| Showing all 343 (Edit, Save, CSV, Feed) |
| ID# | Date | Updated | Type | Status | Sev | Version | OS | CPU | Summary |
|---|---|---|---|---|---|---|---|---|---|
| 120326 | 2026-04-22 19:32 | 2026-04-23 6:32 | MySQL Server: Data Dictionary | Verified (124 days) | S2 | 8.4 | Any | Any | Upgrade fails on partitioned tables due to stale THD error from stored procedure compilation |
| 120482 | 2026-05-15 10:46 | 2026-05-24 15:09 | MySQL Server: Data Dictionary | Open (98 days) | S2 | 8.4.9 | Linux (Red Hat Enterprise Linux 9.6 (Plow ) | x86 | Upgrade from 8.0.35 to 8.0.45 or 8.4.9 failed due [ERROR] [MY-013135] and [Warning] [MY-014078] |
| 121030 | 2026-07-29 21:55 | 2026-07-31 7:56 | MySQL Server: Data Dictionary | Verified (25 days) | S2 | 8.0.42+ and 8.4.5+ | Any | Any | Upgrade fails with MY-013135 on tables with CHECK constraints/generated columns/partitions |
| 121047 | 2026-08-01 1:37 | 2026-08-01 1:37 | MySQL Server: Data Dictionary | Open | S2 | 8.0 | Linux | x86 | Replica crash in `dd_first_index` on empty `dd::Table::indexes()` collection under concurrent DD |
| 121117 | 2026-08-18 12:41 | 2026-08-18 12:41 | MySQL Server: Data Dictionary | Open | S1 | 8.0 all version | Linux | x86 | SIGSEGV in rec_convert_dtuple_to_rec_comp during ALTER TABLE ... COALESCE PARTITION on a partitioned InnoDB |
| 118888 | 2025-08-25 7:19 | 2026-08-01 11:08 | MySQL Server: DDL | Closed (24 days) | S2 | 8.0.43/8.4.6 | Any | Any | DDL operation fills the entire disk space and eventually fails |
| 119241 | 2025-10-27 11:25 | 2025-10-27 11:29 | MySQL Server: DDL | Open (302 days) | S2 | 8.0.41 | Any | Any | Exception when creating index instance |
| 119467 | 2025-11-27 6:05 | 2025-11-27 6:05 | MySQL Server: DDL | Open | S2 | 8.0.41 | Any | Any | Creating the index directly works, but the operation fails when wrapped in an IF() function, |
| 119796 | 2026-01-27 19:12 | 2026-01-29 4:32 | MySQL Server: DDL | Can't repeat (208 days) | S2 | 8.0.35 | Any | Any | Encrypted data changes when adding columns |
| 119996 | 2026-03-06 11:07 | 2026-07-14 11:42 | MySQL Server: DDL | Closed (42 days) | S2 | 9.6 | Any | Any | Row delete from a table with selfreferental FK breaks replication |
| 120244 | 2026-04-10 12:40 | 2026-04-10 13:51 | MySQL Server: DDL | Open | S1 | 9.6.0 | Any | Any | Unexpected error `'0' for column '' at row -1` triggered by ALTER |
| 120245 | 2026-04-10 13:14 | 2026-04-10 13:55 | MySQL Server: DDL | Open | S1 | 9.6.0 | Any | Any | Unexpected error `Got error -1 - 'Unknown error -1' from storage engine` |
| 120251 | 2026-04-12 11:47 | 2026-04-13 4:58 | MySQL Server: DDL | Verified (134 days) | S2 | 9.6.0 | Any | Any | REPLACE INTO silently bypasses ON DELETE FK rules with innodb_native_foreign_keys=OFF |
| 120323 | 2026-04-22 12:51 | 2026-08-05 15:56 | MySQL Server: DDL | Closed (20 days) | S1 | 8.4.9 | Debian (12) | x86 | Regression : "Row size too large (> 8126)" error with table using InnoDb DYNAMIC row format |
| 120356 | 2026-04-27 14:52 | 2026-04-27 17:21 | MySQL Server: DDL | Duplicate (120 days) | S2 | 8.0.46 | Linux (Debian 12) | x86 | ERROR 1118 Row size too large (> 8126) on 8.0.46 |
| 120370 | 2026-04-28 16:33 | 2026-06-23 3:32 | MySQL Server: DDL | Duplicate (63 days) | S2 | 8.0.46 | Any | Any | Regression (from 8.0.45) on Row size too large |
| 121158 | 2026-08-23 6:41 | 2026-08-23 7:55 | MySQL Server: DDL | Open (2 days) | S1 | 9.7.1 | Any | Any | ALTER COLLATE skips validation of UNIQUE functional index, leaving duplicate keys |
| 119204 | 2025-10-22 8:10 | 2025-10-23 10:04 | MySQL Server: DML | Verified (306 days) | S2 | 8.0,9.5 | Any | Any | The change of join order may lead to inconsistent update data |
| 119381 | 2025-11-13 8:14 | 2026-01-13 19:17 | MySQL Server: DML | Verified (224 days) | S2 | 8.0.43, 9.4.0 | Any | Any | Contribution by Tencent: Duplicate auto-increment values happened with partitioned tables and uk conflict |
| 119772 | 2026-01-25 11:30 | 2026-01-26 13:23 | MySQL Server: DML | Duplicate (212 days) | S2 | 8.0.45 | CentOS | Any | [8.0.45-debug] Lost connection to MySQL server during query |
| 119805 | 2026-01-29 3:21 | 2026-08-07 14:35 | MySQL Server: DML | Closed (42 days) | S2 | 8.0.45 | Any | Any | create_tmp_field assert fail |
| 119808 | 2026-01-29 14:44 | 2026-07-08 12:18 | MySQL Server: DML | Verified (48 days) | S2 | Any | Any | Error 3569 with HIGH_PRIORITY + VIEW + GROUP BY + FOR UPDATE | |
| 119820 | 2026-01-31 11:14 | 2026-01-31 12:37 | MySQL Server: DML | Not a Bug (206 days) | S2 | Any | Any | Update Temporary table: Can't reopen table | |
| 119821 | 2026-01-31 16:25 | 2026-02-01 12:58 | MySQL Server: DML | Not a Bug (205 days) | S2 | 8.0.45 | Any | Any | MySQL and TiDB return different results |
| 120185 | 2026-03-31 8:58 | 2026-04-06 4:47 | MySQL Server: DML | Can't repeat (141 days) | S2 | 8.0.32-debug | Any | Any | Assertion Failure in add_key_fields with Nested CTE |
| 120208 | 2026-04-03 7:57 | 2026-05-04 1:00 | MySQL Server: DML | No Feedback (114 days) | S1 | 8.0.28 | Any (Aurora MySQL 3.04.4) | Any | SIGSEGV crash in TABLE_LIST::query_block_id_for_explain() when running EXPLAIN on CTE (WITH clause) query |
| 120779 | 2026-06-25 20:16 | 2026-06-26 20:48 | MySQL Server: DML | Documenting (60 days) | S2 | 9.7.0 | Linux | Any | POW(x, NULL) returns 1 instead of NULL (NULL exponent ignored) |
| 120780 | 2026-06-25 20:19 | 2026-06-26 7:00 | MySQL Server: DML | Verified (60 days) | S2 | 9.7.0 | Linux | Any | Nested DATE_ADD on a date string adds spurious 00:00:00, drops WHERE rows |
| 120781 | 2026-06-25 20:22 | 2026-06-26 6:48 | MySQL Server: DML | Duplicate (60 days) | S2 | 9.7.0 | Linux | Any | DECIMAL BETWEEN returns NULL for every row evaluated after a NULL row |
| 120437 | 2026-05-11 8:47 | 2026-06-26 7:08 | MySQL Server: Information schema | Verified (60 days) | S2 | 8.0.35, 8.4.8, 9.3.0, 9.7.0 | Any | Any | information_schema.partitions returns UINT64_MAX (18446744073709551615) for DATA_LENGTH of partition dropped during conc |
| 120974 | 2026-07-21 18:54 | 2026-07-22 8:43 | MySQL Server: Information schema | Open (34 days) | S2 | 8.0.34-26 | Any | Any | Client connection kill command doesn't kill process |
| 119621 | 2026-01-05 11:11 | 2026-02-24 12:06 | MySQL Server: JSON | Verified (182 days) | S2 | 8.0.43 / 8.4.7 | Any | Any | query on partitioned table report "the JSON binary value contains invalid data" |
| 120263 | 2026-04-14 5:30 | 2026-04-14 10:56 | MySQL Server: JSON | Verified (133 days) | S2 | 8.0.45 | Any | Any | Inconsistent results for query with JSON_CONTAINS and CAST(... AS SIGNED) |
| 120269 | 2026-04-15 7:40 | 2026-06-08 9:29 | MySQL Server: JSON | Verified (78 days) | S1 | 8.0.45 | Any | Any | Wrong result in string comparison with JSON_UNQUOTE(JSON_EXTRACT(...)) |
| 120788 | 2026-06-26 11:11 | 2026-07-15 14:13 | MySQL Server: JSON | Closed (41 days) | S2 | 9.7.0 | Any | Any | JSON_VALUE RETURNING DATETIME DEFAULT returns a garbage date |
| 118904 | 2025-08-28 3:20 | 2025-09-04 11:46 | MySQL Server: Optimizer | Verified (358 days) | S2 | 8.0.41+ | Any | Any | Incorrect results could be returned when using index condition pushdown and Range checked for each record |
| 118912 | 2025-08-28 16:24 | 2025-09-04 11:48 | MySQL Server: Optimizer | Verified (358 days) | S1 | 8 and above, 8.0.42, 8.4.5, 9.3.0 | Any | Any | Mismatch in Column values with SUM of IFNULL vs IFNULL of SUM |
| 118913 | 2025-08-29 3:40 | 2025-09-01 10:19 | MySQL Server: Optimizer | Verified (358 days) | S2 | 8.0.41, 9.4.0 | Any | Any | queries have different results for non primary key table and table with primary key |
| 118916 | 2025-08-31 18:26 | 2025-09-05 8:21 | MySQL Server: Optimizer | Duplicate (354 days) | S2 | 9.4.0 | Any | Any | Incorrect result set when querying view with LEFT JOIN, COALESCE and EXISTS subquery |
| 118918 | 2025-09-01 7:30 | 2026-04-03 10:48 | MySQL Server: Optimizer | Duplicate (144 days) | S2 | 9.4.0 | Any | Any | Inconsistent NULL handling in CTE LEFT JOIN results |
| 118937 | 2025-09-04 4:36 | 2025-09-10 0:43 | MySQL Server: Optimizer | Verified (350 days) | S2 | 9.4.0 | Any | Any | LEFT JOIN with constant functions returns incorrect results when condition is ON FALSE |
| 118941 | 2025-09-05 8:19 | 2025-09-10 14:45 | MySQL Server: Optimizer | Verified (349 days) | S2 | 8.0.x, 8.4.x | Any | Any | Bug Report: DECIMAL(22,2) Column Comparison with -0.001 Excludes 0.00 Row |
| 118949 | 2025-09-05 13:57 | 2025-09-10 0:42 | MySQL Server: Optimizer | Verified (351 days) | S2 | 9.2.0 | Linux (ubuntu 20.04) | Any | MySQL 9.2.0: Complex CASE in JOIN makes INNER vs INTERSECT yield different rows |
| 118980 | 2025-09-10 2:52 | 2025-09-15 16:00 | MySQL Server: Optimizer | Verified (348 days) | S2 | MySQL8.0.41 | Any | Any | queries have different results using and without index |
| 118982 | 2025-09-10 6:55 | 2025-09-26 12:01 | MySQL Server: Optimizer | Not a Bug (333 days) | S1 | 9.4.0 | Linux | Any | Unexpected result of IN operator |
| 119022 | 2025-09-17 12:40 | 2025-09-23 0:51 | MySQL Server: Optimizer | Verified (337 days) | S2 | 9.4.0 | Any | Any | column value change cased by Union ALL |
| 119032 | 2025-09-18 7:52 | 2025-09-23 0:51 | MySQL Server: Optimizer | Verified (337 days) | S2 | 9.2.0 | Any | Any | Inconsistency with MySQL 8.0.36 in MySQL 9.2.0: Equivalent INTERSECT query does not match INNER JOIN result and returns |
