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Commit Graph

3591 Commits

Author SHA1 Message Date
gluh@eagle.(none)
237383f0fe Merge mysql.com:/home/gluh/MySQL/Merge/5.0
into  mysql.com:/home/gluh/MySQL/Merge/5.0-opt
2007-10-23 18:51:43 +05:00
unknown
62fd471647 Merge anubis.xiphis.org:/usr/home/antony/work/mysql-5.1-engines
into  anubis.xiphis.org:/usr/home/antony/work/mysql-5.1-engines.merge


configure.in:
  Auto merged
mysql-test/r/heap_btree.result:
  Auto merged
mysql-test/r/log_tables.result:
  Auto merged
mysql-test/r/partition.result:
  Auto merged
mysql-test/r/system_mysql_db.result:
  Auto merged
mysql-test/t/heap_btree.test:
  Auto merged
mysql-test/t/log_tables.test:
  Auto merged
mysql-test/t/partition.test:
  Auto merged
mysys/my_getopt.c:
  Auto merged
scripts/mysql_system_tables.sql:
  Auto merged
sql/sql_base.cc:
  Auto merged
2007-10-19 13:06:37 -07:00
antony@pcg5ppc.xiphis.org
3b95727600 Merge anubis.xiphis.org:/usr/home/antony/work/mysql-5.1-engines
into  anubis.xiphis.org:/usr/home/antony/work/mysql-5.1-engines.merge
2007-10-19 13:06:37 -07:00
unknown
bf82c2f9b4 Bug#31692 - binlog_killed.test crashes sometimes
The server crashed when a thread was killed while locking the
general_log table at statement begin.

The general_log table is handled like a performance schema table.
The state of open tables is saved and cleared so that this table
seems to be the only open one. Then this table is opened and locked.
After writing, the table is closed and the open table state is
restored. Before restoring, however, it is asserted that there is
no current table open.

After locking the table, mysql_lock_tables() checks if the thread
was killed in between. If so, it unlocks the table and returns an
error. open_ltable() just returns with the error and leaves closing
of the table to close_thread_tables(), which is called at
statement end.

open_performance_schema_table() did not take this into account.
It assumed that a failed open_ltable() would not leave an open
table behind.

Fixed by closing thread tables after open_ltable() and before
restore_backup_open_tables_state() if the thread was killed.

No test case. It requires correctly timed parallel execution.
Since this bug was detected by the test suite, it seems
dispensable to add another test.


sql/sql_base.cc:
  Bug#31692 - binlog_killed.test crashes sometimes
  Closing thread tables after open_ltable() and before
  restore_backup_open_tables_state() if the thread was killed.
2007-10-18 16:14:27 +02:00
istruewing@stella.local
672290b03d Bug#31692 - binlog_killed.test crashes sometimes
The server crashed when a thread was killed while locking the
general_log table at statement begin.

The general_log table is handled like a performance schema table.
The state of open tables is saved and cleared so that this table
seems to be the only open one. Then this table is opened and locked.
After writing, the table is closed and the open table state is
restored. Before restoring, however, it is asserted that there is
no current table open.

After locking the table, mysql_lock_tables() checks if the thread
was killed in between. If so, it unlocks the table and returns an
error. open_ltable() just returns with the error and leaves closing
of the table to close_thread_tables(), which is called at
statement end.

open_performance_schema_table() did not take this into account.
It assumed that a failed open_ltable() would not leave an open
table behind.

Fixed by closing thread tables after open_ltable() and before
restore_backup_open_tables_state() if the thread was killed.

No test case. It requires correctly timed parallel execution.
Since this bug was detected by the test suite, it seems
dispensable to add another test.
2007-10-18 16:14:27 +02:00
unknown
f48feae696 Merge zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-comeng-unification
into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-recentcommmerge


