The --debug-no-sync incorrectly defaulted to ON, disabling sync calls
by default which can loose data or cause corruption. Also, the code
used fsync() instead of the sometimes more efficient fdatasync().
Analysis:
When the method JOIN::choose_subquery_plan() decided to apply
the IN-TO-EXISTS strategy, it set the unit and select_lex
uncacheable flag to UNCACHEABLE_DEPENDENT_INJECTED unconditionally.
As result, even if IN-TO-EXISTS injected non-correlated predicates,
the subquery was still treated as correlated.
Solution:
Set the subquery as correlated only if the injected predicate(s) depend
on the outer query.
backport dmitry.shulga@oracle.com-20120209125742-w7hdxv0103ymb8ko from mysql-trunk:
Patch for bug#11764747 (formerly known as 57612): SET GLOBAL READ_ONLY=1 cannot
progress when a table is locked with LOCK TABLES.
The reason for the bug was that mysql server makes a flush of all open tables
during handling of statement 'SET GLOBAL READ_ONLY=1'. Therefore if some of
these tables were locked by "LOCK TABLE ... READ" from a different connection,
then execution of statement 'SET GLOBAL READ_ONLY=1' would be waiting for
the lock for such table even if the table was locked in a compatible read mode.
Flushing of all open tables before setting of read_only system variable
is inherited from 5.1 implementation since this was the only possible approach
to ensure that there isn't any pending write operations on open tables.
Start from version 5.5 and above such behaviour is guaranteed by the fact
that we acquire global_read_lock before setting read_only flag. Since
acquiring of global_read_lock is successful only when there isn't any
active write operation then we can remove flushing of open tables from
processing of SET GLOBAL READ_ONLY=1.
This modification changes the server behavior so that read locks held
by other connections (LOCK TABLE ... READ) no longer will block attempts
to enable read_only.
Analysis:
The crash is a result of Item_cache_temporal::example not being set
(it is NULL). It turns out that the value of Item_cache_temporal
may be set directly by calling Item_cache_temporal::store_packed
without ever setting the "example" of this Item_cache. Therefore
the failing assertion is too narrow.
Solution:
Remove the assert.
In principle we could overwrite this method for Item_cache_temporal,
but it doesn't make sense just for this assert.
The constructor for Query_log_event allocated 2 bytes too few for
extra space needed by Query cache. (Not sure if this is reproducible
in practice, as there are often a couple of extra bytes allocated
for unused string zero terminators, but better safe than sorry).
- Fixed code that was not ready for a major version number > 9
- Fixed test cases that assumed max major version number could be 9
Updated version number for depricated options (will be removed in a later commit)
VERSION:
Version number 10.0.0
client/mysqlbinlog.cc:
Added support for major version numbers > 9
cmake/mysql_version.cmake:
Added support for version numbers that is 0
mysql-test/r/comments.result:
Modified test to handle version number 100000
mysql-test/r/func_system.result:
Modified test to handle version number 100000
mysql-test/r/log_state.result:
Updated depricated error message
mysql-test/r/sp.result:
Modified test to handle version number 100000
mysql-test/r/subselect4.result:
Updated depricated error message
mysql-test/r/variables.result:
Updated depricated error message
mysql-test/suite/rpl/r/rpl_conditional_comments.result:
Modified test to handle version number 100000
mysql-test/suite/rpl/r/rpl_loaddatalocal.result:
Modified test to handle version number 100000
mysql-test/suite/rpl/t/rpl_conditional_comments.test:
Modified test to handle version number 100000
mysql-test/suite/rpl/t/rpl_loaddatalocal.test:
Modified test to handle version number 100000
mysql-test/suite/sys_vars/r/debug_basic.result:
Updated depricated error message
mysql-test/suite/sys_vars/r/engine_condition_pushdown_basic.result:
Updated depricated error message
mysql-test/suite/sys_vars/r/log_basic.result:
Updated depricated error message
mysql-test/suite/sys_vars/r/log_slow_queries_basic.result:
Updated depricated error message
