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ID# Date Updated Type Status Sev Version OS CPU Summary
899262018-03-06
10:20
2018-03-12
12:21
MySQL Server: C API (client library)Verified
(2209 days)
S55.7Linuxx86Performance degradation in libmysqlclient 20
691182013-05-02
2:28
2013-05-02
14:00
MySQL Server: Command-line ClientsVerified
(3984 days)
S55.6, 5.7AnyAnyWasted work in method get_table_structure()
569652010-09-23
9:22
2015-08-10
14:34
MySQL Server: mysqldump Command-line ClientVerified
(4930 days)
S35.1.44Linux (2.6.18-164.6.1.el5 #1 SMP, CentOS 5.5)Anymysqldump poor performance with large number of tables
679132012-12-16
2:31
2017-07-18
5:39
Connector / ODBCVerified
(4085 days)
S55.2.2, 5.1.11Windows (Windows 7 and 8 64-bit)AnyODBC connector performance problem
1000912020-07-02
12:23
2020-07-03
8:48
Connector / PythonVerified
(1365 days)
S58.0.18, 8.0.20AnyAnymysqlx interface is a lot slower than the connector.python interface
569242010-09-22
11:26
2018-06-24
20:45
MySQL Workbench: SQL EditorVerified
(4501 days)
S25.2.28Linux (Ubuntu 10.04)AnyMemory leak? Possibly not a bug.
950802019-04-23
7:24
2019-04-30
14:09
MySQL RouterVerified
(1795 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
603512011-03-04
22:15
2013-01-15
15:27
MySQL ServerVerified
(4091 days)
S55.1.55AnyAnytrim same character processes data only byte wise (continue of bug14637 (4))
603492011-03-04
21:20
2013-01-15
15:25
MySQL ServerVerified
(4091 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
(4091 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
(4091 days)
S55.1.55 6.0.11AnyAnytrim trailing spaces processes data only byte wise (the continue of bug14637)
483592009-10-27
19:24
2012-05-18
20:19
MySQL Cluster: Cluster (NDB) storage engineIn progress
(5027 days)
S3mysql-5.1-telco-7.1Linux (RHEL 4)AnyALTER TABLE xx COMMENT - locks large tables
602612011-02-26
0:59
2016-11-12
22:57
MySQL Cluster: Cluster (NDB) storage engineVerified
(2694 days)
S5mysql-cluster-gpl-7.1.9aAnyAnyAre transaction hints needed in these situation?
831512016-09-26
14:27
2021-09-14
10:08
MySQL Server: Connection HandlingVerified
(1892 days)
S25.6.33CentOSAnyhigh number of SHOW WARNINGS can stall server if compressed protocol in use
351652008-03-08
17:48
2022-12-04
20:45
MySQL Server: CSVVerified
(5861 days)
S55.1AnyAnyLogging to table is slow for large queries
685722013-03-05
10:57
2014-02-19
16:19
MySQL Server: Federated storage engineVerified
(4041 days)
S35.5.25a, 5.5.31AnyAnyFEDERATED using SHOW TABLE STATUS causes performance problems for InnoDB tables
503672010-01-15
14:12
2011-02-16
23:44
MySQL Server: GeneralVerified
(5125 days)
S55.1.42, 5.1 bzrAny (MS Windows 32 bits, Mac)AnyREPLACE has quadradic computational complexity on windows server (but not linux)
427052009-02-09
16:37
2011-02-16
23:43
MySQL Server: GeneralVerified
(5485 days)
S35.1.30AnyAnyReduce malloc/free during query lifecycle.
403672008-10-28
8:55
2011-02-16
23:43
MySQL Server: Information schemaVerified
(5545 days)
S35.1.28, 5.1.29, 5.0, 5.1 bzrAnyAnySHOW on a broad view is taking too long
759812015-02-20
13:56
2017-11-05
7:12
MySQL Server: InnoDB storage engineVerified
(3277 days)
S55.7.6AnyAnyMySQL 5.7.5 30% slower than 5.6.23 for 1 thread write
744082014-10-15
19:52
2018-07-04
15:16
MySQL Server: InnoDB storage engineVerified
(2095 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
(2878 days)
S55.7AnyAnySingle page flushing should be removed
759622015-02-19
3:14
2015-03-03
20:46
MySQL Server: InnoDB storage engineVerified
(3314 days)
S35.6.24, 5.7.6AnyAnyInnodb calls fsync when freeing a LRU page to fulfill page request
620182011-07-28
15:15
2018-02-11
20:45
MySQL Server: InnoDB storage engineVerified
(4090 days)
S55.6.3AnyAnyinnodb adaptive hash index mutex contention
994322020-05-04
8:09
2020-05-05
12:04
MySQL Server: InnoDB storage engineVerified
(1425 days)
S58.0.20AnyARMImproving memory barrier during rseg allocation
1001192020-07-06
7:07
2020-08-14
13:55
MySQL Server: InnoDB storage engineVerified
(1323 days)
S58.0.20AnyARMSwitch to use relaxed memory barrier for redo-log counters
755042015-01-14
12:52
2015-01-22
14:51
MySQL Server: InnoDB storage engineVerified
(3354 days)
S5AnyAnybtr_search_guess_on_hash makes found block young twice?
1143312024-03-12
21:53
2024-03-19
9:48
MySQL Server: InnoDB storage engineVerified
(10 days)
S58.0.*, 8.0.36Linuxx86MySQL get high insert latency in low concurrency
600872011-02-10
13:14
2016-12-04
20:45
MySQL Server: InnoDB storage engineVerified
(4796 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
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