| 119041 | 2025-09-19 8:19 | 2025-09-23 9:57 | MySQL Server: Optimizer | Verified (336 days) | S2 | 8.0.25 8.0.40 | Any | Any | statistics automatic update cause poor execution plan |
| 119049 | 2025-09-22 7:23 | 2025-09-22 7:53 | MySQL Server: Optimizer | Closed (337 days) | S2 | 8.0.41 | Linux (5.10.134-19.al8.x86_64) | x86 (x86_64) | Performance regression in 8.0.41 compared to 5.7.37 for queries using limit |
| 119059 | 2025-09-23 3:44 | 2025-09-25 16:07 | MySQL Server: Optimizer | Verified (336 days) | S2 | 9.2.0, 9.4.0 | Any | Any | Inconsistent result behavior when using EXCEPT equivalent NATRUAL JOIN |
| 119068 | 2025-09-25 8:43 | 2025-10-01 14:05 | MySQL Server: Optimizer | Verified (330 days) | S2 | 9.4.0 | Linux | x86 | RIGHT JOIN on VIEW with IN subquery returns incorrect non-NULL value instead of NULL |
| 119074 | 2025-09-26 4:46 | 2026-04-02 6:15 | MySQL Server: Optimizer | Duplicate (145 days) | S2 | 9.4.0 | Linux | x86 | Incorrect result with derived_condition_pushdown optimization in correlated subquery with LEFT JOIN ON FALSE |
| 119097 | 2025-09-30 9:04 | 2025-12-15 11:15 | MySQL Server: Optimizer | Verified (253 days) | S2 | MySQL 8.4.6 | Windows | Other (x64) | STRAIGHT_JOIN returns different results compared to INNER JOIN with identical conditions |
| 119100 | 2025-10-01 1:00 | 2026-04-02 6:17 | MySQL Server: Optimizer | Duplicate (145 days) | S2 | 9.4.0 | Linux | x86 | WHERE alias IS NULL Fails for Derived Column Using subquery |
| 119110 | 2025-10-07 5:19 | 2026-04-02 9:45 | MySQL Server: Optimizer | Duplicate (145 days) | S2 | 9.4.0 | Linux | x86 | Incorrect NULL filtering in CTE with UNION ALL over view containing LEFT JOIN on FALSE |
| 119117 | 2025-10-09 4:15 | 2025-12-16 9:22 | MySQL Server: Optimizer | Duplicate (252 days) | S2 | 8.4.6 | Windows | Other (x64) | INNER JOIN returns results when join condition evaluates to false |
| 119121 | 2025-10-09 11:06 | 2025-12-16 9:26 | MySQL Server: Optimizer | Duplicate (252 days) | S2 | 8.4.6 | Windows | Other (x64) | STRAIGHT_JOIN returns fewer rows than expected when ON condition is true for multiple rows |
| 119127 | 2025-10-10 11:58 | 2025-12-17 8:20 | MySQL Server: Optimizer | Verified (251 days) | S2 | 8.4.6 | Any | Any | INNER JOIN and INTERSECT of LEFT/RIGHT JOINs return different results when unique index is present |
| 119136 | 2025-10-13 3:14 | 2026-04-22 21:05 | MySQL Server: Optimizer | Closed (125 days) | S2 | 8.0 | Any | Any | Incompatible behavior between integer columns when comparing with datetime |
| 119139 | 2025-10-13 7:30 | 2025-12-18 8:56 | MySQL Server: Optimizer | Verified (250 days) | S1 | 9.4.0 | Any | Any | Unexpected error `Incorrect DECIMAL value: '0' for column '' at row -1` |
| 119140 | 2025-10-13 8:01 | 2026-01-06 14:56 | MySQL Server: Optimizer | Verified (231 days) | S1 | 8.4 | Any | Any | DISTINCT works inconsistently in normal SELECT and prepared statement for 0 and -0 |
| 119144 | 2025-10-13 12:49 | 2026-01-06 12:48 | MySQL Server: Optimizer | Verified (231 days) | S2 | 8.4.6 | Windows | Any (x64) | INNER JOIN and STRAIGHT_JOIN return different results with identical ABS function conditions |
| 119145 | 2025-10-13 12:53 | 2026-01-21 11:10 | MySQL Server: Optimizer | Duplicate (216 days) | S2 | 8.4.6 | Any (windows ) | Any (x64) | INNER JOIN and INTERSECT of LEFT/RIGHT JOINs return different results with complex boolean conditions |
| 119156 | 2025-10-15 2:01 | 2026-01-13 11:13 | MySQL Server: Optimizer | Verified (224 days) | S2 | 8.0.41 | CentOS | x86 | Query returns incorrect result (12 vs 2) when using FORCE INDEX compared to optimizer's automatic index selection, when |
| 119187 | 2025-10-18 4:41 | 2026-04-02 9:30 | MySQL Server: Optimizer | Duplicate (145 days) | S2 | 9.4.0 | Linux | x86 | CTE with correlated EXISTS subquery causes incorrect NULL handling in WHERE clause with IS NULL predicate |
| 119198 | 2025-10-20 19:44 | 2026-08-13 16:21 | MySQL Server: Optimizer | Closed (12 days) | S2 | 8.4.6 | Any | Any | Optimizer with reverse index range scan gives incorrect query result |
| 119220 | 2025-10-23 14:55 | 2025-11-07 9:22 | MySQL Server: Optimizer | Verified (291 days) | S2 | 8.4.6 | Any | x86 | Subquery materialization in LEFT JOIN ON clause loses WHERE conditions |
| 119386 | 2025-11-13 11:44 | 2026-01-15 12:35 | MySQL Server: Optimizer | Verified (222 days) | S1 | 9.4.0 | Any | Any | unexpected error "Can't write; duplicate key in table '/tmp/#sql1_372_1'" |
| 119444 | 2025-11-22 11:32 | 2026-02-05 20:32 | MySQL Server: Optimizer | Not a Bug (201 days) | S2 | any | Any | Any | Union with bound variable silently trims result |
| 119453 | 2025-11-24 14:12 | 2025-12-07 22:36 | MySQL Server: Optimizer | Verified (261 days) | S2 | 8.0 | Any | Any | DEFAULT(column) returns wrong result when column is to the right of left join |
| 119454 | 2025-11-24 16:04 | 2025-11-27 5:11 | MySQL Server: Optimizer | Verified (271 days) | S2 | 9.4.0 | Any | Any | Hash join has wrong result when the join equality involves FLOAT or DECIMAL column |
| 119470 | 2025-11-27 14:30 | 2025-11-28 13:06 | MySQL Server: Optimizer | Verified (270 days) | S1 | 8.0.44+ | Any | Any | sql injection |
| 119474 | 2025-11-29 9:29 | 2025-12-01 4:16 | MySQL Server: Optimizer | Verified (267 days) | S2 | 8.0.41 | Any | Any | Result error caused by the subquery_to_derived optimizer switch |
| 119485 | 2025-12-01 14:10 | 2025-12-02 5:32 | MySQL Server: Optimizer | Verified (266 days) | S2 | 9.5.0,8.0.41 | Any | Any | Wrong result with left joins |
| 119487 | 2025-12-01 14:45 | 2026-02-05 19:41 | MySQL Server: Optimizer | Verified (201 days) | S2 | 8.0.45 | Ubuntu (22.04) | Any | JOIN, STRAIGHT_JOON Return Different Results |
| 119488 | 2025-12-01 14:52 | 2025-12-02 4:37 | MySQL Server: Optimizer | Verified (266 days) | S2 | 9.4.0, 9.5.0 | Ubuntu (22.04) | Any | NTERSECT Bug: NULL-Handling Inconsistency Returns Non-Intersecting Row from Outer Joins with NULL Comparisons |
| 119491 | 2025-12-02 8:21 | 2025-12-08 21:10 | MySQL Server: Optimizer | Verified (260 days) | S1 | 8.4.7 | Any | Any | Incorrect results for make_set operation against longtext column |
| 119492 | 2025-12-02 11:57 | 2025-12-03 3:38 | MySQL Server: Optimizer | Closed (265 days) | S2 | 8.0.41 | Any | Any | Inconsistent data types of the IN condition in JOIN queries leads to incorrect query results. |
| 119498 | 2025-12-03 9:07 | 2026-01-09 1:00 | MySQL Server: Optimizer | No Feedback (229 days) | S1 | 8.4.7-TLS | Any | Any | The different sorting results are caused by the range query. |
| 119499 | 2025-12-03 15:20 | 2026-08-13 17:43 | MySQL Server: Optimizer | Closed (12 days) | S2 | 9.5.0,8.0.41 | Any | Any | Item_view_ref::used_tables() is wrong, leads to wrong query result |
| 119520 | 2025-12-06 17:55 | 2025-12-08 3:51 | MySQL Server: Optimizer | Verified (260 days) | S2 | 9.5.0 | Ubuntu (22.04) | Any | Inconsistent NULL and Negative Zero Handling in EXISTS Subquery with HAVING Clause |
| 119526 | 2025-12-09 3:13 | 2026-01-11 1:00 | MySQL Server: Optimizer | No Feedback (227 days) | S2 | 8.0.41 | Any | Any | Inconsistent query results caused by the NO_MERGE hint |
| 119528 | 2025-12-09 9:49 | 2025-12-10 12:38 | MySQL Server: Optimizer | Verified (258 days) | S2 | 8.0 | Any | Any | hash join result incorrect |
| 119530 | 2025-12-09 12:38 | 2025-12-11 9:31 | MySQL Server: Optimizer | Verified (257 days) | S1 | 8.4.7 | Any | Any | Incorrect results for NULLIF functions |
| 119541 | 2025-12-11 12:32 | 2026-08-13 14:48 | MySQL Server: Optimizer | Patch pending (256 days) | S2 | 8.0, 8.4, 9.5 | Any | Any | Performance regression due to record buffer in index range scan |
| 119582 | 2025-12-22 6:49 | 2025-12-22 19:27 | MySQL Server: Optimizer | Verified (246 days) | S2 | 8.0.44 | Any | Any | Inconsistency functional dependency in ONLY_FULL_GROUP_BY mode between derived tables and physical tables |
| 119588 | 2025-12-24 3:03 | 2025-12-26 17:23 | MySQL Server: Optimizer | Verified (242 days) | S1 | 8.0.44 | Any | Any | Incorrect result in JOIN with IN subquery |
| 119590 | 2025-12-24 6:41 | 2025-12-26 6:22 | MySQL Server: Optimizer | Verified (242 days) | S1 | 9.5.0 | Any | Any | EXCEPT (SELECT NULL) returns incorrect result (missing row) on DECIMAL primary key column |
| 119594 | 2025-12-24 14:03 | 2025-12-26 6:21 | MySQL Server: Optimizer | Verified (242 days) | S1 | 9.5.0 | Any | Any | INTERSECT (SELECT NULL) incorrectly returns non-NULL rows when column is PRIMARY KEY |
| 119597 | 2025-12-26 2:37 | 2025-12-26 17:57 | MySQL Server: Optimizer | Verified (242 days) | S1 | 8.0.44 | Any | Any | WHERE ... IN ... incorrectly returns rows |
| 119601 | 2025-12-28 11:55 | 2026-02-08 13:32 | MySQL Server: Optimizer | Verified (198 days) | S2 | 8.0.41 | CentOS | Any (x86) | Crash for show processlist when use cursor |
| 119603 | 2025-12-29 1:19 | 2026-01-04 20:40 | MySQL Server: Optimizer | Verified (233 days) | S2 | 8.0 | Any | Any | TRUE >= ALL(...) returns incorrect result (1) when comparing against a NOT NULL column |