mysql-test/suite/sys_vars/r/multi_range_count_basic.result:
Updated depricated error message
mysql-test/suite/sys_vars/r/rpl_recovery_rank_basic.result:
Updated depricated error message
mysql-test/suite/sys_vars/r/sql_big_selects_func.result:
Updated depricated error message
mysql-test/suite/sys_vars/r/sql_max_join_size_basic.result:
Updated depricated error message
mysql-test/suite/sys_vars/r/sql_max_join_size_func.result:
Updated depricated error message
mysql-test/t/comments.test:
Modified test to handle version number 100000
mysql-test/t/file_contents.test:
Modified test to handle version number 100000
mysql-test/t/func_system.test:
Modified test to handle version number 100000
mysql-test/t/parser_not_embedded.test:
Modified test to handle version number 100000
mysql-test/t/sp.test:
Modified test to handle version number 100000
sql/mysqld.cc:
Updated version number for depricated options (will be removed in a later commit)
sql/slave.cc:
Modified test to handle version number 100000
Better error messages
sql/sql_lex.cc:
Modified test to handle version number 100000 in comment syntax
sql/sys_vars.cc:
Updated version number for depricated options (will be removed in a later commit)
Analysis:
When a subquery that needs a temp table is executed during
the prepare or optimize phase of the outer query, at the end
of the subquery execution all the JOIN_TABs of the subquery
are replaced by a new JOIN_TAB that selects from the temp table.
However that temp table has no corresponding TABLE_LIST.
Once EXPLAIN execution reaches its last phase, it tries to print
the names of the subquery tables through its TABLE_LISTs, but in
the case of this bug there is no such TABLE_LIST (it is NULL),
hence a crash.
Solution:
The fix is to block subquery evaluation inside
Item_func_like::fix_fields and Item_func_like::select_optimize()
using the Item::is_expensive() test.
- Adding %M my_sprintf() modifier that prints error number - system-error-text
- Modified mysys, mysql_client and SQL error messages to use %M instead of %d
- Added my_strerror()
Updated handler errors to 5.6 error numbers
Updated text for a few error messages (to match 5.6)
Increased length of command name in error output
extra/comp_err.c:
Added support for %M
include/my_base.h:
Updated handler errors to 5.6 error numbers
include/my_sys.h:
Added my_strerror()
libmysql/errmsg.c:
Updated error messages to use %M
mysql-test/r/errors.result:
Updated result as error message have changed
mysql-test/r/innodb_mysql_sync.result:
Updated result with text for errno
mysql-test/r/myisam-system.result:
Updated result with text for errno
mysql-test/r/myisam.result:
Updated result as error message have changed
mysql-test/r/myisampack.result:
Updated result with text for errno
mysql-test/r/mysql.result:
Updated result with text for errno
mysql-test/r/mysql_upgrade.result:
Updated result with text for errno
mysql-test/r/partition_datatype.result:
Updated result as error message have changed
mysql-test/r/partition_innodb_plugin.result:
Updated result with text for errno
mysql-test/r/ps_1general.result:
Updated result with text for errno
mysql-test/r/trigger.result:
Updated result with text for errno
mysql-test/r/type_bit.result:
Updated result as error message have changed
mysql-test/r/type_bit_innodb.result:
Updated result as error message have changed
mysql-test/r/type_blob.result:
Updated result as error message have changed
mysql-test/suite/archive/archive.result:
Updated result with text for errno
mysql-test/suite/binlog/r/binlog_index.result:
Updated result with text for errno
mysql-test/suite/binlog/r/binlog_ioerr.result:
Updated result with text for errno
mysql-test/suite/csv/csv.result:
Updated result with text for errno
mysql-test/suite/federated/federated_bug_35333.result:
Updated result with text for errno
mysql-test/suite/innodb/r/innodb-create-options.result:
Updated result with text for errno
mysql-test/suite/innodb/r/innodb-index.result:
Updated result with text for errno
mysql-test/suite/innodb/r/innodb-zip.result:
Updated result as error message have changed
mysql-test/suite/innodb/r/innodb.result:
Updated result with text for errno
mysql-test/suite/innodb/r/innodb_bug21704.result:
Updated result with text for errno
mysql-test/suite/innodb/r/innodb_bug46000.result:
Updated result with text for errno
mysql-test/suite/innodb/r/innodb_bug53591.result:
Updated result as error message have changed
mysql-test/suite/innodb/r/innodb_corrupt_bit.result:
New error numbers
mysql-test/suite/innodb/r/innodb_prefix_index_liftedlimit.result:
Updated result as error message have changed
mysql-test/suite/innodb/t/innodb-create-options.test:
Added regexp to avoid system error text
mysql-test/suite/innodb/t/innodb-zip.test:
Added regexp to avoid system error text
mysql-test/suite/maria/maria-recovery2.result:
Updated supression rule
mysql-test/suite/maria/maria-recovery2.test:
Updated supression rule
mysql-test/suite/maria/maria.result:
Updated result as error message have changed
mysql-test/suite/parts/r/partition_bit_innodb.result:
Updated result as error message have changed
mysql-test/suite/parts/r/partition_bit_myisam.result:
Updated result as error message have changed
mysql-test/suite/percona/percona_innodb_fake_changes.result:
Updated result with text for errno
mysql-test/suite/perfschema/r/dml_cond_instances.result:
Updated result as error message have changed
mysql-test/suite/perfschema/r/dml_events_waits_current.result:
Updated result as error message have changed
mysql-test/suite/perfschema/r/dml_events_waits_history.result:
Updated result as error message have changed
mysql-test/suite/perfschema/r/dml_events_waits_history_long.result:
Updated result as error message have changed
mysql-test/suite/perfschema/r/dml_ews_by_instance.result:
Updated result as error message have changed
mysql-test/suite/perfschema/r/dml_ews_by_thread_by_event_name.result:
Updated result as error message have changed
mysql-test/suite/perfschema/r/dml_ews_global_by_event_name.result:
Updated result as error message have changed
mysql-test/suite/perfschema/r/dml_file_instances.result:
Updated result as error message have changed
mysql-test/suite/perfschema/r/dml_file_summary_by_event_name.result:
Updated result as error message have changed
mysql-test/suite/perfschema/r/dml_file_summary_by_instance.result:
Updated result as error message have changed
mysql-test/suite/perfschema/r/dml_mutex_instances.result:
Updated result as error message have changed
mysql-test/suite/perfschema/r/dml_performance_timers.result:
Updated result as error message have changed
mysql-test/suite/perfschema/r/dml_rwlock_instances.result:
Updated result as error message have changed
mysql-test/suite/perfschema/r/dml_threads.result:
Updated result as error message have changed
mysql-test/suite/perfschema/r/misc.result:
Updated result with text for errno
mysql-test/suite/perfschema/r/privilege.result:
Updated result with text for errno
mysql-test/suite/rpl/r/rpl_EE_err.result:
Updated result with text for errno
mysql-test/suite/rpl/r/rpl_binlog_errors.result:
Updated result with text for errno
mysql-test/suite/rpl/r/rpl_drop_db.result:
Updated result with text for errno
mysys/errors.c:
Updated error messages to use %M
Changed all errors to use Errcode: consistenly
mysys/my_handler_errors.h:
Updated handler errors to 5.6 error numbers
sql/share/errmsg-utf8.txt:
Updated error messages to use %M
sql/sys_vars.cc:
Added error number to ER_EVENT_SET_VAR_ERROR
strings/my_vsnprintf.c:
Added %M my_sprintf() modifier that prints error number - system-error-text
Simplify code
Movied common code to function
Removed some casts that was not necessary when reading integer/unsigned int stored in longlong
Added my_strerror()
unittest/mysys/my_vsnprintf-t.c:
Added testing of %M
Optimizator fails using index with ST_Within(g, constant_poly).
per-file comments:
mysql-test/r/gis-rt-precise.result
test result fixed.
mysql-test/r/gis-rtree.result
test result fixed.
mysql-test/suite/maria/r/maria-gis-rtree-dynamic.result
test result fixed.
mysql-test/suite/maria/r/maria-gis-rtree-trans.result
test result fixed.
mysql-test/suite/maria/r/maria-gis-rtree.result
test result fixed.
storage/maria/ma_rt_index.c
Use MBR_INTERSECT mode when optimizing the select WITH ST_Within.
storage/myisam/rt_index.c
Use MBR_INTERSECT mode when optimizing the select WITH ST_Within.