BitKeeper/deleted/.del-ha_berkeley.cc:
  Auto merged
BitKeeper/deleted/.del-mysqld.vcproj~6aa7b3f9c3e28fcb:
  Auto merged
BitKeeper/triggers/post-commit:
  Auto merged
client/mysqlcheck.c:
  Auto merged
include/config-win.h:
  Auto merged
include/my_dbug.h:
  Auto merged
libmysqld/Makefile.am:
  Auto merged
mysql-test/r/func_in.result:
  Auto merged
mysql-test/r/information_schema.result:
  Auto merged
mysql-test/r/information_schema_db.result:
  Auto merged
mysql-test/t/func_in.test:
  Auto merged
mysql-test/t/information_schema.test:
  Auto merged
sql/Makefile.am:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/lock.cc:
  Auto merged
sql/log_event.cc:
  Auto merged
sql/repl_failsafe.cc:
  Auto merged
sql/set_var.h:
  Auto merged
sql/sp_head.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_delete.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_prepare.cc:
  Auto merged
sql/sql_repl.cc:
  Auto merged
sql/sql_view.cc:
  Auto merged
sql/structs.h:
  Auto merged
sql/table.h:
  Auto merged
storage/archive/ha_archive.cc:
  Auto merged
storage/myisam/ha_myisam.cc:
  Auto merged
storage/myisam/mi_open.c:
  Auto merged
storage/myisammrg/ha_myisammrg.cc:
  Auto merged
storage/ndb/src/common/util/File.cpp:
  Auto merged
configure.in:
  Manual merge.
sql/CMakeLists.txt:
  Manual merge.
sql/mysql_priv.h:
  Manual merge.
sql/mysqld.cc:
  Manual merge.
sql/set_var.cc:
  Manual merge.
sql/slave.cc:
  Manual merge.
sql/sql_cache.cc:
  Manual merge.
sql/sql_class.cc:
  Manual merge.
sql/sql_lex.h:
  Manual merge.
sql/sql_parse.cc:
  Manual merge.
sql/sql_select.cc:
  Manual merge.
sql/sql_show.cc:
  Manual merge.
sql/sql_table.cc:
  Manual merge.
sql/sql_update.cc:
  Manual merge.
sql/sql_yacc.yy:
  Manual merge.
2007-10-17 14:05:43 -04:00
cmiller@zippy.cornsilk.net
f3d77c1979 Merge zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-comeng-unification
into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-recentcommmerge
2007-10-17 14:05:43 -04:00
unknown
4a0ec7864e Doxygenized comments. 2007-10-16 15:37:31 -04:00
cmiller@zippy.cornsilk.net
dee842e093 Doxygenized comments. 2007-10-16 15:37:31 -04:00
unknown
b24d4a977f Merge moksha.com.br:/Users/davi/mysql/mysql-5.0-runtime
into  moksha.com.br:/Users/davi/mysql/bugs/31409-5.1


sql/sql_base.cc:
  Auto merged
sql/sql_handler.cc:
  Auto merged
2007-10-10 21:16:53 -03:00
davi@moksha.com.br
9f088628eb Merge moksha.com.br:/Users/davi/mysql/mysql-5.0-runtime
into  moksha.com.br:/Users/davi/mysql/bugs/31409-5.1
2007-10-10 21:16:53 -03:00
unknown
f57813e457 Bug#31409 RENAME TABLE causes server crash or deadlock when used with HANDLER statements
This deadlock occurs when a client issues a HANDLER ... OPEN statement
that tries to open a table that has a pending name-lock on it by another
client that also needs a name-lock on some other table which is already
open and associated to a HANDLER instance owned by the first client.
The deadlock happens because the open_table() function will back-off
and wait until the name-lock goes away, causing a circular wait if some
other name-lock is also pending for one of the open HANDLER tables.

Such situation, for example, can be easily repeated by issuing a RENAME
TABLE command in such a way that the existing table is already open
as a HANDLER table by another client and this client tries to open
a HANDLER to the new table name.

The solution is to allow handler tables with older versions (marked for
flush) to be closed before waiting for the name-lock completion. This is
safe because no other name-lock can be issued between the flush and the
check for pending name-locks.

The test case for this bug is going to be committed into 5.1 because it
requires a test feature only avaiable in 5.1 (wait_condition).


sql/sql_base.cc:
  Improve comments in the open_table() function, stating the importance
  of the handler tables flushing for the back-off process.
sql/sql_handler.cc:
  Allows handler tables flushes when opening new tables in order to avoid
  potential deadlocks. Add comments explaining the importance of the flush.
2007-10-09 12:02:59 -03:00
davi@moksha.local
7252cbe1e0 Bug#31409 RENAME TABLE causes server crash or deadlock when used with HANDLER statements
This deadlock occurs when a client issues a HANDLER ... OPEN statement
that tries to open a table that has a pending name-lock on it by another
client that also needs a name-lock on some other table which is already
open and associated to a HANDLER instance owned by the first client.
The deadlock happens because the open_table() function will back-off
and wait until the name-lock goes away, causing a circular wait if some
other name-lock is also pending for one of the open HANDLER tables.