| 119606 | 2025-12-29 14:23 | 2026-01-21 20:58 | MySQL Server: Optimizer | Duplicate (221 days) | S2 | 8.0.42 | Linux (Linux (x86_64)) | Any | Assertion failure in item_func.cc:3937: !unsigned_flag || !arg_val.is_negative() during JOIN optimization |
| 119619 | 2026-01-04 14:07 | 2026-01-04 21:17 | MySQL Server: Optimizer | Verified (233 days) | S1 | 8.0 | Any | Any | Incorrect results for REPLACE function |
| 119630 | 2026-01-06 7:59 | 2026-01-21 18:56 | MySQL Server: Optimizer | Duplicate (216 days) | S2 | 8.0.33 | Any (22.04) | Any | Optimizer incorrectly merges derived table with type conversion and WHERE clause, causing wrong query results |
| 119631 | 2026-01-06 12:13 | 2026-01-21 12:16 | MySQL Server: Optimizer | Duplicate (216 days) | S2 | 8.0.33 | Any (22.04) | Any | CTE with type conversion and WHERE condition in IN/EXISTS subquery returns all rows instead of filtered rows |
| 119639 | 2026-01-07 9:05 | 2026-01-21 21:05 | MySQL Server: Optimizer | Duplicate (216 days) | S2 | 8.0.42 | Any | Any | Assertion Failure in LEAST() Function with Unsigned Columns |
| 119646 | 2026-01-08 7:46 | 2026-01-21 20:24 | MySQL Server: Optimizer | Duplicate (216 days) | S2 | 8.0.33 | Ubuntu (22.04) | Any | View + Type Conversion + IN Subquery Returns Wrong Result |
| 119650 | 2026-01-09 2:04 | 2026-04-22 20:58 | MySQL Server: Optimizer | Closed (125 days) | S1 | 9.5.0 | Any | Any | IN operator returns unexpected result when one of values in the list is NULL |
| 119652 | 2026-01-09 5:20 | 2026-01-09 8:45 | MySQL Server: Optimizer | Not a Bug (228 days) | S2 | 9.5.0 | Windows | Any | Inconsistent behavior: Query throws "Incorrect arguments" vs returns Empty Set depending on execution plan |
| 119669 | 2026-01-13 13:27 | 2026-01-13 14:53 | MySQL Server: Optimizer | Verified (224 days) | S1 | 8.0.44 | Any | Any | Inconsistent behaviour between normal query and prepared statement |
| 119670 | 2026-01-13 13:46 | 2026-01-13 14:51 | MySQL Server: Optimizer | Verified (224 days) | S1 | 8.0.44 | Any | Any | Incorrect result caused by index |
| 119683 | 2026-01-14 15:35 | 2026-01-15 12:57 | MySQL Server: Optimizer | Verified (222 days) | S1 | 8.0.44 | Linux | x86 | Different results for INNER JOIN and STRAIGHT_JOIN with GREATEST() IN predicate |
| 119686 | 2026-01-15 8:37 | 2026-01-15 13:11 | MySQL Server: Optimizer | Verified (222 days) | S2 | 8.0.44 | Linux | x86 | Incorrect result when joined table has PRIMARY KEY and WHERE predicate involves CASE |
| 119687 | 2026-01-15 10:23 | 2026-01-15 13:18 | MySQL Server: Optimizer | Verified (222 days) | S1 | 8.0.44 | Any | Any | Inconsistent behaviour between normal and prepared INSERT |
| 119692 | 2026-01-16 5:23 | 2026-01-16 8:09 | MySQL Server: Optimizer | Verified (221 days) | S1 | 8.0.44 | Any | Any | The normal query generated a non-optimal query plan. |
| 119706 | 2026-01-16 10:46 | 2026-06-08 11:37 | MySQL Server: Optimizer | Verified (78 days) | S2 | 8.0.44, 9.5.0 | Any | Any | Incorrect Results from ALL/ANY Subquery MIN/MAX Optimization with Type Mismatch |
| 119708 | 2026-01-16 14:58 | 2026-02-08 12:32 | MySQL Server: Optimizer | Verified (198 days) | S2 | 8.0.44 | Linux | Any | INNER JOIN and STRAIGHT_JOIN produce different results with FLOAT UNIQUE column on MEMORY table |
| 119716 | 2026-01-19 1:36 | 2026-01-19 9:16 | MySQL Server: Optimizer | Verified (218 days) | S1 | 8.0.44 | Any | Any | Suboptimal query plan generated by normal query compare to prepared statement |
| 119741 | 2026-01-22 7:00 | 2026-01-22 8:35 | MySQL Server: Optimizer | Verified (215 days) | S1 | 8.0.44 | Any | Any | internal_tmp_mem_storage_engine = MEMORY setting makes the DISTINCTROW returns incorrect result on 0 and -0 |
| 119770 | 2026-01-24 19:09 | 2026-01-27 10:03 | MySQL Server: Optimizer | Duplicate (210 days) | S2 | 8.4 | Any | Any | MySQL 8.4 optimizer uses full table scan for IN (...) on prefix index, but works in 8.0 |
| 119790 | 2026-01-27 10:14 | 2026-01-27 12:07 | MySQL Server: Optimizer | Verified (210 days) | S1 | 8.0.44 | Any | Any | Unexpected result of expression IN NULL |
| 119802 | 2026-01-28 13:49 | 2026-01-28 15:52 | MySQL Server: Optimizer | Verified (209 days) | S2 | 8.0.42+ | Any | Any | Assertion 'is_nullable()' failed in Item_typecast_signed::val_int() |
| 119822 | 2026-01-31 17:35 | 2026-01-31 22:04 | MySQL Server: Optimizer | Verified (206 days) | S2 | 8.0.45 | Any | Any | MySQL and TiDB return different results |
| 119825 | 2026-02-01 12:02 | 2026-02-02 3:51 | MySQL Server: Optimizer | Verified (204 days) | S2 | 8.0.45, 8.4.8, 9.6 | Any | Any | Inconsistent results between INNER JOIN and STRAIGHT_JOIN when comparing DOUBLE constant with INT UNIQUE column |
| 119909 | 2026-02-12 21:31 | 2026-07-08 12:22 | MySQL Server: Optimizer | Verified (48 days) | S2 | 9.5.0 | Any | Any | Wrong result due to unsafe Item_max optimization triggering on homogeneous subqueries but not heterogeneous ones |
| 119912 | 2026-02-15 4:33 | 2026-02-15 12:09 | MySQL Server: Optimizer | Verified (191 days) | S2 | 8.0.45 | Linux | Any | JOIN query returns different results depending on index visibility |
| 119918 | 2026-02-17 8:12 | 2026-02-17 8:31 | MySQL Server: Optimizer | Verified (189 days) | S2 | 9.6.0 | Any | Any | Tree based explain format doesn't work well with MySQL Client or MySQL Shell |
| 119927 | 2026-02-20 10:28 | 2026-02-25 8:56 | MySQL Server: Optimizer | Verified (181 days) | S2 | 8.0.45 | Linux | Any | Inconsistent results between direct query and derived table with BIGINT column and FLOAT predicate (IN clause) |
| 119944 | 2026-02-25 22:14 | 2026-02-26 13:13 | MySQL Server: Optimizer | Verified (180 days) | S1 | 8.0, 8.4, 9.X | Any | Any | Feature Request: Extend TIMESTAMP range beyond 2038-01-19 by switching to 64-bit signed storage (Year 2038 Problem) |
| 119955 | 2026-02-27 5:03 | 2026-06-04 8:37 | MySQL Server: Optimizer | Verified (82 days) | S2 | 8.0.43 (MySQL Community Server - GPL) | Any (Docker container) | Any (x86_64) | Semantically equivalent scalar expressions yield different result sets in WHERE clause involving RPAD() |
| 119958 | 2026-02-28 13:09 | 2026-03-02 13:02 | MySQL Server: Optimizer | Verified (176 days) | S1 | 8.0.45 | Any | Any | EXISTS subquery result behaves inconsistently based on source table |
| 119972 | 2026-03-02 19:47 | 2026-03-03 9:47 | MySQL Server: Optimizer | Verified (175 days) | S1 | 8.0.45 | Any | Any | Incorrect Result from IN Subquery with UNIQUE Index |
| 119973 | 2026-03-02 21:01 | 2026-03-03 8:45 | MySQL Server: Optimizer | Verified (175 days) | S1 | 8.0.45 | Any | Any | Inconsistent results depending on whether the column has a PRIMARY KEY index |
| 119991 | 2026-03-06 5:56 | 2026-03-06 11:27 | MySQL Server: Optimizer | Verified (172 days) | S2 | 8.0.45 | Linux | x86 | Incorrect result with LEFT/RIGHT JOIN when comparing boolean expression with = 0 in presence of functional index |
| 119992 | 2026-03-06 6:23 | 2026-03-09 8:07 | MySQL Server: Optimizer | Duplicate (169 days) | S2 | 8.0.45 | Linux | x86 | Incorrect result for LEFT/RIGHT JOIN when using IS TRUE / IS FALSE expressions on the right table with NULL padding. |
| 119993 | 2026-03-06 7:57 | 2026-03-09 8:14 | MySQL Server: Optimizer | Duplicate (169 days) | S2 | Linux | x86 | Incorrect result with LEFT/RIGHT JOIN when using functional index and boolean expression comparison | |
| 119994 | 2026-03-06 8:20 | 2026-03-09 8:17 | MySQL Server: Optimizer | Duplicate (169 days) | S2 | Linux | x86 | Incorrect result with LEFT/RIGHT JOIN using functional index and boolean expression comparison | |
| 119995 | 2026-03-06 9:51 | 2026-06-16 11:31 | MySQL Server: Optimizer | Closed (120 days) | S2 | 8.0.45 | Any | Any | Function find_in_set return wrong result |
| 120004 | 2026-03-07 19:38 | 2026-03-09 9:48 | MySQL Server: Optimizer | Verified (169 days) | S2 | 8.0.31 | Any | Any | IndexSkipScanIterator Assertion Failure |
| 120005 | 2026-03-08 0:14 | 2026-03-10 8:04 | MySQL Server: Optimizer | Verified (168 days) | S2 | 8.4.7 | Any | Any | Wrong results with subquery with semijoin=on and antijoin optimization |
| 120010 | 2026-03-09 9:56 | 2026-04-03 10:55 | MySQL Server: Optimizer | Duplicate (145 days) | S1 | 8.0.45 | Any | Any | Incorrect result set when evaluating IS NULL on a derived table containing logical AND expressions |
| 120011 | 2026-03-09 10:29 | 2026-03-09 11:16 | MySQL Server: Optimizer | Verified (169 days) | S1 | 8.0.44 | Any | Any | The normal query generated a non-optimal query plan with index. |
| 120013 | 2026-03-09 11:27 | 2026-03-09 13:50 | MySQL Server: Optimizer | Not a Bug (169 days) | S1 | 9.6.0 | Any | Any | Inconsistent results between equivalent queries involving logical predicates and set operations |
| 120015 | 2026-03-09 13:48 | 2026-04-02 6:16 | MySQL Server: Optimizer | Duplicate (145 days) | S1 | 8.0.45 | Any | Any | Incorrect retention of NULL rows due to CASE evaluation error in WHERE clause. |
| 120019 | 2026-03-10 12:29 | 2026-03-10 14:40 | MySQL Server: Optimizer | Verified (168 days) | S2 | 8.0.41 | Any | Any | query result change after removing partitioning |
| 120045 | 2026-03-13 2:54 | 2026-03-30 13:41 | MySQL Server: Optimizer | Duplicate (148 days) | S1 | 9.5.0 | Any | Any | INTERSECT Returns Inconsistent Results Based on optimizer_switch and WHERE Clause |
