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| ID# | Date | Updated | Type | Status | Sev | Version | OS | CPU | Summary |
|---|---|---|---|---|---|---|---|---|---|
| 118536 | 2025-06-26 17:55 | 2025-06-27 7:24 | MySQL Server: Optimizer | Analyzing (14 days) | S2 | 8.0.40, 9.3.0 | Linux (RDS, Docker) | Any (Tested on x86_64 and aarch64) | Concurrent CTE queries cause erroneous missing temporary table errors |
| 118217 | 2025-05-16 16:11 | 2025-05-26 10:17 | MySQL Server: Optimizer | Analyzing (46 days) | S1 | 8.4.5 | Ubuntu | x86 | Issues with the NULLIF function. |
| 86215 | 2017-05-08 13:35 | 2017-07-11 22:44 | MySQL Server: Optimizer | Analyzing (2922 days) | S5 | 8.0.1 | Any | Any | MySQL is much slower in 5.7 vs 5.6 |
| 24770 | 2006-12-02 0:37 | 2018-09-09 20:45 | MySQL Server: Optimizer | In progress (5226 days) | S5 | 5.1 | Any (all) | Any | update with subquery slow |
| 48703 | 2009-11-11 21:58 | 2022-09-04 20:45 | MySQL Server: Optimizer | In progress (5513 days) | S3 | 5.0+ | Any | Any | nontrivial ORDER/GROUP BY expressions: ambiguous statements not detected |
| 24251 | 2006-11-13 10:58 | 2018-09-09 20:45 | MySQL Server: Optimizer | In progress (5709 days) | S5 | 5.0.30-BK, 5.1.12 | Linux (Linux, Win XP SP2) | Any | Non-optimal choice of indexes for queries |
| 118481 | 2025-06-18 20:04 | 2025-07-03 18:30 | MySQL Server: Optimizer | Need Feedback (8 days) | S3 | Mysql 8.4.5 | Linux (Amazon Linux (AWS RDS managed)) | Any | MySQL 8.4.5 chooses suboptimal index for UPDATE query, leading to deadlocks and performance degradation |
| 118264 | 2025-05-25 15:04 | 2025-05-25 15:04 | MySQL Server: Optimizer | Open | S2 | 9.3.0 | Ubuntu | Any | Performance bug in SEMI JOIN with empty tables |
| 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 |
| 44549 | 2009-04-29 17:47 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified | S3 | 5.0.80, 5.1.34 | Any | Any | optimizer incorrectly chooses table scan and filesort over index |
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