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| ID# | Date | Updated | Type | Status | Sev | Version | OS | CPU | Summary |
|---|---|---|---|---|---|---|---|---|---|
| 121010 | 2026-07-27 7:15 | 2026-07-27 7:15 | MySQL Server: User-defined functions ( UDF ) | Open | S2 | 8.4.7-7 | Any | Any | Contribution by ByteDance RDS MySQL team: mysqld crashes on keyring_key_store UDF return-type mismatch |
| 121011 | 2026-07-27 9:52 | 2026-07-27 14:18 | MySQL Server: Optimizer | Verified (29 days) | S3 | 8.0.46, 8.4.10, 9.7.1 | MacOS | ARM | subquery_to_derived causes wrong result with GROUP BY ... WITH ROLLUP |
| 121012 | 2026-07-27 9:55 | 2026-07-27 14:15 | MySQL Server: Optimizer | Verified (29 days) | S3 | 8.0.46, 8.4.10, 9.7.1 | MacOS | ARM | subquery_to_derived bypasses only_full_group_by check |
| 121013 | 2026-07-27 9:57 | 2026-07-27 14:00 | MySQL Server: Optimizer | Verified (29 days) | S3 | 9.7.1 | MacOS | ARM | subquery_to_derived causes row count mismatch with window function + LEFT JOIN |
| 121014 | 2026-07-27 9:59 | 2026-07-29 6:00 | MySQL Server: Optimizer | Duplicate (27 days) | S3 | 8.4.10 | MacOS | ARM | semijoin=off causes missing ROLLUP row with IN subquery + HAVING |
| 121016 | 2026-07-27 22:53 | 2026-07-27 22:53 | MySQL Server: Group Replication | Open (29 days) | S4 | 8.0.46, 8.4.10 | Any | Any | Primary switchover blocks on read-only/idle transactions and gives no observability when it waits or times out |
| 121017 | 2026-07-28 5:06 | 2026-07-29 4:26 | MySQL Server: Optimizer | Verified (27 days) | S3 | 9.7.1 | MacOS | ARM | subquery_to_derived drops LIMIT 1 from non-equality scalar subqueries |
| 121018 | 2026-07-28 5:43 | 2026-07-29 6:07 | MySQL Server: Optimizer | Verified (27 days) | S2 | 9.7.1 | MacOS | ARM | subquery_to_derived produces wrong EXISTS/NOT EXISTS results with LIMIT (silent corruption) |
| 121019 | 2026-07-28 6:04 | 2026-08-10 5:53 | MySQL Server: Optimizer | Verified (15 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | MacOS | ARM | subquery_to_derived + semijoin=off produces wrong WHERE-clause EXISTS results with LIMIT (dual boundary interaction, sil |
| 121020 | 2026-07-28 6:11 | 2026-07-29 9:47 | MySQL Server: Optimizer | Verified (27 days) | S2 | 9.7.1 | MacOS | ARM | subquery_to_derived transforms LIMIT 1 into MIN aggregate when subquery is inside derived table (= fast-path context fai |
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