| 120051 | 2026-03-13 9:31 | 2026-03-13 21:16 | MySQL Server: Optimizer | Verified (165 days) | S1 | 8.0.45 | Linux (ubuntu 20.04) | Any | Wrong result for derived-table rewrite of GROUP BY ... HAVING query |
| 120053 | 2026-03-13 10:58 | 2026-03-13 15:09 | MySQL Server: Optimizer | Duplicate (165 days) | S1 | 9.5.0 | Any | Any | EXCEPT Returns Different Results Based on Composite Primary Key, WHERE Conditions, BNL Optimization |
| 120075 | 2026-03-16 14:26 | 2026-03-25 12:47 | MySQL Server: Optimizer | Verified (160 days) | S1 | 8.0.45 | Linux (ubuntu 20.04) | x86 | Silent Data Truncation of DOUBLE (DBL_MAX) in Subqueries/Temporary Tables |
| 120083 | 2026-03-17 8:59 | 2026-03-17 11:38 | MySQL Server: Optimizer | Verified (161 days) | S2 | 8.0.45 | Linux | x86 | incorrect result when comparing floating constant in OUTER JOIN condition |
| 120087 | 2026-03-17 13:12 | 2026-03-18 4:58 | MySQL Server: Optimizer | Verified (160 days) | S2 | 8.0.45 | Linux | x86 | Incorrect result with RIGHT JOIN and IS NULL predicate on partitioned indexed table |
| 120094 | 2026-03-18 8:29 | 2026-03-18 9:35 | MySQL Server: Optimizer | Verified (160 days) | S1 | 8.0.45 | Any | Any | Query returns incorrect results due to incorrect handling of predicate logic |
| 120097 | 2026-03-18 9:34 | 2026-03-18 9:48 | MySQL Server: Optimizer | Verified (160 days) | S1 | 8.0.45 | Any | Any | Incorrect result set when use INTERSECT ALL |
| 120098 | 2026-03-18 9:58 | 2026-03-18 10:59 | MySQL Server: Optimizer | Verified (160 days) | S1 | 8.0.45 | Any | Any | Incorrect result when using EXISTS with INTERSECT ALL and correlated subquery |
| 120099 | 2026-03-18 12:08 | 2026-03-19 8:04 | MySQL Server: Optimizer | Verified (159 days) | S1 | 8.0.45 | Any | Any | Query returns wrong result when condition involves CAST(division AS CHAR) |
| 120106 | 2026-03-19 7:49 | 2026-03-19 8:33 | MySQL Server: Optimizer | Verified (159 days) | S1 | 8.0.45 | Any | Any | Optimizer incorrectly handles constant derived table in RIGHT JOIN |
| 120121 | 2026-03-20 4:51 | 2026-03-20 9:41 | MySQL Server: Optimizer | Duplicate (158 days) | S1 | 9.5.0 | Any | Any | Phantom Drift: Wrong Result in INTERSECT with NULL caused by Prefix Primary Key and Cartesian Join |
| 120145 | 2026-03-25 6:05 | 2026-03-25 19:22 | MySQL Server: Optimizer | Verified (153 days) | S2 | 8.0.45 | Linux (ubuntu 20.04) | x86 | Incorrect empty result after relocating a HAVING predicate into a derived-table boolean column with WHERE ref1 |
| 120146 | 2026-03-25 6:22 | 2026-06-08 11:29 | MySQL Server: Optimizer | Verified (78 days) | S2 | 9.6.0 | Linux (ubuntu 20.04) | x86 | Wrong result due to incorrect const-table pruning for NOT IN on FLOAT UNIQUE column in MEMORY engine |
| 120152 | 2026-03-25 8:50 | 2026-06-04 8:38 | MySQL Server: Optimizer | Verified (82 days) | S2 | 8.0.43 (MySQL Community Server - GPL) | Any (Docker container) | Any (x86_64) | Unexpected behavior of LEFT JOIN + empty subquery with NULL comparison in WHERE clause |
| 120158 | 2026-03-26 6:04 | 2026-03-29 19:37 | MySQL Server: Optimizer | Verified (149 days) | S2 | 8.0.45 | Ubuntu (Ubuntu 20.04.4 LTS) | x86 (Intel(R) Xeon(R) Platinum 8358P @ 2.60GHz (64 Cores, 96MB L3 Cache)) | Incorrect result (NULL included) in index lookup/MAX() on FLOAT ZEROFILL column when filtering by 0.0 |
| 120159 | 2026-03-26 11:41 | 2026-06-04 8:38 | MySQL Server: Optimizer | Verified (82 days) | S2 | 8.0.43 (MySQL Community Server - GPL) | Any (Docker container) | Any (x86_64) | RIGHT JOIN + Complex Subqueries Returns Extra Rows |
| 120179 | 2026-03-30 10:54 | 2026-06-04 8:39 | MySQL Server: Optimizer | Verified (82 days) | S2 | 8.0.43 (MySQL Community Server - GPL) | Any (Docker container) | Any (x86_64) | NoREC Test: COUNT(*) vs SUM(CASE...) produces inconsistent results with RIGHT JOIN + LEFT JOIN |
| 120180 | 2026-03-30 13:32 | 2026-06-30 5:29 | MySQL Server: Optimizer | Verified (56 days) | S2 | 8.0.43 (MySQL Community Server - GPL) | Any (Docker container) | Any (x86_64) | NoREC Bug: COUNT(*) and SUM(CASE WHEN ...) return inconsistent results with string-length expression and NULL-sensitive |
| 120187 | 2026-03-31 11:46 | 2026-06-30 5:37 | MySQL Server: Optimizer | Verified (56 days) | S2 | 8.0.43 (MySQL Community Server - GPL) | Any (Docker container) | Any (x86_64) | Bug: COUNT(*) vs SUM(CASE WHEN ...) returns inconsistent results with NULL-sensitive joins |
| 120189 | 2026-03-31 12:43 | 2026-06-30 6:11 | MySQL Server: Optimizer | Verified (56 days) | S2 | 8.0.43 (MySQL Community Server - GPL) | Any (Docker container) | Any (x86_64) | TLP Bug: COUNT(*) on orders returns 5, but equivalent TLP-style with complex NULLIF and CASE expressions return 10 |
| 120190 | 2026-03-31 13:04 | 2026-06-30 5:22 | MySQL Server: Optimizer | Verified (56 days) | S2 | 8.0.43 (MySQL Community Server - GPL) | Any (Docker container) | Any (x86_64) | TLP Bug: COUNT(*) returns 20, while TLP-partitioned queries return 0 under RIGHT JOIN with LATERAL subqueries |
| 120191 | 2026-03-31 13:32 | 2026-07-08 12:40 | MySQL Server: Optimizer | Verified (48 days) | S2 | 8.0.43 (MySQL Community Server - GPL) | Any (Docker container) | Any (x86_64) | TLP bug: Incorrect result under Ternary Logic Partitioning (TLP) with complex RIGHT JOIN chains |
| 120203 | 2026-04-02 2:35 | 2026-04-04 19:49 | MySQL Server: Optimizer | Verified (143 days) | S2 | 8.0.45 | Any | Any | MySQL returns an incorrect result for an indexed comparison between an `INT` column and a non-integer function value. |
| 120224 | 2026-04-07 12:25 | 2026-06-04 8:41 | MySQL Server: Optimizer | Verified (82 days) | S2 | 8.0.43 (MySQL Community Server - GPL) | Any (Docker container) | Any (x86_64) | Inconsistent row counts for DELETE vs SELECT with EXISTS and lateral subquery on the same table |
| 120225 | 2026-04-07 13:40 | 2026-06-04 8:41 | MySQL Server: Optimizer | Verified (82 days) | S2 | 8.0.43 (MySQL Community Server - GPL) | Any (Docker container) | Any (x86_64) | Inconsistent behavior between SELECT and DELETE/UPDATE with EXISTS and LEFT JOIN subquery |
| 120254 | 2026-04-13 10:04 | 2026-04-14 8:48 | MySQL Server: Optimizer | Not a Bug (133 days) | S1 | 9.6.0 | Any | Any | Equivalent queries show different behavior due to short-circuit optimization failure |
| 120255 | 2026-04-13 11:24 | 2026-04-13 13:04 | MySQL Server: Optimizer | Verified (134 days) | S2 | 8.4.8 | Any | Any | CREATE VIEW materialization changes grouped results when replacing a grouped CTE or derived input |
| 120256 | 2026-04-13 11:44 | 2026-04-13 12:48 | MySQL Server: Optimizer | Verified (134 days) | S2 | 8.4.8 | Any | Any | CREATE VIEW materialization turns zero datetime values into runtime timestamps in UNION ALL output |
| 120258 | 2026-04-14 2:07 | 2026-04-14 4:45 | MySQL Server: Optimizer | Verified (133 days) | S2 | 8.4.8 | Any | Any | CREATE VIEW materialization changes NULL aggregate outputs into numeric values after GROUP BY |
| 120259 | 2026-04-14 2:43 | 2026-04-14 4:49 | MySQL Server: Optimizer | Verified (133 days) | S2 | 8.4.8 | Any | Any | CREATE VIEW materialization changes byte-valued UNION results |
| 120260 | 2026-04-14 2:48 | 2026-06-01 12:28 | MySQL Server: Optimizer | Duplicate (85 days) | S2 | 8.4.8 | Any | Any | CREATE VIEW materialization changes byte-valued outputs after aggregate or window processing |
| 120261 | 2026-04-14 2:52 | 2026-06-01 9:09 | MySQL Server: Optimizer | Duplicate (85 days) | S2 | 8.4.8 | Any | Any | CREATE VIEW materialization changes a key scalar output |
| 120262 | 2026-04-14 2:54 | 2026-04-16 20:55 | MySQL Server: Optimizer | Not a Bug (131 days) | S2 | 8.4.8 | Any | Any | CREATE VIEW materialization changes INTERSECT result cardinality for an aggregate branch |
| 120265 | 2026-04-14 8:24 | 2026-04-14 9:47 | MySQL Server: Optimizer | Verified (133 days) | S1 | 9.6.0 | Any | Any | Query returns with UNION, INTERSECT ALL and Derived SELECT DISTINCT |
| 120270 | 2026-04-15 9:49 | 2026-04-16 21:20 | MySQL Server: Optimizer | Verified (131 days) | S1 | 8.0.45 | Any | Any | Incorrect result for INTERSECT ALL with semantically equivalent EXCEPT operands when right EXCEPT left operand is wrap |
| 120271 | 2026-04-15 10:54 | 2026-06-04 8:42 | MySQL Server: Optimizer | Verified (82 days) | S2 | 8.0.43 (MySQL Community Server - GPL) | Any (Docker container) | Any (x86_64) | Logic error: EXISTS subquery treated as constant TRUE yields different result than literal TRUE |
| 120275 | 2026-04-16 7:10 | 2026-04-20 6:51 | MySQL Server: Optimizer | Verified (127 days) | S2 | 8.0.45 | Ubuntu (Ubuntu 20.04.4 LTS) | x86 (Intel(R) Xeon(R) Platinum 8358P @ 2.60GHz (64 Cores, 96MB L3 Cache)) | DATE Index Lookup Loses Existing JOIN Matches Even with Explicit CAST(MEDIUMTEXT AS DATE), Causing S1/S2 Divergence |
| 120279 | 2026-04-17 7:23 | 2026-06-04 8:42 | MySQL Server: Optimizer | Verified (82 days) | S2 | 8.0.43 (MySQL Community Server - GPL) | Any | Any | Severe performance degradation with window function + joins (works fast in PostgreSQL/DuckDB/TiDB) |
| 120283 | 2026-04-17 13:00 | 2026-04-20 7:22 | MySQL Server: Optimizer | Not a Bug (127 days) | S2 | 8.0.45 | Ubuntu (Ubuntu 20.04.4 LTS) | x86 (Intel(R) Xeon(R) Platinum 8358P @ 2.60GHz (64 Cores, 96MB L3 Cache)) | DATE Column Printed as NULL Still Satisfies `IS NOT NULL`,Allowing a Contradictory Predicate to Return Rows |
