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| ID# | Date | Updated | Type | Status | Sev | Version | OS | CPU | Summary |
|---|---|---|---|---|---|---|---|---|---|
| 121493 | 2026-10-13 7:22 | 2026-10-13 14:51 | Shell Upgrade Checker | Verified | S3 | 8.0.36 | Red Hat | x86 | MySQL Shell Upgrade Checker reports 3 errors but output identifies only 1 actual error during upgrade validation |
| 121492 | 2026-10-13 0:27 | 2026-10-13 15:20 | Shell Upgrade Checker | Verified | 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 |
| 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 |
| 121482 | 2026-10-11 15:47 | 2026-10-13 5:25 | MySQL Server: Optimizer | Verified | 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 |
| 121479 | 2026-10-11 15:43 | 2026-10-13 5:59 | MySQL Server: Optimizer | Verified | 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) |
| 121476 | 2026-10-11 15:27 | 2026-10-13 6:05 | MySQL Server: Optimizer | Verified | 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 |
| 121475 | 2026-10-10 16:06 | 2026-10-13 6:07 | MySQL Server: GIS | Verified | 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 |
| 121468 | 2026-10-09 12:17 | 2026-10-13 6:16 | MySQL Server: Optimizer | Verified | 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 |
| 121442 | 2026-10-07 0:25 | 2026-10-09 21:06 | Connector / NET | Verified (4 days) | S3 | Any | Any | DATETIME data type fields exposed as MySqlDateTime through the ADO.NET driver are not IFormattable | |
| 121433 | 2026-10-04 5:28 | 2026-10-13 9:45 | MySQL Server: Optimizer | Verified | S2 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Any | Any | Index on NO PAD column drops rows for "= ... COLLATE utf8mb4_bin" (PAD SPACE) |
| 121432 | 2026-10-04 5:27 | 2026-10-13 9:37 | MySQL Server: JSON | Verified | S2 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Any | Any | Multi-valued index on CAST(... AS UNSIGNED ARRAY) rounds 1.5 to 2; DELETE ... WHERE 2 MEMBER OF removes it |
| 121431 | 2026-10-04 5:24 | 2026-10-13 9:30 | MySQL Server: Optimizer | Verified | S2 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Any | Any | Index on BIGINT hides rows equal to a DOUBLE constant just above BIGINT max (range optimizer: value_out_of_range) |
| 121430 | 2026-10-04 0:02 | 2026-10-05 8:55 | MySQL Server: Optimizer | Verified (8 days) | S2 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Any | Any | ORDER BY on a 64-member SET column sorts values containing member 64 as negative |
| 121429 | 2026-10-03 23:57 | 2026-10-05 8:48 | MySQL Server: Optimizer | Verified (8 days) | S2 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Any | Any | Row with BIGINT 2^53+1 is in neither IN (subquery) nor NOT IN when compared to a DOUBLE |
| 121428 | 2026-10-03 22:50 | 2026-10-05 7:02 | MySQL Workbench: SQL Editor | Verified (8 days) | S2 | MySQL Workbench 26.7.0 | Windows | Any | SQL Editor executes the next statement when selection includes whitespace after the semicolon |
| 121426 | 2026-10-02 15:38 | 2026-10-05 8:43 | MySQL Server: JSON | Verified (8 days) | S2 | 9.7.2, 26.07 | Windows (Windows 11) | Any (x86_64) | JSON Duality View INSERT silently drops a nested child row on secondary UNIQUE conflict |
| 121424 | 2026-10-02 11:25 | 2026-10-05 8:39 | MySQL Server: DML | Verified (8 days) | S2 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Any | Any | WITH LOCAL CHECK option on a join view ignores its own ON condition |
| 121423 | 2026-10-02 10:58 | 2026-10-05 7:13 | MySQL Server: DML | Verified (8 days) | S2 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Any | Any | BEFORE INSERT trigger causes ER_BAD_NULL_ERROR on NOT NULL generated column |
| 121422 | 2026-10-02 8:29 | 2026-10-05 7:03 | MySQL Workbench: SQL Editor | Verified (8 days) | S2 | 26.7.1 | Any | Any | Workbench 26.7.1 reverses Ctrl+Enter / Ctrl+Shift+Enter shortcuts, creating risk of unintended script execution |
| 121421 | 2026-10-02 4:08 | 2026-10-05 7:02 | MySQL Server: Optimizer | Verified (8 days) | S3 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Windows ( x86_64) | Any | Possible incorrect error under derived condition pushdown with NULL and DATE predicates |
| 121419 | 2026-10-01 18:25 | 2026-10-05 8:34 | MySQL Server: Optimizer | Verified (8 days) | S2 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Linux | Any | `IN (SELECT NULL WHERE tautology) IS TRUE` returns NULL instead of 0 |
| 121412 | 2026-09-30 18:08 | 2026-10-02 15:11 | MySQL Server: Replication | Verified (11 days) | S3 | Any | Any | Contribution: Initialize binlog event scalar members | |
| 121411 | 2026-09-30 17:42 | 2026-10-01 5:09 | MySQL Server: Optimizer | Verified (12 days) | S2 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Linux | Any | Wrapping SUM(j) in CASE WHEN TRUE drops three rows from a DISTINCT ROLLUP query with a window function |
| 121410 | 2026-09-30 15:28 | 2026-10-02 17:22 | MySQL Server: Replication | Verified (11 days) | S3 | 26.7.0 | Any | Any | CSA applier: Cached_event_payload leaks its event buffer when destroyed without decode() |
| 121404 | 2026-09-30 7:03 | 2026-10-08 8:58 | MySQL Server: Optimizer | Verified (5 days) | S2 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Linux | Any | Wrong result: row constructor comparison in WHERE returns no rows when a tuple element is a null-extended outer-join col |
| 121403 | 2026-09-30 5:56 | 2026-10-01 5:04 | MySQL Server: Optimizer | Verified (12 days) | S2 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Linux | Any | sql_buffer_result=ON causes a CASE-wrapped IN subquery to return an extra row |
| 121402 | 2026-09-30 3:07 | 2026-09-30 8:42 | MySQL Server: Optimizer | Verified (13 days) | S3 | 8.0.46 | Ubuntu (Ubuntu 22.04) | Any | NOT EXISTS subquery with tautological OR condition ignores NULL semantics |
| 121401 | 2026-09-30 2:15 | 2026-09-30 7:30 | MySQL Server: Optimizer | Verified (13 days) | S5 | 8.0.46, 8.4.11, 9.7.2, 26.07 | Ubuntu (22.04.4 LTS) | x86 (Intel(R) Xeon(R) Gold 5220 CPU @ 2.20GHz) | Join-order enumeration and final AccessPath disagree on equality-derived filter cost, causing ~230x slowdown |
| 121399 | 2026-09-29 18:04 | 2026-09-30 7:26 | MySQL Server: Optimizer | Verified (13 days) | S2 | 9.7.2, 26.07 | Linux | Any | subquery_to_derived=on incorrectly filters rows for ALL over an empty subquery inside CASE |
| 121398 | 2026-09-29 17:27 | 2026-09-30 8:45 | MySQL Server: Optimizer | Verified (13 days) | S2 | 26.10.0 | Linux | Any | UNION loses a distinct DATE value after changing sql_mode on a partitioned table |
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