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ID# Date Updated Type Status Sev Version OS CPU Summary
219782006-09-01
22:13
2011-02-16
23:43
MySQL Server: OptionsVerified
(5958 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
403672008-10-28
8:55
2011-02-16
23:43
MySQL Server: Information schemaVerified
(5544 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
(5484 days)
S35.1.30AnyAnyReduce malloc/free during query lifecycle.
503672010-01-15
14:12
2011-02-16
23:44
MySQL Server: GeneralVerified
(5124 days)
S55.1.42, 5.1 bzrAny (MS Windows 32 bits, Mac)AnyREPLACE has quadradic computational complexity on windows server (but not linux)
483592009-10-27
19:24
2012-05-18
20:19
MySQL Cluster: Cluster (NDB) storage engineIn progress
(5026 days)
S3mysql-5.1-telco-7.1Linux (RHEL 4)AnyALTER TABLE xx COMMENT - locks large tables
665632012-08-28
5:37
2012-08-28
6:55
MySQL Server: InnoDB Plugin storage engineVerified
(4230 days)
S55.1,5.6AnyAnyreduce the number of redundant calls to btr_cur_optimistic_insert()
603492011-03-04
21:20
2013-01-15
15:25
MySQL ServerVerified
(4090 days)
S55.1.55AnyAnytrim beginning spaces processes data only byte wise (continue of bug14637 (3))
603482011-03-04
20:14
2013-01-15
15:25
MySQL ServerVerified
(4090 days)
S55.1.55AnyAnytrim trailing spaces processes data only byte wise (continue of bug14637 (2))
603452011-03-04
17:11
2013-01-15
15:25
MySQL ServerVerified
(4090 days)
S55.1.55 6.0.11AnyAnytrim trailing spaces processes data only byte wise (the continue of bug14637)
603512011-03-04
22:15
2013-01-15
15:27
MySQL ServerVerified
(4090 days)
S55.1.55AnyAnytrim same character processes data only byte wise (continue of bug14637 (4))
691182013-05-02
2:28
2013-05-02
14:00
MySQL Server: Command-line ClientsVerified
(3983 days)
S55.6, 5.7AnyAnyWasted work in method get_table_structure()
643402012-02-15
14:07
2013-06-14
15:35
MySQL Server: InnoDB Plugin storage engineVerified
(3940 days)
S55.1.52, 5.1.61AnyAnyrace on no_flush event during buf_flush_free_margin
685722013-03-05
10:57
2014-02-19
16:19
MySQL Server: Federated storage engineVerified
(4040 days)
S35.5.25a, 5.5.31AnyAnyFEDERATED using SHOW TABLE STATUS causes performance problems for InnoDB tables
755042015-01-14
12:52
2015-01-22
14:51
MySQL Server: InnoDB storage engineVerified
(3353 days)
S5AnyAnybtr_search_guess_on_hash makes found block young twice?
759622015-02-19
3:14
2015-03-03
20:46
MySQL Server: InnoDB storage engineVerified
(3313 days)
S35.6.24, 5.7.6AnyAnyInnodb calls fsync when freeing a LRU page to fulfill page request
711402013-12-13
9:16
2015-07-31
8:59
MySQL Server: OptimizerVerified
(3163 days)
S25.1, 5.5, 5.6.15, 5.7.7AnyAnyOptimizer does NOT use range checks in typical self-join for InnoDB tables
569652010-09-23
9:22
2015-08-10
14:34
MySQL Server: mysqldump Command-line ClientVerified
(4929 days)
S35.1.44Linux (2.6.18-164.6.1.el5 #1 SMP, CentOS 5.5)Anymysqldump poor performance with large number of tables
783552015-09-07
15:53
2015-09-15
8:51
MySQL Server: OptimizerVerified
(3117 days)
S55.5.41, 5.5.46, 5.5.47Ubuntu (x64)Anynested select query not work on mysql 5.5 but it works well in mysql 5.6
303422007-08-09
18:52
2015-10-07
14:54
MySQL Server: OptimizerVerified
(3095 days)
S55.0.37, 5.6.17AnyAnyEquality propagation can make optimization much slower
816302016-05-28
5:46
2016-08-31
6:30
MySQL Server: ReplicationVerified
(2766 days)
S55.7.12AnyAnyMySQL 5.7 is 37-45% slower then 5.6 when using binlogging due to defaults change
602612011-02-26
0:59
2016-11-12
22:57
MySQL Cluster: Cluster (NDB) storage engineVerified
(2693 days)
S5mysql-cluster-gpl-7.1.9aAnyAnyAre transaction hints needed in these situation?
600872011-02-10
13:14
2016-12-04
20:45
MySQL Server: InnoDB storage engineVerified
(4795 days)
S35.5AnyAnyPatch: Minimize InnoDB I/O load by adding a prefetch stage
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
679132012-12-16
2:31
2017-07-18
5:39
Connector / ODBCVerified
(4084 days)
S55.2.2, 5.1.11Windows (Windows 7 and 8 64-bit)AnyODBC connector performance problem
759812015-02-20
13:56
2017-11-05
7:12
MySQL Server: InnoDB storage engineVerified
(3276 days)
S55.7.6AnyAnyMySQL 5.7.5 30% slower than 5.6.23 for 1 thread write
620182011-07-28
15:15
2018-02-11
20:45
MySQL Server: InnoDB storage engineVerified
(4089 days)
S55.6.3AnyAnyinnodb adaptive hash index mutex contention
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
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.
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
813762016-05-11
6:48
2018-07-16
8:12
MySQL Server: InnoDB storage engineVerified
(2877 days)
S55.7AnyAnySingle page flushing should be removed
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