Such situation, for example, can be easily repeated by issuing a RENAME
TABLE command in such a way that the existing table is already open
as a HANDLER table by another client and this client tries to open
a HANDLER to the new table name.

The solution is to allow handler tables with older versions (marked for
flush) to be closed before waiting for the name-lock completion. This is
safe because no other name-lock can be issued between the flush and the
check for pending name-locks.

The test case for this bug is going to be committed into 5.1 because it
requires a test feature only avaiable in 5.1 (wait_condition).
2007-10-09 12:02:59 -03:00
unknown
2e57478d92 merged the fix for bug 30468 to 5.1-opt
mysql-test/t/grant2.test:
  Auto merged
sql/sql_acl.h:
  Auto merged
sql/sql_base.cc:
  Auto merged
2007-09-27 12:32:59 +03:00
gkodinov/kgeorge@magare.gmz
f42a392b2a merged the fix for bug 30468 to 5.1-opt 2007-09-27 12:32:59 +03:00
unknown
66f13d9120 Bug #30468: column level privileges not respected when joining tables
When expanding a * in a USING/NATURAL join the check for table access
for both tables in the join was done using the grant information of the
first one.
Fixed by getting the grant information for the current table while 
iterating through the columns of the join.


mysql-test/r/grant2.result:
  Bug #30468: test case
mysql-test/t/grant2.test:
  Bug #30468: test case
sql/sql_acl.cc:
  Bug #30468: correctly check column grants
sql/sql_acl.h:
  Bug #30468: correctly check column grants
sql/sql_base.cc:
  Bug #30468: correctly check column grants
sql/sql_insert.cc:
  Bug #30468: correctly check column grants
2007-09-27 12:15:19 +03:00
gkodinov/kgeorge@magare.gmz
fb3b12176d Bug #30468: column level privileges not respected when joining tables
When expanding a * in a USING/NATURAL join the check for table access
for both tables in the join was done using the grant information of the
first one.
Fixed by getting the grant information for the current table while 
iterating through the columns of the join.
2007-09-27 12:15:19 +03:00
unknown
b86904731f Merge bk-internal.mysql.com:/home/bk/mysql-5.0
into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.0-community


BitKeeper/triggers/post-commit:
  Auto merged
CMakeLists.txt:
  Auto merged
VC++Files/sql/mysqld.vcproj:
  Auto merged
client/CMakeLists.txt:
  Auto merged
extra/CMakeLists.txt:
  Auto merged
libmysql/CMakeLists.txt:
  Auto merged
myisam/CMakeLists.txt:
  Auto merged
myisam/mi_open.c:
  Auto merged
mysql-test/r/information_schema.result:
  Auto merged
mysql-test/r/information_schema_db.result:
  Auto merged
mysql-test/t/information_schema.test:
  Auto merged
ndb/src/common/util/File.cpp:
  Auto merged
server-tools/instance-manager/CMakeLists.txt:
  Auto merged
sql/CMakeLists.txt:
  Auto merged
sql/Makefile.am:
  Auto merged
sql/ha_archive.cc:
  Auto merged
sql/ha_berkeley.cc:
  Auto merged
sql/ha_myisam.cc:
  Auto merged
sql/ha_myisammrg.cc:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/lock.cc:
  Auto merged
sql/log_event.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/slave.cc:
  Auto merged
sql/sp_head.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_cache.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_delete.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_prepare.cc:
  Auto merged
sql/sql_repl.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
sql/sql_update.cc:
  Auto merged
sql/sql_view.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
sql/table.h:
  Auto merged
win/README:
  Auto merged
win/configure.js:
  Auto merged
configure.in:
  manual merge.  version update.
sql/sql_parse.cc:
  manual merge
2007-09-10 08:06:27 -04:00
cmiller@zippy.cornsilk.net
cf74e43f15 Merge bk-internal.mysql.com:/home/bk/mysql-5.0
into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.0-community
2007-09-10 08:06:27 -04:00
unknown
ee3c05ee11 Merge malff@bk-internal.mysql.com:/home/bk/mysql-5.1-runtime
into  weblab.(none):/home/marcsql/TREE/mysql-5.1-30712


sql/log.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
2007-08-31 16:04:36 -06:00
malff/marcsql@weblab.(none)
635f31822f Merge malff@bk-internal.mysql.com:/home/bk/mysql-5.1-runtime
into  weblab.(none):/home/marcsql/TREE/mysql-5.1-30712
2007-08-31 16:04:36 -06:00
unknown
d480d0ec5f Bug#30712 (open_performance_schema_table() cause an open table leak on
failures)

