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| ID# | Date | Updated | Type | Status | Sev | Version | OS | CPU | Summary |
|---|---|---|---|---|---|---|---|---|---|
| 114237 | 2024-03-06 6:57 | 2024-03-06 8:30 | MySQL Server: Optimizer | Verified (43 days) | S5 | 8.2.0, 8.3.0 | Any | Any | Unexpected Cardinality by Index |
| 68979 | 2013-04-17 3:47 | 2018-07-11 15:11 | MySQL Server: Optimizer | Verified (3984 days) | S5 | 5.6.10 | Linux | Any | performance regression of MySQL 5.6.10? |
| 68413 | 2013-02-18 2:45 | 2013-09-25 2:58 | MySQL Server: Performance Schema | Verified (3858 days) | S5 | 5.6.10, 5.6.13 | Any | Any | performance_schema overhead is at least 10% |
| 65177 | 2012-05-02 9:43 | 2020-05-03 20:45 | MySQL Server: Optimizer | Verified (4364 days) | S5 | 5.1,5.5 | Any | Any | perromance issue of "order by rand()" |
| 60811 | 2011-04-08 23:41 | 2020-08-15 10:10 | MySQL Server: General | Verified (4757 days) | S5 | 5.0.93, 5.5.12, 5.0.77-4.el5_5.4 | Any (RHEL 5.5, Mac OS X) | Any | slow timezone functions |
| 60023 | 2011-02-08 21:45 | 2014-05-22 12:13 | MySQL Server: Optimizer | Verified | S5 | 5.5.8 , 5.1.51 | Any | Any | No Loose Index Scan for GROUP BY / DISTINCT on InnoDB partitioned table |
| 55248 | 2010-07-14 9:22 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (5027 days) | S5 | 5.1.43, 5.1.48 | Windows | Any | constant WHERE inefficient |
| 50367 | 2010-01-15 14:12 | 2011-02-16 23:44 | MySQL Server: General | Verified (5145 days) | S5 | 5.1.42, 5.1 bzr | Any (MS Windows 32 bits, Mac) | Any | REPLACE has quadradic computational complexity on windows server (but not linux) |
| 33381 | 2007-12-19 19:27 | 2018-09-09 20:45 | MySQL Server: Data Types | Verified (5308 days) | S5 | 5.0.45, 5.0.52, 5.1.40 | Linux | Any | Temporary table created on disk when it should be in ram |
| 30342 | 2007-08-09 18:52 | 2015-10-07 14:54 | MySQL Server: Optimizer | Verified (3116 days) | S5 | 5.0.37, 5.6.17 | Any | Any | Equality propagation can make optimization much slower |
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