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| ID# | Date | Updated | Type | Status | Sev | Version | OS | CPU | Summary |
|---|---|---|---|---|---|---|---|---|---|
| 105044 | 2021-09-26 15:32 | 2021-09-27 12:59 | MySQL Server: InnoDB storage engine | Verified (941 days) | S5 | 8.0 | Any | Any | Added page szie judgment logic like btr_cur_optimistic_insert in btr_insert_into |
| 104978 | 2021-09-17 19:57 | 2021-09-20 9:02 | MySQL Server: Optimizer | Verified (948 days) | S5 | 8.0.26, 5.7.35 | Windows | Any | Adding Join Index forces query optimizer to use inefficient execution plan |
| 88671 | 2017-11-28 0:16 | 2017-12-04 15:41 | MySQL Server: Optimizer | Verified (2334 days) | S5 | 5.7.19 | Any | Any | ALL + BNL chosen over REF in query plan with a simple SELECT + JOIN |
| 55606 | 2010-07-28 15:25 | 2015-08-30 17:21 | MySQL Server: Charsets | Verified (4004 days) | S5 | 5.1.47, 5.1.50-bzr, 5.5.23, 5.6.11 | Linux | Any | Charset on ENUMS influencing performance too much |
| 80390 | 2016-02-16 10:14 | 2022-10-04 15:10 | MySQL Server: Optimizer | Verified (2991 days) | S5 | 5.6.30 | Any | Any | Clustered primary key included in index merge may cause higher execution times |
| 55248 | 2010-07-14 9:22 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (5034 days) | S5 | 5.1.43, 5.1.48 | Windows | Any | constant WHERE inefficient |
| 69219 | 2013-05-13 20:14 | 2013-05-13 20:32 | MySQL Server: Optimizer | Verified (4000 days) | S5 | 5.6.12 | Any | Any | CREATE TEMPORARY TABLE ... SELECT is slower on 5.6 than on 5.1 |
| 108863 | 2022-10-24 16:40 | 2024-03-15 8:49 | MySQL Server: Optimizer | Verified | S5 | 8.0.31 | Any | Any | different index picked when row is not found, marginally slower |
| 103869 | 2021-05-31 14:29 | 2021-06-03 10:21 | MySQL Server: Optimizer | Verified (1058 days) | S5 | 8.0.24, 8.0.25 | Any | Any | Duplicate computation of aggregate function when referred in HAVING clause |
| 74083 | 2014-09-25 18:11 | 2014-10-09 12:58 | MySQL Server: Optimizer | Verified (3486 days) | S5 | 5.6.20, 5.6.22 | Linux (CentOS 6.5) | Any | ENUM index scan is slower than INT index scan |
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