| « Show Previous 30 Entries | Showing 31-42 of 42 (Edit, Save, CSV, Feed) |
| ID# | Date | Updated | Type | Status | Sev | Version | OS | CPU | Summary |
|---|---|---|---|---|---|---|---|---|---|
| 110111 | 2023-02-17 12:53 | 2023-02-20 12:35 | MySQL Server: Optimizer | Verified (1058 days) | S5 | 8.0.31 | Any | Any | Optimizer chooses worst plan when index condition pushdown opportunity |
| 110848 | 2023-04-27 15:04 | 2023-05-03 9:59 | MySQL Server: Optimizer | Verified (986 days) | S5 | 8.0.28, 8.0.33 | Any | Any | missing considering on order by and limit clause in cost calculation |
| 111431 | 2023-06-15 8:47 | 2023-06-26 14:48 | MySQL Server: Optimizer | Verified (943 days) | S3 | 8.0.33 | Ubuntu (22.04) | Other (x86_64) | condition_fanout_filter optimizer wrong result? |
| 112902 | 2023-10-31 14:39 | 2024-06-10 11:08 | MySQL Server: Optimizer | Verified (687 days) | S5 | 8.0.31, 8.0.35 | Linux (n.a.) | x86 (x86_64) | Optimizer in MySQL 8 is significantly slower on dependent subqueries than 5.7 |
| 115815 | 2024-08-12 2:56 | 2024-08-12 8:03 | MySQL Server: Optimizer | Verified (519 days) | S2 | 8.4.2 | Any | Any | Contribute by tencent: EXPLAIN FORMAT=TREE Incorrectly Shows Cost of Statement |
| 116335 | 2024-10-10 16:53 | 2025-09-10 1:54 | MySQL Server: Optimizer | Verified (459 days) | S5 | 8.0.39 | Any | Any | Multi-valued index isn't used with some range scans on composite indexes |
| 116710 | 2024-11-19 12:47 | 2024-11-20 11:02 | MySQL Server: Optimizer | Verified (419 days) | S3 | 8.0 | Any | Any | explain shows wrong cost value |
| 116937 | 2024-12-11 8:25 | 2024-12-11 15:33 | MySQL Server: Optimizer | Verified (398 days) | S3 | 8.0, 8.0.40 | Any | Any | estimation of REF is modified by index diving of INDEX MERGE |
| 117164 | 2025-01-09 6:17 | 2025-01-09 7:08 | MySQL Server: Optimizer | Verified (369 days) | S3 | 8.0.36, 8.0.40 | Any | Any | Range estimation (index dives) overestimates the rows count on large ranges. It almost doubles the actual number of rows |
| 118490 | 2025-06-19 13:00 | 2025-06-20 5:21 | MySQL Server: Optimizer | Verified (207 days) | S3 | master, 8.4 | Any | Any | hypergraph optimizer const folding caused inequivalent for join_cond_optim in Table_ref |
| 119442 | 2025-11-21 20:13 | 2025-11-27 4:53 | MySQL Server: Optimizer | Verified (47 days) | S5 | 8.4.4 | Any | Any | Optimizer fails to simplify ORDER BY when column is filtered by IS NULL, causing filesort |
| 119447 | 2025-11-23 8:34 | 2025-11-27 5:04 | MySQL Server: Optimizer | Verified (47 days) | S5 | 8.0.41 | CentOS | x86 | Prepare Statement execute much slower than normal select query |
| « Show Previous 30 Entries | Showing 31-42 of 42 (Edit, Save, CSV, Feed) |
