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| ID# | Date | Updated | Type | Status | Sev | Version | OS | CPU | Summary |
|---|---|---|---|---|---|---|---|---|---|
| 114903 | 2024-05-07 7:22 | 2025-06-02 10:09 | MySQL Server: InnoDB storage engine | Closed (465 days) | S5 | 8.4.0 | Any | Any | MySQL 8.4.0 is 10% slower for write workloads than MySQL 8.0.37 |
| 115399 | 2024-06-21 3:40 | 2024-10-30 1:35 | MySQL Server: InnoDB storage engine | Closed (680 days) | S5 | 8.x, 8.0.37, 8.4.0 | Any | Any | performance deterioration caused by incorrect cpu usage statistics |
| 115465 | 2024-06-30 2:35 | 2024-07-05 8:13 | Connector / C++ | Closed (801 days) | S5 | 8 | Any | Any | Not allowing move semantic on variadic template arguments |
| 115475 | 2024-07-01 15:52 | 2024-07-09 6:17 | Connector / J | Closed (793 days) | S5 | 8.0.33 | Any | Any | CPU spike when we use mysql-connector-java version 8.0.33 with Mysql DB 5.7 |
| 115988 | 2024-09-03 15:03 | 2026-09-03 14:42 | MySQL Server: InnoDB storage engine | Closed (7 days) | S5 | 8.0.39, 8.4.2, 9.0.1 | Any | Any | Too Much Disk Read on Startup, penalizing deployments with many tables (1M+). |
| 116393 | 2024-10-17 12:46 | 2025-03-04 12:33 | MySQL Server: DML | Closed (603 days) | S5 | 8.0 | Any | Any | Degrading performance of MD5(), SHA2() functions |
| 116463 | 2024-10-23 20:38 | 2025-04-14 15:09 | MySQL Server: InnoDB storage engine | Closed (514 days) | S5 | 8.0 | Any | Any | behavior related to innodb_spin_wait_delay changed in 8.0.30 |
| 116467 | 2024-10-24 9:00 | 2024-10-31 8:42 | MySQL Server: DML | Closed (679 days) | S5 | 8.0.39 | Oracle Linux (8) | x86 | The DML performance of a single connection in MySQL 8 is half that of MySQL 5.7. |
| 116878 | 2024-12-04 17:10 | 2026-07-28 11:31 | MySQL Server: InnoDB storage engine | Closed (44 days) | S5 | 8.0.21 and above | Any | Any | False sharing with hardcoded cache line size |
| 117027 | 2024-12-20 2:45 | 2025-02-24 23:13 | Connector / J | Closed (563 days) | S5 | 9.X AND 8.X | Any | Any | Mysql connector use an uneffective way to match numericValue |
| 117085 | 2024-12-31 8:50 | 2025-03-14 20:44 | MySQL Server: Optimizer | Closed (545 days) | S5 | 8.0.40 | Any | x86 | Performance issue with Multi-Valued Index and ORDER BY DESC LIMIT (Reads more data than expected) |
| 117772 | 2025-03-22 8:41 | 2026-08-07 15:19 | MySQL Server: Performance Schema | Closed (450 days) | S5 | 8.0, 8.4., 9.2.0 | Any | Any | Debug code in pfs_get_thread_statement_locker_vc() leaking to release builds |
| 117907 | 2025-04-08 8:02 | 2025-05-15 15:30 | MySQL Server: Optimizer | Closed (483 days) | S5 | 8.4.4, 9.2.0 | Any | Any | Performance degradation in MySQL>=8.4 vs MySQL 8.0 due to redundant condition not optimized away |
| 118009 | 2025-04-18 7:13 | 2026-06-16 11:20 | MySQL Server: Optimizer | Closed (136 days) | S5 | 8.4.5, 9.3.0 | Debian (12) | x86 (amd64) | SELECT query on primary key column deteriorates to full table scan when filter involves too long string |
