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| ID# | Date | Updated | Type | Status | Sev | Version | OS | CPU | Summary |
|---|---|---|---|---|---|---|---|---|---|
| 31901 | 2007-10-29 2:51 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (6571 days) | S5 | 5.0.45 | Any | Any | read_rnd_buffer_size doesn't seem to be used as written in Reference Manual |
| 34310 | 2008-02-05 14:51 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (4436 days) | S5 | 5.0.51a-log, 5.0.54, 5.6.14 | Linux | Any | Optimizer is inefficient by using ORDER BY function() and LIMIT |
| 36817 | 2008-05-20 13:19 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (6063 days) | S5 | 5.0.54a,5.1.19, 5.1.25, 5.0.60, 5.5 | Any | Any | Non optimal index choice, depending on index creation order |
| 37264 | 2008-06-07 22:35 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (6325 days) | S5 | 5.1.24-rc 5.1.29-rc 5.1.30 | Any | Any | MySQL wrongly uses filesort |
| 38251 | 2008-07-21 0:29 | 2020-05-03 20:45 | MySQL Server: Optimizer | Verified (6412 days) | S5 | 5.0.51 | Any | Any | Useless external queries should be ignored |
| 38550 | 2008-08-04 21:47 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (6325 days) | S5 | 5.0.60, 5.1 | Any | Any | multiple optimizer bugs for queries with references from preceding table |
| 41220 | 2008-12-04 9:59 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (6019 days) | S5 | 5.1.30, 5.0, 5.1, azalea bzr | Any | Any | LEFT JOIN with compound clause uses table scan, while INNER JOIN uses indexes |
| 42808 | 2009-02-12 22:17 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (6205 days) | S5 | 4.1, 5.0, 5.1 | Any | Any | Execution Plan Cache |
| 42948 | 2009-02-17 23:02 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (6187 days) | S5 | 5.0.67-0ubuntu6, 6.0.11 | Linux (Ubuntu 8.10) | Any | MySQL Optimizer does not properly use Indexes on Views with "Group By" |
| 45776 | 2009-06-26 7:17 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (6072 days) | S5 | mysql-5.1.35 | Linux | Any | "OR" condition on SPATIAL index not optimized |
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