Fixed open_performance_schema_table() and close_performance_schema_table()
implementation and callers, to always execute balanced calls to:
  thd->reset_n_backup_open_tables_state(backup);
  thd->restore_backup_open_tables_state(backup);



sql/log.cc:
  Balanced calls to reset_n_backup_open_tables_state() / restore_backup_open_tables_state()
sql/sql_base.cc:
  Balanced calls to reset_n_backup_open_tables_state() / restore_backup_open_tables_state()
2007-08-29 18:56:00 -06:00
malff/marcsql@weblab.(none)
88091e8250 Bug#30712 (open_performance_schema_table() cause an open table leak on
failures)

Fixed open_performance_schema_table() and close_performance_schema_table()
implementation and callers, to always execute balanced calls to:
  thd->reset_n_backup_open_tables_state(backup);
  thd->restore_backup_open_tables_state(backup);
2007-08-29 18:56:00 -06:00
unknown
30f5bb9ec8 Merge bk-internal.mysql.com:/data0/bk/mysql-5.1
into  bk-internal.mysql.com:/users/gshchepa/mysql-5.1-opt


sql/item.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_cache.cc:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
2007-08-23 21:38:24 +02:00
gshchepa@bk-internal.mysql.com
46e58466cb Merge bk-internal.mysql.com:/data0/bk/mysql-5.1
into  bk-internal.mysql.com:/users/gshchepa/mysql-5.1-opt
2007-08-23 21:38:24 +02:00
unknown
294a43ec5e Merge bk-internal.mysql.com:/data0/bk/mysql-5.0
into  bk-internal.mysql.com:/users/gshchepa/mysql-5.0-opt


sql/sql_base.cc:
  Auto merged
sql/sql_cache.cc:
  Auto merged
2007-08-23 21:28:33 +02:00
gshchepa@bk-internal.mysql.com
c70dbeab8b Merge bk-internal.mysql.com:/data0/bk/mysql-5.0
into  bk-internal.mysql.com:/users/gshchepa/mysql-5.0-opt
2007-08-23 21:28:33 +02:00
unknown
0ff829bb71 Merge pippilotta.erinye.com:/shared/home/df/mysql/build/mysql-5.0-marvel
into  pippilotta.erinye.com:/shared/home/df/mysql/build/mysql-5.0.48


sql/sql_base.cc:
  Auto merged
sql/sql_cache.cc:
  Auto merged
2007-08-23 17:43:47 +02:00
df@pippilotta.erinye.com
07c6ef515d Merge pippilotta.erinye.com:/shared/home/df/mysql/build/mysql-5.0-marvel
into  pippilotta.erinye.com:/shared/home/df/mysql/build/mysql-5.0.48
2007-08-23 17:43:47 +02:00
unknown
4a61b16b7c Merge gleb.loc:/home/uchum/work/bk/5.1
into  gleb.loc:/home/uchum/work/bk/5.1-opt


sql/sql_base.cc:
  Auto merged
2007-08-21 16:38:29 +05:00
gshchepa/uchum@gleb.loc
9de070f36b Merge gleb.loc:/home/uchum/work/bk/5.1
into  gleb.loc:/home/uchum/work/bk/5.1-opt
2007-08-21 16:38:29 +05:00
unknown
a9322f2e57 Merge gleb.loc:/home/uchum/work/bk/5.0
into  gleb.loc:/home/uchum/work/bk/5.0-opt


sql/sql_base.cc:
  Auto merged
2007-08-21 16:31:30 +05:00
gshchepa/uchum@gleb.loc
4c144f6349 Merge gleb.loc:/home/uchum/work/bk/5.0
into  gleb.loc:/home/uchum/work/bk/5.0-opt
2007-08-21 16:31:30 +05:00
unknown
780590641d Merge weblab.(none):/home/marcsql/TREE/mysql-5.1-base
into  weblab.(none):/home/marcsql/TREE/mysql-5.1-rt-merge