| 118057 | 2025-04-25 9:48 | 2026-07-14 11:33 | MySQL Server: DDL | Closed (58 days) | S5 | 8.0 | Any | Any | optimize for check_promoted_index |
| 118902 | 2025-08-27 14:16 | 2025-08-28 2:25 | MySQL Server: InnoDB storage engine | Closed (378 days) | S5 | 8.0.42 | Any | Any | no need to set rec_new_set_instant in row_upd_rec_in_place |
| 119442 | 2025-11-21 20:13 | 2026-08-13 17:10 | MySQL Server: Optimizer | Closed (28 days) | S5 | 8.4.4 | Any | Any | Optimizer fails to simplify ORDER BY when column is filtered by IS NULL, causing filesort |
| 56812 | 2010-09-16 8:41 | 2011-02-16 23:44 | MySQL Server: Documentation | Closed (5832 days) | S5 | 5.1.41, 5.1.50 | Linux (5.1.41-3ubuntu12.6-log (Ubuntu)) | Any | DESCRIBE statement creates a temporary table on disk |
| 57040 | 2010-09-27 17:06 | 2015-11-08 22:54 | Connector / ODBC | Closed (3959 days) | S5 | 5.1.7 | Windows (Small Business Server 2008 RS1) | Any | Data Source Configuration Wizard reports Error: Invalid attribute string |
| 57146 | 2010-09-30 15:58 | 2011-03-21 4:21 | MySQL Server: Optimizer | Closed (5652 days) | S5 | 5.5 | Any | Any | SUB SELECT OPTIMIZATION |
| 57576 | 2010-10-19 16:30 | 2015-10-12 16:36 | MySQL Cluster: Cluster (NDB) storage engine | Closed (3986 days) | S5 | mysql-5.1-telco-7.0 | Any | Any | --connect-timeout option for ndb_* tools |
| 57693 | 2010-10-24 14:26 | 2011-02-16 23:44 | MySQL Server: Config Wizard | Closed (5794 days) | S5 | 5.1.51 & 5.5.6 | Windows (32 bit (86)) | Any | mysql server instance configuration wizard freezes |
| 57870 | 2010-10-31 12:43 | 2011-02-16 23:44 | MySQL Workbench: Modeling | Closed (5793 days) | S5 | 5.2.29 | Windows (Vista) | Any | waiting |
| 58287 | 2010-11-18 13:13 | 2014-03-03 11:01 | MySQL Enterprise Backup | Closed (4574 days) | S5 | all, 3.5 | Any | Any | Skip unallocated InnoDB data pages |
| 58551 | 2010-11-29 9:33 | 2011-02-16 23:44 | MySQL Server: Documentation | Closed (5755 days) | S5 | 5.0, 5.1, (probably All) | Any | Any | Optimize table after load or insert into ... select gives 25% speed increase |
| 58733 | 2010-12-04 17:11 | 2011-02-16 23:44 | MySQL Workbench: SQL Editor | Closed (5754 days) | S5 | 5.2.30 | Other (Windows 7 x64) | Any | mysql workbench performance is very slow |
| 58745 | 2010-12-05 22:56 | 2011-05-02 14:56 | Tools: MTR / mysql-test-run | Closed (5610 days) | S5 | 5.5.8 | Any | Any | MTR spends long time checking for warnings |
| 58757 | 2010-12-06 14:19 | 2011-02-16 23:44 | Connector / NET | Closed (5725 days) | S5 | Windows | Any | Unneccessary Substrim+trim in MySqlTokenizer | |
| 58883 | 2010-12-11 17:12 | 2011-02-21 20:49 | Connector / NET | Closed (5680 days) | S5 | 5.1.31 | Any | Any | "SHOW VARIABLES" in heavy server is slow |
| 58974 | 2010-12-16 13:43 | 2011-02-16 23:44 | MySQL Server: InnoDB storage engine | Closed (5713 days) | S5 | mysql-5.5-innodb | Any | Any | ha_innobase:info() tries to lock some latches even if HA_STATUS_NO_LOCK is given |
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