| 120284 | 2026-04-18 15:46 | 2026-04-20 7:33 | MySQL Server: Optimizer | Verified (127 days) | S2 | 8.0.45 | Ubuntu (Ubuntu 20.04.4 LTS) | x86 (Intel(R) Xeon(R) Platinum 8358P @ 2.60GHz (64 Cores, 96MB L3 Cache)) | Materialized `IN (subquery)` Loses VARCHAR-to-YEAR Coercion,Causing Plan-Dependent Result Divergence |
| 120285 | 2026-04-18 15:49 | 2026-06-30 6:34 | MySQL Server: Optimizer | Verified (56 days) | S2 | 8.0.45 | Ubuntu (Ubuntu 20.04.4 LTS) | x86 (Intel(R) Xeon(R) Platinum 8358P @ 2.60GHz (64 Cores, 96MB L3 Cache)) | Materialized Semijoin + Outer ORDER BY Loses Rows for Correlated EXISTS,Causing Plan-Dependent Result Divergence |
| 120286 | 2026-04-19 5:14 | 2026-04-20 7:53 | MySQL Server: Optimizer | Verified (127 days) | S2 | 8.0.45 | Any | Any | `SUM(DISTINCT pk)` returns `NULL` with a window function when a secondary index is used for group-by scanning |
| 120288 | 2026-04-19 14:29 | 2026-04-20 8:04 | MySQL Server: Optimizer | Verified (127 days) | S2 | 8.0.45 | Linux (Observed on Linux via the `mysql:9.6` ) | Any | Window function logic mismatch in indexed `NOT IN` |
| 120289 | 2026-04-19 14:35 | 2026-04-20 8:13 | MySQL Server: Optimizer | Verified (127 days) | S2 | 9.6 | Linux (Observed on Linux via the `mysql:9.6` ) | Any | Mismatch in indexed `IN` under windows function query |
| 120291 | 2026-04-19 16:45 | 2026-04-27 13:16 | MySQL Server: Optimizer | Verified (120 days) | S2 | 9.6.0 | Any | Any | Inconsistent results between VIEW and CTE involving EXISTS subquery and LEFT JOIN |
| 120292 | 2026-04-19 17:01 | 2026-04-27 14:09 | MySQL Server: Optimizer | Verified (120 days) | S2 | 9.6.0; 8.0.45 | Any | Any | Inconsistent results between VIEW and CTE involving IN subquery and RIGHT JOIN |
| 120293 | 2026-04-19 17:10 | 2026-04-27 14:10 | MySQL Server: Optimizer | Verified (120 days) | S1 | 9.6.0; 8.0.45 | Any | Any | Query result inconsistency between VIEW and CTE involving a UNION of scalar aggregation and grouped aggregation |
| 120296 | 2026-04-20 7:50 | 2026-04-20 9:24 | MySQL Server: Optimizer | Verified (127 days) | S2 | 8.0.45 | Ubuntu (Ubuntu 20.04.4 LTS) | x86 (Intel(R) Xeon(R) Platinum 8358P @ 2.60GHz (64 Cores, 96MB L3 Cache)) | Materialized Correlated EXISTS Loses Implicit VARCHAR-to-YEAR Coercion,Causing Plan-Dependent Result Divergence |
| 120297 | 2026-04-20 8:44 | 2026-04-20 10:04 | MySQL Server: Optimizer | Verified (127 days) | S2 | 8.0.32 | Any | Any | query_term.cc:320 assert(false) crash — UNION query triggers unhandled AccessPath |
| 120299 | 2026-04-20 9:00 | 2026-04-20 10:41 | MySQL Server: Optimizer | Verified (127 days) | S2 | 9.6 | Linux (Observed on Linux via the `mysql:9.6` ) | Any | mismatch in `DELETE ... EXISTS` under window function query |
| 120300 | 2026-04-20 9:02 | 2026-04-20 11:03 | MySQL Server: Optimizer | Verified (127 days) | S2 | 8.0.45 | Any (Observed on Linux via the `mysql:9.6` ) | Any | Window function logic mismatch across engines |
| 120302 | 2026-04-20 9:51 | 2026-04-20 11:26 | MySQL Server: Optimizer | Verified (127 days) | S2 | 9.6.0 | Any | Any | Inconsistent results between VIEW and CTE involving YEAR(DATETIME), UNION, and JOIN. |
| 120307 | 2026-04-21 14:02 | 2026-04-22 4:23 | MySQL Server: Optimizer | Verified (125 days) | S2 | 9.6 | Linux (Observed on Linux via the `mysql:9.6` ) | Any | Wrong result for `<= ANY (subquery)` in a window-function query |
| 120308 | 2026-04-21 14:03 | 2026-04-22 4:27 | MySQL Server: Optimizer | Verified (125 days) | S2 | 9.6 | Linux (Observed on Linux via the `mysql:9.6` ) | Any | Wrong result for string-vs-`BIT` comparison in a window-function query |
| 120310 | 2026-04-21 16:45 | 2026-04-22 4:34 | MySQL Server: Optimizer | Verified (125 days) | S2 | 9.6 | Linux (Observed on Linux via the `mysql:9.6` ) | Any | Wrong result for MAX(BIT(8)) UNION ALL BLOB after view extraction in a window-function workload |
| 120311 | 2026-04-21 16:52 | 2026-04-22 4:38 | MySQL Server: Optimizer | Verified (125 days) | S2 | 9.6 | Linux (Observed on Linux via the `mysql:9.6` ) | Any | Wrong result for grouped SUM(DISTINCT ...) with DENSE_RANK() after view extraction |
| 120312 | 2026-04-21 16:58 | 2026-04-22 4:40 | MySQL Server: Optimizer | Verified (125 days) | S2 | 9.6 | Linux (Observed on Linux via the `mysql:9.6` ) | Any | Wrong result for MIN(TIME) UNION ALL DATE after view extraction |
| 120313 | 2026-04-21 17:11 | 2026-04-22 4:43 | MySQL Server: Optimizer | Verified (125 days) | S1 | 9.6 | Linux (Observed on Linux via the `mysql:9.6` ) | Any | Wrong result when only GROUP BY key order is changed in a join query with nested window-function input |
| 120319 | 2026-04-22 7:11 | 2026-04-22 9:43 | MySQL Server: Optimizer | Duplicate (125 days) | S2 | MySQL 8.4.6 LTS | Any | Any | IN() clause containing over-length string values for VARCHAR(N) column causes full table scan in MySQL 8.4.x, while sing |
| 120340 | 2026-04-24 9:13 | 2026-07-09 5:42 | MySQL Server: Optimizer | Not a Bug (47 days) | S2 | 8.0.43 (MySQL Community Server - GPL) | Any | Any | Inconsistent evaluation of NULLIF(ROUND(VAR_SAMP(...)), const) <= value between MySQL and PostgreSQL/DuckDB causes diffe |
| 120344 | 2026-04-26 6:43 | 2026-04-27 4:04 | MySQL Server: Optimizer | Verified (120 days) | S2 | 9.6.0 | Any | Any | VIEW and equivalent CTE return different results with UNION, YEAR(0), and repeated reference in subquery |
| 120350 | 2026-04-27 8:35 | 2026-04-28 4:31 | MySQL Server: Optimizer | Verified (119 days) | S2 | 9.6.0 | Linux | Any | Prefix index on TEXT column causes range scan to miss qualifying rows in MySQL |
| 120352 | 2026-04-27 9:34 | 2026-04-28 4:26 | MySQL Server: Optimizer | Verified (119 days) | S2 | 9.6.0 | Linux | Any | Prefix index with length 1 causes incorrect "Zero rows" optimization with float overflow literal in range condition |
| 120363 | 2026-04-28 6:58 | 2026-06-04 8:42 | MySQL Server: Optimizer | Verified (82 days) | S2 | 8.0.43 | Any (Docker container) | Any (x86_64) | LEFT JOIN ON FALSE causes incorrect NULL comparison result in MySQL |
| 120377 | 2026-04-29 8:45 | 2026-06-04 8:43 | MySQL Server: Optimizer | Verified (82 days) | S2 | 8.0.43 (MySQL Community Server - GPL) | Any (Docker container) | Any (x86_64) | Incorrect row count in MySQL when using LATERAL derived table with DISTINCT and CASE |
| 120403 | 2026-05-05 13:47 | 2026-08-12 18:33 | MySQL Server: Optimizer | Closed (13 days) | S2 | 8.0.46, 8.4.9, 9.7.0 | Any | Any | Regression in MySQL 8.0.46, 8.4.9 & 9.7.0: WHERE equality condition fails to match existing row |
| 120422 | 2026-05-08 8:56 | 2026-07-02 1:00 | MySQL Server: Optimizer | No Feedback (55 days) | S2 | 9.7.0 (also reproducible in 8.0.x) | Any | Any | ORDER BY ignored when internal_tmp_mem_storage_engine = TempTable with GROUP BY on CTE |
| 120429 | 2026-05-10 7:04 | 2026-08-13 17:35 | MySQL Server: Optimizer | Closed (12 days) | S2 | 9.7.0 | Windows (Windows Server 2022) | Any | IFNULL function does not handle NULL |
| 120456 | 2026-05-12 15:02 | 2026-05-17 23:00 | MySQL Server: Optimizer | Verified (100 days) | S2 | 8.0.46 | Linux | Any | Semijoin Nested Loop index lookup uses raw VARCHAR keys against a DOUBLE B-tree, causing mismatches when the string over |
| 120457 | 2026-05-12 15:03 | 2026-05-28 1:13 | MySQL Server: Optimizer | Patch pending (100 days) | S2 | 9.7 | CentOS | x86 | Hypergraph optimizer returns wrong results for LEFT JOIN LATERAL with SEMI JOIN when derived_merge |
| 120472 | 2026-05-14 4:07 | 2026-06-04 8:43 | MySQL Server: Optimizer | Verified (82 days) | S2 | 8.0.43 | Any | Any | Wrong Result After Removing Semantically Redundant RIGHT JOIN ... ON FALSE |
| 120475 | 2026-05-14 9:09 | 2026-05-18 10:20 | MySQL Server: Optimizer | Verified (99 days) | S2 | 8.0.46 | Linux | Any | Index Merge Intersection incorrectly drops matching rows in SELECT with OR predicate, returning wrong result count |
| 120476 | 2026-05-14 11:53 | 2026-05-18 8:25 | MySQL Server: Optimizer | Verified (99 days) | S2 | 9.6.0 | Linux | Any | Index Merge Union returns duplicate row for overlapping OR conditions, producing wrong result count |
| 120491 | 2026-05-18 5:53 | 2026-05-18 12:22 | MySQL Server: Optimizer | Verified (99 days) | S2 | 8.0.46 | CentOS | Any | Semijoin returns wrong results for VARCHAR-to-DECIMAL comparison with non-canonical numeric strings |
| 120524 | 2026-05-22 9:40 | 2026-05-26 6:27 | MySQL Server: Optimizer | Verified (91 days) | S2 | 8.0.45 | Ubuntu (Ubuntu 20.04.4 LTS) | x86 (Intel(R) Xeon(R) Platinum 8358P @ 2.60GHz (64 Cores, 96MB L3 Cache)) | Materialized Correlated EXISTS Returns Positive COUNT(*) But No Rows for Implicit VARCHAR-to-YEAR Comparison |
| 120525 | 2026-05-22 9:41 | 2026-08-04 6:38 | MySQL Server: Optimizer | Verified (91 days) | S2 | 8.0.45 | Ubuntu (Ubuntu 20.04.4 LTS) | x86 (Intel(R) Xeon(R) Platinum 8358P @ 2.60GHz (64 Cores, 96MB L3 Cache)) | Append-Only Growth Breaks Subset Monotonicity for Implicit VARCHAR-to-DECIMAL IN-Subquery Comparison |
| 120527 | 2026-05-22 11:47 | 2026-06-01 9:39 | MySQL Server: Optimizer | Verified (85 days) | S2 | 9.6.0 | Linux | Any | FULLTEXT index scan with ORDER BY and numeric WHERE filter returns empty result set |
