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ID# | Date | Updated | Type | Status | Sev | Version | OS | CPU | Summary |
---|---|---|---|---|---|---|---|---|---|
108833 | 2022-10-20 10:11 | 2022-10-20 12:35 | MySQL Server: Optimizer | Verified (526 days) | S5 | 8.0.31 | Ubuntu (20.04) | x86 | Suspicious Estimated Rows |
58234 | 2010-11-16 16:26 | 2014-02-26 12:47 | MySQL Server: InnoDB storage engine | Verified (4485 days) | S5 | 5.1.49-r1, 5.5.20 | Any | Any | LENGTH() / OCTET_LENGTH() on BLOB field very slow |
63905 | 2012-01-02 23:47 | 2012-01-16 18:35 | MySQL Server: Optimizer | Verified (4456 days) | S5 | 5.1.60 | Windows | Any | handler_read_next is suprisingly high and slows queries |
78407 | 2015-09-11 12:45 | 2022-04-29 5:41 | MySQL Server: Optimizer | Verified (700 days) | S5 | 7.4.6/5.6.24, 5.7, 8.0 | Linux | Any | wrong index being used in subqueries? |
101391 | 2020-10-30 3:04 | 2020-11-19 16:59 | MySQL Server: Performance Schema | Verified (1226 days) | S5 | 8.0, 8.0.22 | Any | Any | Performance Schema storage engine doesn't use index optimizations on group by |
110998 | 2023-05-11 15:33 | 2023-12-01 6:49 | MySQL Server: Optimizer | Verified (317 days) | S5 | 8.0.20+, 8.0.33 | Linux | Any | Performance regression with SELECT query when sorting on limited fields |
108852 | 2022-10-22 2:45 | 2022-10-22 5:43 | MySQL Server: Optimizer | Verified (524 days) | S5 | 8.0.31 | Ubuntu (20.04) | x86 | Suspicious Estimated Rows by DISTINCTROW |
107700 | 2022-06-29 11:18 | 2022-08-08 22:48 | MySQL Server: InnoDB storage engine | Verified (612 days) | S5 | 8.0.29 | Any | Any | Performance of Temptable is worse than Memory in GROUP BY scenario |
99994 | 2020-06-26 7:57 | 2020-06-26 13:08 | MySQL Server: Optimizer | Verified (1372 days) | S5 | 8.0 | Any | Any | Index range scan is chosen where table scan takes 40% less time |
89379 | 2018-01-24 11:41 | 2022-03-31 8:21 | MySQL Server: Performance Schema | Verified (2256 days) | S5 | 5.7.20, 5.7.21 | Any | Any | summary_by_user tables get extremely slow with many users. |
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