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ID# Date Updated Type Status Sev Version OS CPU Summary
274522007-03-26
17:35
2018-09-09
20:45
MySQL Server: OptimizerVerified
(5601 days)
S35.0.40-BK, 5.0.24a-debian-log, 5.1.31-bzr, 6.0.7-alpha, 6.0.9-bzrLinuxAnyCorrelated subquery produces inefficient optimizer plan for INFORMATION_SCHEMA
351652008-03-08
17:48
2022-12-04
20:45
MySQL Server: CSVVerified
(5851 days)
S55.1AnyAnyLogging to table is slow for large queries
383972008-07-27
20:13
2018-09-09
20:45
MySQL Server: OptimizerVerified
(5713 days)
S35.1.26, 5.0.62AnyAnyselect distinct + order by desc is executed inefficiently
403672008-10-28
8:55
2011-02-16
23:43
MySQL Server: Information schemaVerified
(5535 days)
S35.1.28, 5.1.29, 5.0, 5.1 bzrAnyAnySHOW on a broad view is taking too long
427052009-02-09
16:37
2011-02-16
23:43
MySQL Server: GeneralVerified
(5475 days)
S35.1.30AnyAnyReduce malloc/free during query lifecycle.
442012009-04-10
3:04
2018-09-09
20:45
MySQL Server: OptimizerVerified
(5026 days)
S35.1.32, 5.1.35-bzr, 6.0.11-bzr, 5.0, 5.6.99AnyAnyPerformance problem with View
454242009-06-10
6:58
2018-09-09
20:45
MySQL Server: OptimizerVerified
(5396 days)
S25.0.51a, 5.0.77 and 5.1.34, 5.1, 6.0 bzrLinuxAnyUPDATE statement cause full table scan ?
463762009-07-24
17:05
2018-09-09
20:45
MySQL Server: OptimizerVerified
(5347 days)
S55.0.85, 5.1.36, 5.1.38, 5.1.39Windows (XP)AnyOptimizer choose wrong index even when where clause and order-by are covered
466482009-08-11
11:41
2018-09-09
20:45
MySQL Server: OptimizerVerified
(5328 days)
S35.1.32, 4.1, 5.0, 5.1, azalea bzrLinux (2.6.28.7)AnySQL_CALC_FOUND_ROWS kills performance with ORDER BY and LIMIT
483592009-10-27
19:24
2012-05-18
20:19
MySQL Cluster: Cluster (NDB) storage engineIn progress
(5017 days)
S3mysql-5.1-telco-7.1Linux (RHEL 4)AnyALTER TABLE xx COMMENT - locks large tables
478842009-10-07
3:24
2018-09-09
20:45
MySQL Server: OptimizerVerified
(5163 days)
S25.1.39, 5.1.44, 5.5.99Linux (Linux web2 2.6.18-92.1.18.el5.028stab060.8 #1 SMP Mon Feb 9 21:44:50 MSK 2009 x86_64)AnyMySQL 5.1.39 failed to use index
219782006-09-01
22:13
2011-02-16
23:43
MySQL Server: OptionsVerified
(5949 days)
S34.0.18, 5.0, 6.0.10, 5.5Windows (Windows 2000)Any'flush_time' value set for 1800 sec. on Non Win9x/Me installs by default
503672010-01-15
14:12
2011-02-16
23:44
MySQL Server: GeneralVerified
(5115 days)
S55.1.42, 5.1 bzrAny (MS Windows 32 bits, Mac)AnyREPLACE has quadradic computational complexity on windows server (but not linux)
559792010-08-13
22:05
2018-09-09
20:45
MySQL Server: OptimizerVerified
(4964 days)
S55.1.39LinuxAnyKey not used if IN() list contains mix of strings and integers
569242010-09-22
11:26
2018-06-24
20:45
MySQL Workbench: SQL EditorVerified
(4491 days)
S25.2.28Linux (Ubuntu 10.04)AnyMemory leak? Possibly not a bug.
569652010-09-23
9:22
2015-08-10
14:34
MySQL Server: mysqldump Command-line ClientVerified
(4920 days)
S35.1.44Linux (2.6.18-164.6.1.el5 #1 SMP, CentOS 5.5)Anymysqldump poor performance with large number of tables
580082010-11-05
9:38
2018-09-09
20:45
MySQL Server: OptimizerVerified
(4883 days)
S35.1, 5.0AnyAnywrong datatype (blob) in the resultset if the string is larger than 512 bytes
589282010-12-14
20:58
2018-09-09
20:45
MySQL Server: OptimizerVerified
(4844 days)
S35.1-bugteamAnyAny"not exists" optimization not applied if relevant table is not single inner one
597272011-01-25
21:36
2016-12-04
20:45
MySQL Server: InnoDB storage engineVerifiedS55.1 plugin, 5.5, 5.6AnyAnyLRU search can be inefficient with compression
595572011-01-17
15:26
2018-09-09
20:45
MySQL Server: OptimizerVerified
(4810 days)
S25.1, 5.5AnyAnyMySQL uses order of fields in GROUP BY when ORDER BY NULL is specified
600872011-02-10
13:14
2016-12-04
20:45
MySQL Server: InnoDB storage engineVerified
(4786 days)
S35.5AnyAnyPatch: Minimize InnoDB I/O load by adding a prefetch stage
603452011-03-04
17:11
2013-01-15
15:25
MySQL ServerVerified
(4081 days)
S55.1.55 6.0.11AnyAnytrim trailing spaces processes data only byte wise (the continue of bug14637)
603482011-03-04
20:14
2013-01-15
15:25
MySQL ServerVerified
(4081 days)
S55.1.55AnyAnytrim trailing spaces processes data only byte wise (continue of bug14637 (2))
603492011-03-04
21:20
2013-01-15
15:25
MySQL ServerVerified
(4081 days)
S55.1.55AnyAnytrim beginning spaces processes data only byte wise (continue of bug14637 (3))
603512011-03-04
22:15
2013-01-15
15:27
MySQL ServerVerified
(4081 days)
S55.1.55AnyAnytrim same character processes data only byte wise (continue of bug14637 (4))
665632012-08-28
5:37
2012-08-28
6:55
MySQL Server: InnoDB Plugin storage engineVerified
(4221 days)
S55.1,5.6AnyAnyreduce the number of redundant calls to btr_cur_optimistic_insert()
691182013-05-02
2:28
2013-05-02
14:00
MySQL Server: Command-line ClientsVerified
(3974 days)
S55.6, 5.7AnyAnyWasted work in method get_table_structure()
685722013-03-05
10:57
2014-02-19
16:19
MySQL Server: Federated storage engineVerified
(4031 days)
S35.5.25a, 5.5.31AnyAnyFEDERATED using SHOW TABLE STATUS causes performance problems for InnoDB tables
643402012-02-15
14:07
2013-06-14
15:35
MySQL Server: InnoDB Plugin storage engineVerified
(3931 days)
S55.1.52, 5.1.61AnyAnyrace on no_flush event during buf_flush_free_margin
755042015-01-14
12:52
2015-01-22
14:51
MySQL Server: InnoDB storage engineVerified
(3344 days)
S5AnyAnybtr_search_guess_on_hash makes found block young twice?
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