row-based replication 2014-03-19 11:00:56 +02:00
Sergey Petrunya
07a52afd00 MDEV-4410: update does not want to use a covering index, but select uses it
- If an UPDATE 1) modifies the key it is using, and 2) has ORDER BY ... LIMIT
  which matches the key it is using,  Then we should use "Using buffer", not
  "Using filesort".
2014-03-16 14:33:37 +01:00
unknown
968f4d4e25 MDEV-6139: UPDATE w/ join against MRG_MyISAM table with read-only sub-table failsUPDATE w/ join against MRG_MyISAM table with read-only sub-table fails
The problem was that on opening all tables TL_WRITE, than local tables which is not updated set to TL_READ, but underlying tables of MyISAMmrg left untouched.

Prartition engine has not this problem.

All cases where lock_type assigned is not changed because call of virtual function is not cheap.
2014-04-28 09:13:53 +03:00
Sergey Vojtovich
d12c7adf71 MDEV-5314 - Compiling fails on OSX using clang
This is port of fix for MySQL BUG#17647863.

revno: 5572
revision-id: jon.hauglid@oracle.com-20131030232243-b0pw98oy72uka2sj
committer: Jon Olav Hauglid <jon.hauglid@oracle.com>
timestamp: Thu 2013-10-31 00:22:43 +0100
message:
  Bug#17647863: MYSQL DOES NOT COMPILE ON OSX 10.9 GM

  Rename test() macro to MY_TEST() to avoid conflict with libc++.
2014-02-19 14:05:15 +04:00
Michael Widenius
273078c5fa Fixes to get valgrind to work with jemalloc
- Added MALLOC_LIBRARY variable to hold name of malloc library
- Back ported valgrind related fixes from jemalloc 3.4.1 to the included jemalloc 3.3.1
- Renamed bitmap_init() and bitmap_free() to my_bitmap_init() and my_bitmap_free() to avoid clash with jemalloc 3.4.1
- Use option --soname-synonyms=somalloc=NON to valgrind when using jemalloc
- Show version related variables in mysqld --help
  -- Added SHOW_VALUE_IN_HELP marker

Increased back_log to 150 as the original value was a bit too small


CMakeLists.txt:
  Added MALLOC_LIBRARY variable to hold name of malloc library
cmake/jemalloc.cmake:
  Added MALLOC_LIBRARY variable to hold name of malloc library
config.h.cmake:
  Added MALLOC_LIBRARY variable to hold name of malloc library
extra/jemalloc/ChangeLog:
  Updates changelog
extra/jemalloc/include/jemalloc/internal/arena.h:
  Backported valgrind fixes from jemalloc 3.4.1
extra/jemalloc/include/jemalloc/internal/jemalloc_internal.h.in:
  Backported valgrind fixes from jemalloc 3.4.1
extra/jemalloc/include/jemalloc/internal/private_namespace.h:
  Backported valgrind fixes from jemalloc 3.4.1
extra/jemalloc/include/jemalloc/internal/tcache.h:
  Backported valgrind fixes from jemalloc 3.4.1
extra/jemalloc/src/arena.c:
  Backported valgrind fixes from jemalloc 3.4.1
include/my_bitmap.h:
  Renamed bitmap_init() and bitmap_free() to my_bitmap_init() and my_bitmap_free() to avoid clash with jemalloc 3.4.1
mysql-test/mysql-test-run.pl:
  Use option --soname-synonyms=somalloc=NON to valgrind when using jemalloc
mysql-test/valgrind.supp:
  Supression of memory leak in OpenSuse 12.3
mysys/my_bitmap.c:
  Renamed bitmap_init() and bitmap_free() to my_bitmap_init() and my_bitmap_free()
sql/ha_ndbcluster_binlog.cc:
  Renames
sql/ha_ndbcluster_cond.h:
  Renames
sql/ha_partition.cc:
  Renames
sql/handler.cc:
  Renames
sql/item_subselect.cc:
  Renames
sql/log_event.cc:
  Renames
sql/log_event_old.cc:
  Renames
sql/mysqld.cc:
  Renames
  Show version related variables in mysqld --help
sql/opt_range.cc:
  Renames
sql/opt_table_elimination.cc:
  Renames
sql/partition_info.cc:
  Renames
sql/rpl_injector.h:
  Renames
sql/set_var.h:
  Renames
sql/slave.cc:
  Renames
sql/sql_bitmap.h:
  Renames
sql/sql_insert.cc:
  Renames
sql/sql_lex.h:
  Renames
sql/sql_parse.cc:
  Renames
sql/sql_partition.cc:
  Renames
sql/sql_select.cc:
  Renames
sql/sql_show.cc:
  Renames
sql/sql_update.cc:
  Renames
sql/sys_vars.cc:
  Show version related variables in mysqld --help
sql/sys_vars.h:
  Added SHOW_VALUE_IN_HELP marker for variables that should be shown in --help
sql/table.cc:
  Renames
sql/table.h:
  Removed not used bitmap_init_value
storage/connect/ha_connect.cc:
  Removed compiler warning
storage/maria/ma_open.c:
  Renames
unittest/mysys/bitmap-t.c:
  Renames
2014-01-02 11:19:19 +02:00
Sergey Petrunya
e5d13c1567 Merge 10.0-base -> 10.0 2013-10-16 13:38:42 +04:00
Sergey Petrunya
4bed7aa858 MDEV-3798: [SHOW] EXPLAIN UPDATE/DELETE, Memory leak in binlog.binlog_base64_flag:
- It turns out, there are statements that will call lex_start(thd->lex) 
  after parsing has been finished. lex_start() will set lex->explain=NULL,
  which will lose the pointer to already allocated Explain_plan object.
- To get rid of this, switch to lazy creation of lex->explain.  Now, it is 
  created only when we get a part ot query plan.
2013-10-16 12:13:51 +04:00
Sergey Petrunya
a06170c8d8 MDEV-3798: EXPLAIN UPDATE/DELETE
- Fix a problem with EXPLAIN multi_table UPDATE: 
  = Do use multi_update object, because multi_update::prepare() does
    various setup, e.g. it disables index-only for the tables to be updated.
  = Protect multi_update::prepare() from being invoked multiple times. 
    If the query has subqueries, they may try to invoke it, for some reason.
2013-10-15 10:34:46 +04:00
Sergey Petrunya
105e3ae6c9 MDEV-3798: EXPLAIN UPDATE/DELETE
Update the SHOW EXPLAIN code to work with the 
new architecture (part#1):
Before, SHOW EXPLAIN operated on real query plan structures, 
which meant it had to check when SELECTs are created/deleted.
SELECTs would call apc_target->enable() when they got a query 
plan and disable() when their query plan was deleted.