| 120531 | 2026-05-23 12:33 | 2026-05-26 7:24 | MySQL Server: Optimizer | Verified (91 days) | S2 | 8.0.45 | Ubuntu | x86 | A NULL comparison inside an IN subquery becomes spuriously true in the original path |
| 120532 | 2026-05-23 12:34 | 2026-05-27 13:43 | MySQL Server: Optimizer | Duplicate (90 days) | S2 | 9.7.0 | Ubuntu | x86 | An unused derived subquery triggers a DISTINCT/IFNULL wrong-result in the original path |
| 120533 | 2026-05-23 12:35 | 2026-05-26 8:30 | MySQL Server: Optimizer | Verified (91 days) | S2 | 8.0.45 | Ubuntu | x86 | A LEFT JOIN over DECIMAL ZEROFILL UNIQUE wrongly loses an obvious match |
| 120538 | 2026-05-24 13:46 | 2026-05-27 13:53 | MySQL Server: Optimizer | Duplicate (90 days) | S2 | 9.7.0 | Ubuntu | x86 | A RIGHT JOIN predicate treats IFNULL(NULL, non-NULL DECIMAL ZEROFILL) as non-matching and drops obvious rows |
| 120540 | 2026-05-25 1:44 | 2026-08-13 17:21 | MySQL Server: Optimizer | Closed (12 days) | S2 | 9.7.0 | Ubuntu | x86 | A negated `IS TRUE` guard can still match a DECIMAL row for which the guarded predicate is true |
| 120543 | 2026-05-25 9:57 | 2026-05-27 5:37 | MySQL Server: Optimizer | Verified (90 days) | S2 | 8.4.8 | Any | Any | MySQL `MERGE` vs `TEMPTABLE` view evaluation changes `MAX(SET)` result |
| 120555 | 2026-05-27 8:22 | 2026-05-27 11:39 | MySQL Server: Optimizer | Verified (90 days) | S2 | 8.0.45 | Ubuntu | Any | Equivalent VIEW and CTE queries return different row counts with EXISTS, BINARY ENUM comparison, and LEFT JOIN |
| 120574 | 2026-05-29 14:05 | 2026-08-04 13:50 | MySQL Server: Optimizer | Duplicate (21 days) | S2 | 8.0.41 | Any | Any | Range optimizer exceeds memory limit and chooses bad range plan for large IN lists |
| 120575 | 2026-05-30 6:57 | 2026-08-04 14:17 | MySQL Server: Optimizer | Duplicate (21 days) | S2 | 8.0.41+ | Any | Any | Range optimizer chooses bad range plan for large IN lists and execution is very slow and memory usage spikes. |
| 120581 | 2026-05-31 9:02 | 2026-06-01 6:17 | MySQL Server: Optimizer | Verified (85 days) | S2 | 8.0.44 | MacOS | Any | unique index causes incorrect result for IN comparison with implicit type conversion |
| 120583 | 2026-06-01 2:10 | 2026-06-01 5:33 | MySQL Server: Optimizer | Verified (85 days) | S2 | 9.7.0 | Any | Any | JOIN_ORDER hint causes "Optimizer failed to find a plan" with a leading derived table and same table names in nested sql |
| 120584 | 2026-06-01 5:18 | 2026-06-01 7:16 | MySQL Server: Optimizer | Verified (85 days) | S2 | 8.0.45 | Any | Any | Optimizer picks BIGINT gen col index for DECIMAL expression, BIGINT truncation falsely matches fractional values |
| 120585 | 2026-06-01 9:13 | 2026-06-01 9:42 | MySQL Server: Optimizer | Duplicate (85 days) | S2 | 9.6.0 | Any | Any | InnoDB FULLTEXT index scan silently drops rows when ORDER BY combines with type-coerced equality |
| 120586 | 2026-06-01 9:25 | 2026-06-01 9:48 | MySQL Server: Optimizer | Duplicate (85 days) | S2 | 8.0.41 | Any | Any | Incorrect duplicate rows caused by lost IN predicate during semijoin materialization with view column using COLLATE |
| 120639 | 2026-06-09 10:08 | 2026-06-09 10:52 | MySQL Server: Optimizer | Verified (77 days) | S1 | 8.0.46 | Any (Storage Engine: InnoDB) | Any | COUNT(*) on an indexed integer column produces incorrect results when the WHERE clause uses NOT (IFNULL(non-integer cons |
| 120641 | 2026-06-09 10:23 | 2026-07-20 11:12 | MySQL Server: Optimizer | Verified (77 days) | S1 | 8.0 | Any (Storage Engine: InnoDB) | Any | Derived condition pushdown causes wrong row filtering due to incorrect constant folding with any_value() aggregation |
| 120642 | 2026-06-09 10:44 | 2026-06-10 7:44 | MySQL Server: Optimizer | Not a Bug (76 days) | S1 | MySQL 9.6 | Any (Storage Engine: InnoDB) | Any | Derived table merging loses FLOAT display formatting context, causing inconsistent aggregated output |
| 120665 | 2026-06-12 10:19 | 2026-08-03 12:11 | MySQL Server: Optimizer | Duplicate (22 days) | S2 | 8.4.8 | Any | Any | Non optimal query plan chosen for DML |
| 120699 | 2026-06-16 5:52 | 2026-06-16 13:31 | MySQL Server: Optimizer | Duplicate (70 days) | S2 | 9.7.0, 9.6.0 | Any | Any | WHERE clause incorrectly returns rows when using COALESCE/IFNULL/LEAST/GREATEST on DECIMAL column |
| 120716 | 2026-06-17 12:31 | 2026-06-17 12:53 | MySQL Server: Optimizer | Verified (69 days) | S1 | 8.0.45 | Any (Storage Engine: MEMORY) | Any | MEMORY Engine Empty Outer Join Derived Table Causes Incorrect Aggregate Result (Should Be NULL) |
| 120721 | 2026-06-18 1:41 | 2026-06-18 11:41 | MySQL Server: Optimizer | Duplicate (68 days) | S1 | MySQL 9.6 | Any (Storage Engine: InnoDB) | Any | Auto-Key Data Type Truncation During Materialized Derived Table Lookup Causes Incorrect IN Match (Should Return Empty) |
| 120733 | 2026-06-20 13:38 | 2026-06-22 9:29 | MySQL Server: Optimizer | Verified (64 days) | S1 | MySQL 9.6 | Any | Any | DISTINCTROW with ROW_NUMBER() Derived Table and GROUP BY Causes Duplicate Removal Key to Miss a Non‑Aggregate Column, Me |
| 120734 | 2026-06-20 14:02 | 2026-06-22 9:59 | MySQL Server: Optimizer | Verified (64 days) | S1 | 8.0.45 | Any | Any | Constant Table Optimization Ignores WHERE Condition for MAX(DISTINCT), Returning Incorrect Non-NULL Value |
| 120735 | 2026-06-21 14:10 | 2026-06-22 10:19 | MySQL Server: Optimizer | Not a Bug (64 days) | S1 | MySQL 9.6 | Any | Any | Index Range Scan Incorrectly Shrinks Range for IN Predicate with EXISTS and CAST(NULL AS SIGNED), Missing Rows |
| 120737 | 2026-06-22 8:28 | 2026-06-22 10:31 | MySQL Server: Optimizer | Verified (64 days) | S1 | 8.0.45 | Any | Any | Inconsistent CAST Handling of Out-of-Range TEXT Values in Single Table vs. View/Join Paths |
| 120782 | 2026-06-25 20:24 | 2026-06-26 4:47 | MySQL Server: Optimizer | Verified (60 days) | S2 | 9.7.0 | Linux | Any | Derived merge: temporal expr ignores NULL-extended LEFT JOIN row |
| 120785 | 2026-06-26 4:17 | 2026-06-26 9:20 | MySQL Server: Optimizer | Duplicate (60 days) | S1 | MySQL 9.6 | Any | Any | Temporary Table Deduplication Uses Binary Comparison for FLOAT -0 and +0, Incorrectly Treating Them as Distinct Values |
| 120786 | 2026-06-26 4:51 | 2026-06-26 8:50 | MySQL Server: Optimizer | Duplicate (60 days) | S1 | MySQL 9.6 | Any | Any | Derived Table Materialization with Pushed-Down IN Condition Causes Empty Result Instead of NULL for Aggregate |
| 120787 | 2026-06-26 11:04 | 2026-06-27 2:48 | MySQL Server: Optimizer | Documenting (60 days) | S2 | 9.7.0 | Any | Any | IN (DATE/TIME constant list) wrongly TRUE for non-temporal string |
| 120800 | 2026-06-28 11:51 | 2026-06-29 2:48 | MySQL Server: Optimizer | Not a Bug (57 days) | S1 | MySQL 9.6 | Any | Any | LATERAL Derived Table Merge Causes Type Propagation Error, FLOAT Precision Loss in CASE Expression Constants |
| 120801 | 2026-06-28 12:22 | 2026-06-29 6:15 | MySQL Server: Optimizer | Not a Bug (57 days) | S1 | MySQL 9.6 | Any | Any | ROW_NUMBER() Aligned Derived Table Causes Inconsistent Comparison Behavior for LEAST(Double, Double) = BIGINT Condition |
| 120802 | 2026-06-28 12:34 | 2026-06-28 20:51 | MySQL Server: Optimizer | Can't repeat (58 days) | S1 | MySQL 9.6 | Any | Any | Index Lookup with COALESCE Constant Causes Truncation to 0, Incorrectly Matching BIGINT Column |
| 120803 | 2026-06-28 13:20 | 2026-06-29 2:51 | MySQL Server: Optimizer | Verified (57 days) | S1 | 9.6 | Any | Any | CTE Materialization Causes LEAST to Degenerate from String Comparison to Numeric Comparison |
| 120814 | 2026-06-30 2:27 | 2026-06-30 10:28 | MySQL Server: Optimizer | Duplicate (56 days) | S2 | 8.0.46 | Any | Any | Wrong result with indexed INT comparison to fractional DECIMAL/function expression |
| 120821 | 2026-07-01 8:16 | 2026-07-08 11:11 | MySQL Server: Optimizer | Verified (48 days) | S2 | 9.5.0 | Any | Any | SELECT DISTINCT makes an equivalent query ~170x faster on round90.t1 in MySQL 9.5.0 |
| 120832 | 2026-07-02 10:02 | 2026-07-20 11:08 | MySQL Server: Optimizer | Verified (54 days) | S1 | 9.1 | Any | Any | WITH ROLLUP Super‑Aggregate Row Missing in Zero Input Rows Short‑Circuit Path |
| 120833 | 2026-07-02 10:32 | 2026-07-21 16:27 | MySQL Server: Optimizer | Verified (53 days) | S1 | 8.0.46, 8.4.10, 9.7.1 | Any | Any | Index Lookup Truncates DOUBLE to BIGINT for IF(NULL, …) and GREATEST(string, double) in IN Conditions |
| 120834 | 2026-07-02 10:38 | 2026-07-21 16:25 | MySQL Server: Optimizer | Verified (54 days) | S1 | 8.0.46, 8.4.10, 9.7.1 | Any | Any | AVG on Large DOUBLE Values Returns Inconsistent Results Across Execution Paths (Index Scan vs. Temporary Table) |
| 120836 | 2026-07-02 15:08 | 2026-07-02 19:35 | MySQL Server: Optimizer | Verified (54 days) | S2 | 9.6.0 | Ubuntu | Any | Wrong result with VIEW, UNION, MAKETIME(), MEDIUMTEXT and NOT IN subquery containing NULL |
| 120837 | 2026-07-02 15:20 | 2026-07-02 19:44 | MySQL Server: Optimizer | Verified (54 days) | S2 | 9.6.0 | Any | Any | Wrong result with CTE, UNION ALL, GROUP BY/HAVING and LOCATE('', column) |
| 120838 | 2026-07-02 15:28 | 2026-08-10 18:00 | MySQL Server: Optimizer | Verified (15 days) | S2 | 9.6.0 | Ubuntu | Any | Wrong result with CTE, UNION, BIT column and NOT IN subquery containing NULL |
