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| ID# | Date | Updated | Type | Status | Sev | Version | OS | CPU | Summary |
|---|---|---|---|---|---|---|---|---|---|
| 121454 | 2026-10-08 7:48 | 2026-10-14 7:57 | MySQL Server: Optimizer | Verified (8 days) | S3 | 8.0.46 | Any | Any | Constant folding of a LEFT JOIN right-table expression column ignores NULL semantics, causing wrong NOT EXISTS results |
| 121468 | 2026-10-09 12:17 | 2026-10-13 6:16 | MySQL Server: Optimizer | Verified (9 days) | S2 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Linux | Any | Row IN returns NULL instead of FALSE when a candidate contains a CTE scalar subquery |
| 121475 | 2026-10-10 16:06 | 2026-10-13 6:07 | MySQL Server: GIS | Verified (9 days) | S3 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Windows | Any | ST_Within returns different results when a geographic SPATIAL index is forced |
| 121476 | 2026-10-11 15:27 | 2026-10-13 6:05 | MySQL Server: Optimizer | Verified (9 days) | S2 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Ubuntu (24.04) | Any (x86_64) | Wrong result: join on "a = b AND a <=> b" returns (NULL, NULL) when an index lookup is used |
| 121479 | 2026-10-11 15:43 | 2026-10-13 5:59 | MySQL Server: Optimizer | Verified (9 days) | S2 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Ubuntu (24.04) | x86 (x86_64) | ERROR 1815 "Internal error: Key not found" for IN subquery comparing a unique key with (out-of-range constant < column) |
| 121480 | 2026-10-11 15:44 | 2026-10-15 9:37 | MySQL Server: Optimizer | Verified (7 days) | S2 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Ubuntu (24.04) | x86 (x86_64) | Wrong result with subquery materialization: lookup on <auto_distinct_key> converts the probe value to the key type |
| 121482 | 2026-10-11 15:47 | 2026-10-13 5:25 | MySQL Server: Optimizer | Verified (9 days) | S2 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Ubuntu (24.04) | Any (x86_64) | Wrong result: with SQL_BUFFER_RESULT, HAVING COUNT(*) on a query without GROUP BY is evaluated as if COUNT(*) were 0 |
| 121489 | 2026-10-12 15:42 | 2026-10-12 15:54 | Shell Upgrade Checker | Verified | S3 | 9.7.1 | Any | Any | Upgrade checker: mysql_native_password=ON in option file not flagged for 9.x target |
| 121490 | 2026-10-12 16:39 | 2026-10-14 8:11 | MySQL Server: Optimizer | Verified (8 days) | S2 | 26.7.0, 26.10.0-er | Linux | Any | Wrapping a correlated scalar subquery in CASE changes its result when the outer aggregate has no matching rows |
| 121492 | 2026-10-13 0:27 | 2026-10-13 15:20 | Shell Upgrade Checker | Verified (9 days) | S3 | 26.7.1, 9.7.1, 8.4.10 | Any | Any | Upgrade checker misses most FLOAT/DOUBLE AUTO_INCREMENT columns, so the 8.4 upgrade aborts after a clean check |
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