Now, Explain data structure becomes available at once (and we
call apc_target->enable()) and then it stays until it is deleted
(when that happens, we call apc_target->disable()).
2013-10-14 20:09:33 +04:00
Sergey Petrunya
3c6ac6694d MDEV-3798: EXPLAIN UPDATE/DELETE
- Produce correct #rows for ORDER BY ... LIMIT N queries that take advantage of 
  ordered index read to read only N rows.
2013-10-09 13:07:46 +04:00
Sergey Petrunya
161d687594 MDEV-3798: EXPLAIN UPDATE/DELETE
- Generate correct contents of `Extra` column for UPDATEs/DELETEs that use quick selects
- UPDATEs with used_key_is_modified=true will show "Using buffer"
2013-10-09 09:40:33 +04:00
Sergey Petrunya
69e6a2bb22 MDEV-3798: EXPLAIN UPDATE/DELETE
- Update test results after last few csets
- Generate correct value for `possible_keys` column for single table UPDATE/DELETE.
2013-10-08 16:13:49 +04:00
Sergey Petrunya
98a8642fe8 MDEV-3798: EXPLAIN UPDATE/DELETE
- Add support for EXPLAIN INSERT.
2013-10-07 17:29:51 +04:00
Sergey Petrunya
062b7bfa39 Better comments 2013-10-05 13:48:45 +04:00
Sergey Petrunya
abcf14e595 MDEV-3798: EXPLAIN UPDATE/DELETE
- Handle the case when EXPLAIN UPDATE/DELETE has pruned away all partitions.
2013-10-05 13:44:01 +04:00
Sergey Petrunya
fedf769f0b MDEV-3798: EXPLAIN UPDATE/DELETE
- Address review feedback: rename nearly any name used by the new EXPLAIN code.
2013-10-05 09:58:22 +04:00
Sergey Petrunya
6519ca51dd EXPLAIN UPDATE/DELETE
- Make EXPLAIN UPDATE/DELETE work inside SPs
- Return correct error code from mysql_delete()
- EXPLAIN <multi-DELETE> will create a multi_delete object (as it 
  affects the optimization). select_result will be only used for 
  producing EXPLAIN output.
2013-10-01 17:49:03 +04:00
Sergey Petrunya
ae6e95c498 Code cleanup. 2013-09-17 16:03:40 +04:00
Sergey Petrunya
662bfed027 [SHOW] EXPLAIN UPDATE/DELETE, code re-structuring
- Merge with current 10.0-base
2013-08-24 00:46:49 +04:00