sql/field.cc:
  Auto merged
sql/field.h:
  Auto merged
sql/log_event.h:
  Auto merged
sql/rpl_record.cc:
  Auto merged
sql/slave.h:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_handler.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
2007-08-20 11:13:31 -06:00
malff/marcsql@weblab.(none)
1c27dd1d67 Merge weblab.(none):/home/marcsql/TREE/mysql-5.1-base
into  weblab.(none):/home/marcsql/TREE/mysql-5.1-rt-merge
2007-08-20 11:13:31 -06:00
unknown
3c52b2b3a8 Merge weblab.(none):/home/marcsql/TREE/mysql-5.0-base
into  weblab.(none):/home/marcsql/TREE/mysql-5.0-rt-merge


sql/sql_base.cc:
  Auto merged
sql/sql_handler.cc:
  Auto merged
2007-08-20 10:45:16 -06:00
malff/marcsql@weblab.(none)
8d507c5897 Merge weblab.(none):/home/marcsql/TREE/mysql-5.0-base
into  weblab.(none):/home/marcsql/TREE/mysql-5.0-rt-merge
2007-08-20 10:45:16 -06:00
unknown
7ee93c1639 Bug#29936 (Stored Procedure DML ignores low_priority_updates setting)
This is a follow up for the patch for Bug#26162 "Trigger DML ignores low_priority_updates setting", where the stored procedure ignores the session setting of low_priority_updates.


sql/lock.cc:
  Add late lock_type assertion.
sql/sql_base.cc:
  Possibly downgrade lock type to the the session setting of low_priority_updates and also remove early assertion.
2007-08-17 17:11:08 -03:00
davi@moksha.local
fa7ba431df Bug#29936 (Stored Procedure DML ignores low_priority_updates setting)
This is a follow up for the patch for Bug#26162 "Trigger DML ignores low_priority_updates setting", where the stored procedure ignores the session setting of low_priority_updates.
2007-08-17 17:11:08 -03:00
unknown
59a1154675 Merge olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug30396
into  olga.mysql.com:/home/igor/dev-opt/mysql-5.1-opt-bug30396


libmysql/libmysql.c:
  Auto merged
mysql-test/r/select.result:
  Auto merged
mysql-test/t/select.test:
  Auto merged
sql/item_cmpfunc.h:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_select.cc:
  Auto merged
tests/mysql_client_test.c:
  Manual merge
2007-08-16 17:22:50 -07:00
igor@olga.mysql.com
ff3f6e806b Merge olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug30396
into  olga.mysql.com:/home/igor/dev-opt/mysql-5.1-opt-bug30396
2007-08-16 17:22:50 -07:00
unknown
430df009a0 Merge ramayana.hindu.god:/home/tsmith/m/bk/maint/50
into  ramayana.hindu.god:/home/tsmith/m/bk/maint/51


sql/mysql_priv.h:
  Auto merged
sql/sql_base.cc:
  SCCS merged
sql/sql_handler.cc:
  SCCS merged
2007-08-16 12:03:49 -06:00
tsmith@ramayana.hindu.god
18ffae6ab6 Merge ramayana.hindu.god:/home/tsmith/m/bk/maint/50
into  ramayana.hindu.god:/home/tsmith/m/bk/maint/51
2007-08-16 12:03:49 -06:00
unknown
409938f22a Bug#29936 (Stored Procedure DML ignores low_priority_updates setting)
This is a follow up for the patch for Bug#26162 "Trigger DML ignores low_priority_updates setting", where the stored procedure ignores the session setting of low_priority_updates.

For every table open operation with default write (TL_WRITE_DEFAULT) lock_type, downgrade the lock type to the session setting of low_priority_updates.


sql/lock.cc:
  Add late lock_type assertion.
sql/sql_base.cc:
  Possibly downgrade lock type to the the session setting of low_priority_updates and also remove early assertion.
2007-08-16 14:51:37 -03:00
davi@moksha.local
d669228006 Bug#29936 (Stored Procedure DML ignores low_priority_updates setting)
This is a follow up for the patch for Bug#26162 "Trigger DML ignores low_priority_updates setting", where the stored procedure ignores the session setting of low_priority_updates.