- In JOIN::exec(), make the having->update_used_tables() call before we've
made the JOIN::cleanup(full=true) call. The latter frees SJ-Materialization
structures, which correlated subquery predicate items attempt to walk afterwards.
Analysis:
The optimizer detects an empty result through constant table optimization.
Then it calls return_zero_rows(), which in turns calls inderctly
Item_maxmin_subselect::no_rows_in_result(). The latter method set "value=0",
however "value" is pointer to Item_cache, and not just an integer value.
All of the Item_[maxmin | singlerow]_subselect::val_XXX methods does:
if (forced_const)
return value->val_real();
which of course crashes when value is a NULL pointer.
Solution:
When the optimizer discovers an empty result set, set
Item_singlerow_subselect::value to a FALSE constant Item instead of NULL.
Handle the 'set read_only=1' in lighter way, than the FLUSH TABLES READ LOCK;
For the transactional engines we don't wait for operations on that tables to finish.
per-file comments:
mysql-test/r/read_only_innodb.result
MDEV-136 Non-blocking "set read_only".
test result updated.
mysql-test/t/read_only_innodb.test
MDEV-136 Non-blocking "set read_only".
test case added.
sql/mysql_priv.h
MDEV-136 Non-blocking "set read_only".
The close_cached_tables_set_readonly() declared.
sql/set_var.cc
MDEV-136 Non-blocking "set read_only".
Call close_cached_tables_set_readonly() for the read_only::set_var.
sql/sql_base.cc
MDEV-136 Non-blocking "set read_only".
Parameters added to the close_cached_tables implementation,
close_cached_tables_set_readonly declared.
Prevent blocking on the transactional tables if the
set_readonly_mode is on.
Fixed some mtr test problems
dbug/tests.c:
Fixed compiler warnings
mysql-test/r/handlersocket.result:
Fixed that plugin_license is written
mysql-test/suite/innodb/t/innodb_bug60196.test:
Force sorted results as it was sometimes different on windows
mysql-test/suite/rpl/t/rpl_heartbeat_basic.test:
Prolong test as this failed on windows
mysql-test/t/handlersocket.test:
Fixed that plugin_license is written
plugin/handler_socket/handlersocket/handlersocket.cpp:
Use maria_declare_plugin
plugin/handler_socket/handlersocket/mysql_incl.hpp:
Fixed compiler warning
plugin/handler_socket/libhsclient/auto_addrinfo.hpp:
Fixed compiler warning
sql/handler.h:
Fixed typo
sql/sql_plugin.cc:
Fixed bug that caused plugin library name twice in error message
storage/maria/ma_checkpoint.c:
Fixed compiler warning
storage/maria/ma_loghandler.c:
Fixed compiler warning
unittest/mysys/base64-t.c:
Fixed compiler warning
unittest/mysys/bitmap-t.c:
Fixed compiler warning
unittest/mysys/my_malloc-t.c:
Fixed compiler warning
Fix is done by doing an autocommit in truncate table inside Aria
storage/maria/ha_maria.cc:
Force a commit for TRUNCATE TABLE inside lock tables
Check that we don't call TRUNCATE with concurrent inserts going on.
Make ha_maria::implict_commit faster when we don't have Aria tables in the transaction.
(Most of the patch is just re-indentation because I removed an if level)
- make make_cond_after_sjm() correctly handle OR clauses where one branch refers to the semi-join table
while the other branch refers to the non-semijoin table.
