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| ID# | Date | Updated | Type | Status | Sev | Version | OS | CPU | Summary |
|---|---|---|---|---|---|---|---|---|---|
| 8113 | 2005-01-24 15:43 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (6002 days) | S5 | 5.0, 5.1, azalea bzr | Any | Any | Select with between optimization |
| 8662 | 2005-02-21 21:31 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (5898 days) | S5 | 6.0.14, 5.1.12-BK, 4.1.10 | Any | Any | optimizer, query takes 3 to 10 times as long when using index |
| 15907 | 2005-12-21 15:23 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (5883 days) | S5 | 5.0.19-BK, 5.0.13, 6.0.14-bzr | Linux (Linux) | Any | Binary comparison ignores indexes |
| 17259 | 2006-02-09 2:23 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (6290 days) | S5 | 5.0.15, 6.0.7 | Linux (Linux) | Any | Query optimizer chooses wrong index |
| 20111 | 2006-05-28 10:57 | 2014-01-24 13:26 | MySQL Server: Optimizer | Verified (4382 days) | S5 | 4.1.19-log | Linux (Linux) | Any | named columns used in subqueries hinder optimisation of LIKE, BETWEEN, range |
| 24251 | 2006-11-13 10:58 | 2018-09-09 20:45 | MySQL Server: Optimizer | In progress (5905 days) | S5 | 5.0.30-BK, 5.1.12 | Linux (Linux, Win XP SP2) | Any | Non-optimal choice of indexes for queries |
| 24770 | 2006-12-02 0:37 | 2018-09-09 20:45 | MySQL Server: Optimizer | In progress (5422 days) | S5 | 5.1 | Any (all) | Any | update with subquery slow |
| 26832 | 2007-03-04 18:17 | 2011-04-05 14:46 | MySQL Server: Optimizer | Verified (5407 days) | S5 | 5.5 | Any | Any | ENUM types not optimized |
| 30342 | 2007-08-09 18:52 | 2015-10-07 14:54 | MySQL Server: Optimizer | Verified (3761 days) | S5 | 5.0.37, 5.6.17 | Any | Any | Equality propagation can make optimization much slower |
| 31446 | 2007-10-08 12:14 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (6308 days) | S5 | 5.0.44, 5.0.37, 6.0.2 Alpha | Any | Any | Inefficient index use with order by and joins |
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