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ID# Date Updated Type Status Sev Version OS CPU Summary
1143312024-03-12
21:53
2024-03-19
9:48
MySQL Server: InnoDB storage engineVerified
(9 days)
S58.0.*, 8.0.36Linuxx86MySQL get high insert latency in low concurrency
1129022023-10-31
14:39
2024-02-26
11:07
MySQL Server: OptimizerVerified
(31 days)
S58.0.31, 8.0.35Linux (n.a.)x86 (x86_64)Optimizer in MySQL 8 is significantly slower on dependent subqueries than 5.7
1140562024-02-19
23:03
2024-02-22
10:56
MySQL Server: Prepared statementsVerified
(35 days)
S58.0.32, 8.0.22+AnyAnyPerformance degredation using REGEXP in statement with parameters vs query
1107792023-04-24
11:32
2023-05-12
5:49
MySQL Server: OptimizerVerified
(321 days)
S58.0.33, 5.7.42AnyAnyIN clause cause pick bad performan index
351652008-03-08
17:48
2022-12-04
20:45
MySQL Server: CSVVerified
(5860 days)
S55.1AnyAnyLogging to table is slow for large queries
1059822021-12-27
8:11
2022-01-03
8:02
MySQL Server: Storage EnginesVerified
(815 days)
S5all, 5.7, 8.0LinuxAnyhard-coded libaio API parameter may not helpful to performance
831512016-09-26
14:27
2021-09-14
10:08
MySQL Server: Connection HandlingVerified
(1891 days)
S25.6.33CentOSAnyhigh number of SHOW WARNINGS can stall server if compressed protocol in use
1046152021-08-13
10:26
2021-08-13
11:36
MySQL Server: LoggingVerified
(958 days)
S58.0Any (rhel7.4)Any (intel-x86)trx commit slow if there are too many binlog files to purge while rotating
1001192020-07-06
7:07
2020-08-14
13:55
MySQL Server: InnoDB storage engineVerified
(1322 days)
S58.0.20AnyARMSwitch to use relaxed memory barrier for redo-log counters
1004322020-08-05
7:55
2020-08-05
14:03
MySQL Server: Performance SchemaVerified
(1331 days)
S58.0.21AnyARMOptimal memory-barrier for performance-schema counter
1000912020-07-02
12:23
2020-07-03
8:48
Connector / PythonVerified
(1364 days)
S58.0.18, 8.0.20AnyAnymysqlx interface is a lot slower than the connector.python interface
994322020-05-04
8:09
2020-05-05
12:04
MySQL Server: InnoDB storage engineVerified
(1424 days)
S58.0.20AnyARMImproving memory barrier during rseg allocation
987712020-02-28
6:29
2020-03-02
18:39
MySQL Server: OptimizerVerified
(1490 days)
S25.7, 5.7.29AnyAnyPerformance impact while selecting data from a JSON type column
950802019-04-23
7:24
2019-04-30
14:09
MySQL RouterVerified
(1794 days)
S58.0.15, 8.0.16Oracle Linux (Oracle Linux Server 7.5, Linux 4.1.12-124.18.6.el7uek.x86_64 )x86 (Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz)MySQL Router consuming mor CPU resources than it should
454242009-06-10
6:58
2018-09-09
20:45
MySQL Server: OptimizerVerified
(5405 days)
S25.0.51a, 5.0.77 and 5.1.34, 5.1, 6.0 bzrLinuxAnyUPDATE statement cause full table scan ?
274522007-03-26
17:35
2018-09-09
20:45
MySQL Server: OptimizerVerified
(5610 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
383972008-07-27
20:13
2018-09-09
20:45
MySQL Server: OptimizerVerified
(5722 days)
S35.1.26, 5.0.62AnyAnyselect distinct + order by desc is executed inefficiently
595572011-01-17
15:26
2018-09-09
20:45
MySQL Server: OptimizerVerified
(4819 days)
S25.1, 5.5AnyAnyMySQL uses order of fields in GROUP BY when ORDER BY NULL is specified
589282010-12-14
20:58
2018-09-09
20:45
MySQL Server: OptimizerVerified
(4853 days)
S35.1-bugteamAnyAny"not exists" optimization not applied if relevant table is not single inner one
442012009-04-10
3:04
2018-09-09
20:45
MySQL Server: OptimizerVerified
(5035 days)
S35.1.32, 5.1.35-bzr, 6.0.11-bzr, 5.0, 5.6.99AnyAnyPerformance problem with View
463762009-07-24
17:05
2018-09-09
20:45
MySQL Server: OptimizerVerified
(5356 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
(5337 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
478842009-10-07
3:24
2018-09-09
20:45
MySQL Server: OptimizerVerified
(5172 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
559792010-08-13
22:05
2018-09-09
20:45
MySQL Server: OptimizerVerified
(4973 days)
S55.1.39LinuxAnyKey not used if IN() list contains mix of strings and integers
580082010-11-05
9:38
2018-09-09
20:45
MySQL Server: OptimizerVerified
(4892 days)
S35.1, 5.0AnyAnywrong datatype (blob) in the resultset if the string is larger than 512 bytes
915852018-07-10
1:16
2018-08-27
11:06
MySQL Server: Stored RoutinesVerified
(2088 days)
S55.7, 8.0, 8.0.11, 5.7.23AnyAny“dead” code inside the stored proc or function can significantly slow it down
813762016-05-11
6:48
2018-07-16
8:12
MySQL Server: InnoDB storage engineVerified
(2877 days)
S55.7AnyAnySingle page flushing should be removed
744082014-10-15
19:52
2018-07-04
15:16
MySQL Server: InnoDB storage engineVerified
(2094 days)
S55.6, 5.7, 8.0AnyAnysrv_conc_enter_innodb() is not optimal
569242010-09-22
11:26
2018-06-24
20:45
MySQL Workbench: SQL EditorVerified
(4500 days)
S25.2.28Linux (Ubuntu 10.04)AnyMemory leak? Possibly not a bug.
899262018-03-06
10:20
2018-03-12
12:21
MySQL Server: C API (client library)Verified
(2208 days)
S55.7Linuxx86Performance degradation in libmysqlclient 20
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