| 120839 | 2026-07-02 15:37 | 2026-07-02 20:04 | MySQL Server: Optimizer | Verified (54 days) | S2 | 9.6.0 | Ubuntu | Any | Wrong result with CTE, YEAR column, scalar subquery, outer UNION and MAX() aggregate |
| 120840 | 2026-07-02 16:20 | 2026-07-02 20:09 | MySQL Server: Optimizer | Verified (54 days) | S2 | 9.6.0 | Ubuntu | Any | VIEW and equivalent CTE differ when LOWER(JSON_TYPE(...)) is compared with JSON_TYPE() result in a UNION query |
| 120841 | 2026-07-02 16:26 | 2026-07-02 20:14 | MySQL Server: Optimizer | Verified (54 days) | S2 | 9.6.0 | Ubuntu | Any | Wrong result with CTE, ORDER BY LIMIT, GROUP BY, SUM() and outer UNION |
| 120842 | 2026-07-02 16:34 | 2026-07-02 20:22 | MySQL Server: Optimizer | Verified (54 days) | S2 | 9.6.0 | Ubuntu | Any | Wrong result with CTE, DISTINCT, NULL vs empty string, GROUP_CONCAT() and UNION |
| 120843 | 2026-07-02 16:43 | 2026-07-03 9:14 | MySQL Server: Optimizer | Verified (53 days) | S2 | 9.6.0 | Ubuntu | Any | VIEW and CTE return wrong results with YEAR(), UNION and uncorrelated EXISTS subquery |
| 120844 | 2026-07-02 16:47 | 2026-07-03 16:21 | MySQL Server: Optimizer | Can't repeat (53 days) | S2 | 9.6.0 | Ubuntu | Any | Wrong result with VIEW, DAYNAME(), UNION and NOT IN subquery |
| 120845 | 2026-07-02 16:55 | 2026-07-03 7:44 | MySQL Server: Optimizer | Verified (53 days) | S2 | 9.6.0 | Ubuntu | Any | Wrong result with CTE, nested STDDEV_POP(), GROUP BY and UNION |
| 120846 | 2026-07-02 17:00 | 2026-07-03 7:49 | MySQL Server: Optimizer | Verified (53 days) | S2 | 9.6.0 | Ubuntu | Any | Wrong result with CTE, AVG(NUMERIC(62)), MIN() and derived table join |
| 120853 | 2026-07-03 5:42 | 2026-07-03 10:12 | MySQL Server: Optimizer | Verified (53 days) | S2 | 9.6.0,9.7.0 | Ubuntu | Any | Wrong result with LOWER(JSON), UPPER() comparison and utf8mb4_bin collation in VIEW/CTE |
| 120854 | 2026-07-03 5:49 | 2026-07-06 15:23 | MySQL Server: Optimizer | Verified (50 days) | S2 | 9.6.0,9.7.0 | Ubuntu | Any | Wrong result with COALESCE(YEAR, 0), arithmetic and window function in VIEW/CTE |
| 120855 | 2026-07-03 6:02 | 2026-07-07 7:18 | MySQL Server: Optimizer | Verified (49 days) | S2 | 9.6.0,9.7.0 | Ubuntu | Any | Wrong result with QUOTE(NULL) in VIEW/CTE WHERE predicate |
| 120857 | 2026-07-03 6:23 | 2026-07-07 7:25 | MySQL Server: Optimizer | Verified (49 days) | S2 | 9.6.0,9.7.0 | Ubuntu | Any | Wrong result with LOWER(REVERSE(ST_AsGeoJSON())) comparison under utf8mb4_bin collation in VIEW/CTE |
| 120862 | 2026-07-04 9:09 | 2026-07-04 13:45 | MySQL Server: Optimizer | Duplicate (52 days) | S1 | MySQL9.7.1 | Any | Any | LEFT JOIN Rewrite with Condition Pushdown Incorrectly Binds Column to Right Table, Causing All Rows to Be Filtered Out |
| 120863 | 2026-07-04 9:15 | 2026-07-04 13:46 | MySQL Server: Optimizer | Duplicate (52 days) | S1 | MySQL 9.7.1 | Any | Any | Scalar Subquery Column Loses Non‑NULL Values in DISTINCT Temporary Table, All Rows Become NULL |
| 120864 | 2026-07-04 9:34 | 2026-07-04 13:47 | MySQL Server: Optimizer | Duplicate (52 days) | S1 | MySQL 9.7.1 | Any | Any | AGGREGATE_THEN_MERGE Causes Incorrect Column Mapping for GROUP BY Expression, Returning NULL Instead of Actual Value |
| 120865 | 2026-07-04 9:50 | 2026-07-04 13:47 | MySQL Server: Optimizer | Duplicate (52 days) | S1 | MySQL 9.7.1 | Any | Any | MIN(DISTINCT IFNULL(NULL, col)) Returns NULL After JOIN with JSON Subquery Due to Incorrect DISTINCT Temporary Table Han |
| 120866 | 2026-07-04 10:08 | 2026-07-06 5:46 | MySQL Server: Optimizer | Duplicate (50 days) | S1 | MySQL 9.7.1 | Any | Any | Hash Join with CTE Materialization Incorrectly Treats Non‑NULL Columns as NULL, Causing LEAST to Return NULL |
| 120867 | 2026-07-04 10:14 | 2026-07-21 15:50 | MySQL Server: Optimizer | Verified (50 days) | S1 | 8.0.46, 8.4.10, 9.7.1 | Any | Any | Const Table Optimization Incorrectly Evaluates FLOAT Comparison with Extreme DOUBLE Constant Due to Overflow |
| 120899 | 2026-07-13 7:34 | 2026-08-03 13:59 | MySQL Server: Optimizer | Verified (22 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Any | Any | An equivalent query becomes much slower after a redundant duplicated IN-subquery predicate is added |
| 120900 | 2026-07-13 8:03 | 2026-08-06 14:48 | MySQL Server: Optimizer | Patch pending (22 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Any | Any | Redundant OR FALSE Predicate Causes a Much Slower Plan |
| 120903 | 2026-07-13 9:57 | 2026-07-21 15:45 | MySQL Server: Optimizer | Verified (42 days) | S1 | 8.0.46, 8.4.10, 9.7.1 | Any | Any | WITH ROLLUP in Derived Table Incorrectly Evaluates IFNULL Expression Due to Partial NULL Propagation |
| 120905 | 2026-07-13 10:06 | 2026-07-20 11:02 | MySQL Server: Optimizer | Verified (42 days) | S1 | 9.1 | Any | Any | CASE Expression with Mixed FLOAT/INT Constant Returns Different Results in Single Table vs. Derived Table Due to Type In |
| 120907 | 2026-07-13 10:36 | 2026-07-21 15:19 | MySQL Server: Optimizer | Verified (42 days) | S1 | 8.0.46, 8.4.10, 9.7.1 | Any | Any | Index Lookup Loses Unary Plus Operator During Condition Pushdown, Causing String-to-Integer Truncation and Wrong Match |
| 120908 | 2026-07-13 10:50 | 2026-07-20 11:16 | MySQL Server: Optimizer | Verified (42 days) | S1 | 9.1 | Any | Any | DISTINCTROW with GROUP BY in Derived Table Loses Rows Due to Incomplete Duplicate Removal Key |
| 120909 | 2026-07-13 11:05 | 2026-07-21 15:16 | MySQL Server: Optimizer | Verified (42 days) | S1 | 8.0.46, 8.4.10, 9.7.1 | Any | Any | ROLLUP Incorrectly Sets Base Group Row to NULL for Constant Folded Expression |
| 120911 | 2026-07-13 13:28 | 2026-07-14 7:03 | MySQL Server: Optimizer | Verified (42 days) | S2 | 9.6.0,9.7.0 | Ubuntu | Any | Wrong result after predicate pushdown to HAVING for SUM(DOUBLE) in VIEW/CTE |
| 120915 | 2026-07-14 7:17 | 2026-07-14 10:23 | MySQL Server: Optimizer | Not a Bug (42 days) | S2 | 9.5.0 | Any | Any | Adding Redundant OR FALSE Lets Optimizer Detect Impossible WHERE |
| 120935 | 2026-07-15 10:45 | 2026-07-22 14:06 | MySQL Server: Optimizer | Verified (34 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Any | Any | Duplicate equivalent EXISTS predicate is not eliminated and causes a much slower execution plan |
| 120943 | 2026-07-16 5:53 | 2026-07-21 16:53 | MySQL Server: Optimizer | Duplicate (35 days) | S2 | 8.0.42, 8.0.44, 8.0.46, 8.4.10 | Any (Official mysql Docker images (Linux/aarch64)) | Any | Semijoin duplicate-weedout discards valid rows when fed by a rowid filesort |
| 120956 | 2026-07-19 12:30 | 2026-07-22 14:02 | MySQL Server: Optimizer | Verified (34 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Ubuntu | Any | MySQL does not normalize duplicated OR predicates, causing a ~158x execution-time difference for equivalent WHERE clause |
| 120966 | 2026-07-21 5:58 | 2026-07-22 8:41 | MySQL Server: Optimizer | Verified (34 days) | S1 | 8.0.46, 8.4.10, 9.7.1 | Any | Any | LEAST Expression Incorrectly Evaluated as Integer for Index Lookup in IN Condition |
| 120967 | 2026-07-21 6:04 | 2026-07-21 17:28 | MySQL Server: Optimizer | Duplicate (35 days) | S1 | MySQL 9.7.1 | Any | Any | DECIMAL DESC Index with Index Condition Pushdown Mis‑evaluates CASE Expression, Incorrectly Keeping Rows |
| 120968 | 2026-07-21 6:13 | 2026-07-21 17:21 | MySQL Server: Optimizer | Duplicate (35 days) | S1 | MySQL 9.7.1 | Any | Any | RIGHT JOIN to LEFT JOIN Rewrite Causes IFNULL Field Mapping to Wrong Table, Returning NULL |
| 120969 | 2026-07-21 6:27 | 2026-07-21 17:38 | MySQL Server: Optimizer | Duplicate (35 days) | S1 | MySQL 9.7.1 | Any | Any | Covering Index Scan Incorrectly Interprets DECIMAL Values as NULL, Causing Wrong Filtering |
| 120970 | 2026-07-21 6:38 | 2026-07-21 17:36 | MySQL Server: Optimizer | Duplicate (35 days) | S1 | 9.7.1 | Any | Any | TempTable Engine Incorrectly Treats XOR Result Value 1 as NULL in GROUP BY, Merging Groups |
| 120971 | 2026-07-21 9:01 | 2026-08-20 5:52 | MySQL Server: Optimizer | Verified (34 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Any | Any | Redundant IS NOT NULL on SHA2() expression causes extra evaluation and slower execution |
| 120972 | 2026-07-21 13:42 | 2026-07-22 12:09 | MySQL Server: Optimizer | Verified (34 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Any | Any | Redundant outer DISTINCT creates a second temporary-table deduplication above EXCEPT in MySQL |
| 120973 | 2026-07-21 13:44 | 2026-07-22 12:10 | MySQL Server: Optimizer | Duplicate (34 days) | S2 | 9.7.1 | Any | Any | Redundant outer DISTINCT creates a second temporary-table deduplication above INTERSECT in MySQL |
| 120975 | 2026-07-22 4:42 | 2026-07-22 9:05 | MySQL Server: Optimizer | Verified (34 days) | S1 | 8.0.46, 8.4.10, 9.7.1 | Any | Any | Mixed-Type IFNULL Constant Causes Wrong Integer Conversion in Index Lookup |
| 120976 | 2026-07-22 4:45 | 2026-07-22 9:34 | MySQL Server: Optimizer | Verified (34 days) | S1 | 9.3 | Any | Any | LATERAL Derived Table Causes IFNULL to Ignore Inner Table Column, Returning NULL for All Rows |
| 120981 | 2026-07-23 9:11 | 2026-07-29 11:57 | MySQL Server: Optimizer | Duplicate (27 days) | S1 | 9.7.1 | Any | Any | IFNULL(NULL, column) Returns NULL in STRAIGHT_JOIN Covering Index Scan, Filtering All Rows |