For every table open operation with default write (TL_WRITE_DEFAULT) lock_type, downgrade the lock type to the session setting of low_priority_updates.
2007-08-16 14:51:37 -03:00
unknown
163420d2d7 Bug #29474: 21587 Regression Ever increasing open tables/fd when using HANDLER READ + DELETE
Revert the fix for bug 21587.  That bug will be re-opened, and a new
fix must be created.
2007-08-16 10:56:09 -06:00
tsmith@ramayana.hindu.god
49891223c3 Bug #29474: 21587 Regression Ever increasing open tables/fd when using HANDLER READ + DELETE
Revert the fix for bug 21587.  That bug will be re-opened, and a new
fix must be created.
2007-08-16 10:56:09 -06:00
unknown
a8f8e5483e Fixed bug #30396.
The bug caused memory corruption for some queries with top OR level
in the WHERE condition if they contained equality predicates and 
other sargable predicates in disjunctive parts of the condition.

The corruption happened because the upper bound of the memory
allocated for KEY_FIELD and SARGABLE_PARAM internal structures
containing info about potential lookup keys was calculated incorrectly
in some cases. In particular it was calculated incorrectly when the
WHERE condition was an OR formula with disjuncts being AND formulas
including equalities and other sargable predicates.


mysql-test/r/select.result:
  Added a test case for bug #30396.
mysql-test/t/select.test:
  Added a test case for bug #30396.
sql/item_cmpfunc.h:
  Removed max_members from the COND_EQUAL class as not useful anymore.
sql/sql_base.cc:
  Added the max_equal_elems field to the st_select_lex structure.
sql/sql_lex.cc:
  Added the max_equal_elems field to the st_select_lex structure.
sql/sql_lex.h:
  Added the max_equal_elems field to the st_select_lex structure.
  The field contains the maximal number of elements in multiple equalities
  built for the query conditions.
sql/sql_select.cc:
  Fixed bug #30396.
  The bug caused memory corruption for some queries with top OR level
  in the WHERE condition if they contained equality predicates and 
  other sargable predicates in disjunctive parts of the condition.
  
  The corruption happened because the upper bound of the memory
  allocated for KEY_FIELD and SARGABLE_PARAM internal structures
  containing info about potential lookup keys was calculated incorrectly
  in some cases. In particular it was calculated incorrectly when the
  WHERE condition was an OR formula with disjuncts being AND formulas
  including equalities and other sargable predicates.
   
  The max_equal_elems field to the st_select_lex structure is used now
  to calculate the above mentioned upper bound. The field contains the
  maximal number of elements in multiple equalities built for the query
  conditions.
2007-08-15 10:24:18 -07:00
igor@olga.mysql.com
d790ec42e1 Fixed bug #30396.
The bug caused memory corruption for some queries with top OR level
in the WHERE condition if they contained equality predicates and 
other sargable predicates in disjunctive parts of the condition.

The corruption happened because the upper bound of the memory
allocated for KEY_FIELD and SARGABLE_PARAM internal structures
containing info about potential lookup keys was calculated incorrectly
in some cases. In particular it was calculated incorrectly when the
WHERE condition was an OR formula with disjuncts being AND formulas
including equalities and other sargable predicates.
2007-08-15 10:24:18 -07:00
unknown
7691bbbfe3 Provide initial module structure to Doxygen.
sql/event_data_objects.cc:
  Add module comments.
sql/event_data_objects.h:
  Add module comments.
sql/event_db_repository.cc:
  Add module comments.
sql/event_db_repository.h:
  Add module comments.
sql/event_queue.cc:
  Add module comments.
sql/event_queue.h:
  Add module comments.
sql/event_scheduler.cc:
  Add module comments.
sql/event_scheduler.h:
  Add module comments.
sql/events.cc:
  Add module comments.
sql/events.h:
  Add module comments.
sql/lock.cc:
  Add module comments.
sql/sp_head.h:
  Add module comments.
sql/sql_base.cc:
  Add module comments.
sql/sql_lex.h:
  Add module comments.
sql/sql_parse.cc:
  Add module comments.
sql/sql_select.cc:
  Add module comments.
sql/sql_yacc.yy:
  Add module comments.
2007-08-15 19:08:44 +04:00