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| ID# | Date | Updated | Type | Status | Sev | Version | OS | CPU | Summary |
|---|---|---|---|---|---|---|---|---|---|
| 121151 | 2026-08-22 2:15 | 2026-08-24 4:36 | MySQL Server: Documentation | Open (27 days) | S3 | 8.4.5 | Any | Any | InnoDB Locking docs don't qualify the unique-index equality gap-lock guarantee for IN (...) lists |
| 121152 | 2026-08-22 6:09 | 2026-08-25 6:46 | MySQL Server: Optimizer | Verified (26 days) | S3 | 9.2 | Any | Any | CTE merge incorrectly loses the first alias when a BIT column is projected twice with different aliases |
| 121153 | 2026-08-22 6:36 | 2026-08-22 10:52 | MySQL Server: Data Types | Not a Bug (29 days) | S2 | 9.7.1 | Any | Any | Materializing a UNION prefix in a CTE changes TIME values in the final UNION result |
| 121154 | 2026-08-22 10:17 | 2026-08-25 7:12 | MySQL Server: Optimizer | Duplicate (26 days) | S2 | 9.7.1 | Any | Any | CTE derived merge incorrectly preserves a NULL-complemented LEFT JOIN row rejected by the WHERE predicate |
| 121155 | 2026-08-22 15:02 | 2026-08-26 4:39 | MySQL Server: Optimizer | Not a Bug (25 days) | S2 | 9.7.1 | Any | Any | MySQL loses LEFT JOIN preserved rows when an empty temporary table is used with DISTINCT and a window function |
| 121157 | 2026-08-23 6:37 | 2026-08-25 9:36 | MySQL Server: Optimizer | Verified (26 days) | S1 | 8.0.46, 8.4.11, 9.7.2 | Any | Any | Timezone-dependent generated column breaks UNIQUE and makes table unrestorable |
| 121158 | 2026-08-23 6:41 | 2026-08-26 3:09 | MySQL Server: InnoDB storage engine | Open (25 days) | S1 | 9.7.1 | Any | Any | ALTER COLLATE skips validation of UNIQUE functional index, leaving duplicate keys |
| 121160 | 2026-08-23 7:40 | 2026-08-31 20:43 | MySQL Server | Not a Bug (20 days) | S2 | 9.7.1 | Any | Any | VIEW materialization changes AVG(INT) decimal scale across UNION ALL |
| 121162 | 2026-08-23 7:59 | 2026-08-23 7:59 | MySQL Server: Partitions | Open | S1 | 9.7.1 | Any | Any | EXCHANGE PARTITION definition check ignores expressions and CHECK constraints |
| 121163 | 2026-08-23 8:00 | 2026-08-23 8:58 | MySQL Server: Command-line Clients | Open (28 days) | S1 | 9.7.1 | Any | Any | mysqldump discards time_zone and sql_mode, silently changing generated column data |
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