| 120983 | 2026-07-23 10:07 | 2026-07-29 10:20 | MySQL Server: Optimizer | Verified (27 days) | S2 | 9.7.1 | Ubuntu | Any | Wrong result for NOT IN subquery on a BIT column while an equivalent materialized query returns the expected row |
| 120984 | 2026-07-23 10:19 | 2026-07-30 6:55 | MySQL Server: Optimizer | Verified (26 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Ubuntu | Any | Inconsistent type metadata and display for COALESCE() on a BIT column before and after CREATE TABLE AS SELECT |
| 120985 | 2026-07-23 10:39 | 2026-08-06 12:46 | MySQL Server: Optimizer | Verified (19 days) | S2 | 9.6.0,9.7.0 | Ubuntu | Any | ENUM comparison with a CHAR() binary-string expression changes after CREATE TABLE AS SELECT materialization |
| 120986 | 2026-07-23 12:12 | 2026-08-21 7:53 | MySQL Server: Optimizer | Not a Bug (4 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Ubuntu | Any | Inconsistent comparison result between JSON scalar and dynamic comparison expression vs CTAS materialized boolean/intege |
| 120987 | 2026-07-23 12:16 | 2026-08-06 7:44 | MySQL Server: Optimizer | Verified (19 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Ubuntu | Any | Inconsistent boolean evaluation of LEAST(TIME, VARCHAR) between dynamic calculation and CTAS materialized column |
| 120988 | 2026-07-23 12:31 | 2026-08-03 6:40 | MySQL Server: Optimizer | Verified (22 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Any | Any | Redundant DISTINCT in UNION, INTERSECT and EXCEPT branches is not eliminated |
| 120990 | 2026-07-23 12:50 | 2026-08-03 6:49 | MySQL Server: Optimizer | Verified (22 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Ubuntu | Any | Inconsistent boolean evaluation between MAX(ENUM) aggregate expression and CTAS materialized ENUM column |
| 120991 | 2026-07-23 12:59 | 2026-08-03 6:50 | MySQL Server: Optimizer | Verified (22 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Ubuntu | Any | Inconsistent comparison behavior between integer and ADDDATE(DATETIME, 0) expression vs CTAS materialized column |
| 120992 | 2026-07-23 13:06 | 2026-08-03 6:53 | MySQL Server: Optimizer | Verified (22 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Ubuntu | Any | Inconsistent comparison behavior between CHARSET() string expression vs CTAS materialized column against hex literal (0x |
| 120993 | 2026-07-23 13:58 | 2026-08-03 7:19 | MySQL Server: Optimizer | Duplicate (22 days) | S2 | 9.6.0 | Ubuntu | Any | Incorrect query result when evaluating IN predicate with BIT_COUNT(NULL)/LEAST(NULL) on table without UNIQUE index |
| 120994 | 2026-07-23 14:09 | 2026-08-03 8:57 | MySQL Server: Optimizer | Verified (22 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Ubuntu | Any | Inconsistent JOIN result when comparing TEXT and DECIMAL columns with and without UNIQUE index |
| 120995 | 2026-07-23 14:15 | 2026-08-03 10:48 | MySQL Server: Optimizer | Not a Bug (22 days) | S2 | 9.6.0,9.7.0 | Ubuntu | Any | Inconsistent result for IN predicate with IF(FLOAT, FLOAT, VARCHAR) expression on FLOAT column with UNIQUE index |
| 120997 | 2026-07-23 15:31 | 2026-08-06 8:02 | MySQL Server: Optimizer | Verified (19 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Ubuntu | Any | Incorrect index lookup range pushdown/coercion for IN (COALESCE(decimal, string)) on integer indexed column violates TLP |
| 120998 | 2026-07-23 15:39 | 2026-08-03 10:55 | MySQL Server: Optimizer | Verified (22 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Ubuntu | Any | Inconsistent evaluation of NOT ((CASE WHEN ... LIKE a) OR a) on SMALLINT ZEROFILL UNIQUE column causes duplicate rows |
| 120999 | 2026-07-23 15:41 | 2026-07-28 14:03 | MySQL Server: Optimizer | Duplicate (28 days) | S2 | 9.6.0,9.7.0 | Ubuntu | Any | Incorrect index lookup range pushdown for NOT IN / IN (decimal) on TINYINT column violates TLP partitioning |
| 121000 | 2026-07-23 15:43 | 2026-07-28 13:55 | MySQL Server: Optimizer | Duplicate (28 days) | S2 | 9.6.0,9.7.0 | Ubuntu | Any | Incorrect index lookup range pushdown for (decimal constant NOT IN (indexed_int_column)) negation causes duplicate rows |
| 121001 | 2026-07-23 16:12 | 2026-07-28 13:13 | MySQL Server: Optimizer | Verified (28 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Ubuntu | Any | Incorrect evaluation of NOT (A AND NOT A AND (A IS NOT NULL)) drops NULL rows due to invalid ternary logic simplificatio |
| 121006 | 2026-07-24 8:32 | 2026-07-28 13:19 | MySQL Server: Optimizer | Duplicate (28 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | Any | Any | Empty INTERSECT branch does not prevent scanning the other input |
| 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 |
| 121026 | 2026-07-29 3:26 | 2026-07-31 11:37 | MySQL Server: Optimizer | Verified (25 days) | S2 | 8.0.42, 8.0.46, 8.4.9, 9.7.2 | Any (official mysql Docker images, linux/arm64 and linux/amd64) | Any | Semijoin duplicate-weedout missing from plan: EXISTS + NOT EXISTS returns duplicate rows |
| 121028 | 2026-07-29 6:09 | 2026-07-31 11:49 | MySQL Server: Optimizer | Verified (25 days) | S2 | 9.7.1 | MacOS | ARM | Cardinality Check Granularity Error in subquery_to_derived |
| 121038 | 2026-07-30 8:59 | 2026-08-04 14:48 | MySQL Server: Optimizer | Patch pending (22 days) | S1 | 9.7.1 | MacOS | ARM | hypergraph_optimizer=on silently updates/deletes the wrong rows for single-table UPDATE/DELETE with ORDER BY when the WH |
| 121040 | 2026-07-30 9:06 | 2026-08-03 8:00 | MySQL Server: Optimizer | Verified (22 days) | S2 | 8.0.46, 8.4.10, 9.7.1 | MacOS | ARM | derived condition pushdown across a set operation ignores collation equality, breaking predicate monotonicity (default) |
| 121079 | 2026-08-12 12:49 | 2026-08-12 17:31 | MySQL Server: Optimizer | Verified (13 days) | S2 | 8.4.9 | Linux | Any | Wrong result: quantified comparison subquery (>= ALL etc.) evaluates FALSE under double negation |
| 121091 | 2026-08-13 14:00 | 2026-08-14 11:08 | MySQL Server: Optimizer | Verified (11 days) | S2 | 8.0.46, 8.4.11, 9.7.2 | Any | Any | Wrapping a SET column in VIEW/CTE changes `HAVING MAX(set_col) > numeric_literal` semantics |
| 121141 | 2026-08-20 1:50 | 2026-08-20 5:26 | MySQL Server: Optimizer | Verified (5 days) | S1 | 8.0.46, 8.4.11, 9.7.2 | Any | Any | group skip scan for deduplication collapses each group to one row before a semijoin/antijoin condition on a later index |
| 121142 | 2026-08-20 1:50 | 2026-08-20 5:21 | MySQL Server: Optimizer | Duplicate (5 days) | S1 | 8.0.41, 8.4.11, 9.4.0, 9.7.1 | Any | Any | group skip scan for deduplication collapses each group to one row before a semijoin/antijoin condition on a later index |
| 121149 | 2026-08-21 13:17 | 2026-08-21 20:37 | MySQL Server: Optimizer | Verified (4 days) | S2 | 9.7.1 | Any | Any | MySQL temporal implicit conversion changes `TIMEDIFF` predicate results after materialization |
| 121154 | 2026-08-22 10:17 | 2026-08-25 7:12 | MySQL Server: Optimizer | Duplicate | 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 | 2026-08-22 15:02 | MySQL Server: Optimizer | Open | 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 | 2026-08-23 6:40 | MySQL Server: Optimizer | Open (2 days) | S1 | 9.7.1 | Any | Any | Timezone-dependent generated column breaks UNIQUE and makes table unrestorable |
| 119154 | 2025-10-14 13:24 | 2026-01-13 10:22 | MySQL Server: Data Types | Verified (224 days) | S1 | 8.4.6 | Any | Any | Incorrect BIT_COUNT value for TEXT column |
| 119432 | 2025-11-20 8:47 | 2025-12-07 21:44 | MySQL Server: Data Types | Verified (261 days) | S1 | 8.0 | Any | Any | Inconsistent time conversion behaviors between text and integer |
| 119433 | 2025-11-20 9:30 | 2025-12-07 21:58 | MySQL Server: Data Types | Verified (261 days) | S1 | 8.4.6 | Any | Any | Inconsistent date conversion behaviors between text and integer |
| 119586 | 2025-12-23 9:09 | 2025-12-26 16:50 | MySQL Server: Data Types | Verified (242 days) | S1 | 8.4.7 | Any | Any | Inconsistent results for date conversion |
| 119591 | 2025-12-24 7:27 | 2025-12-26 17:48 | MySQL Server: Data Types | Verified (242 days) | S1 | 8.0.44 | Any | Any | Incorrect result type for NULLIF(DOUBLE,BIGINT) function |
| 120222 | 2026-04-07 12:02 | 2026-04-09 19:30 | MySQL Server: Data Types | Verified (138 days) | S2 | 9.6.0 | Linux | Any | VECTOR(n) dimension silently wraps to wrong value due to integer overflow in parser |
| 120223 | 2026-04-07 12:06 | 2026-04-09 19:33 | MySQL Server: Data Types | Verified (138 days) | S2 | 9.6.0 | Linux | Any | VECTOR(0) silently accepted, produces unusable column with corrupted metadata (dimension 4294967295) |
| 120847 | 2026-07-02 17:28 | 2026-07-03 9:22 | MySQL Server: Data Types | Verified (53 days) | S2 | 9.6.0 | Ubuntu | Any | Inconsistent comparison behavior for ENUM-derived CASE expression between VIEW/CTE and TEMPORARY TABLE |
| 120848 | 2026-07-02 17:43 | 2026-07-03 16:34 | MySQL Server: Data Types | Verified (53 days) | S2 | 9.6.0 | Ubuntu | Any | Inconsistent comparison behavior for MAKETIME() expression between VIEW/CTE and TEMPORARY TABLE |
| 120849 | 2026-07-02 17:52 | 2026-07-03 11:01 | MySQL Server: Data Types | Duplicate (53 days) | S2 | 9.6.0 | Ubuntu | Any | Wrong result / inconsistent comparison behavior for SEC_TO_TIME() expression between VIEW/CTE and TEMPORARY TABLE |
| 120851 | 2026-07-03 5:24 | 2026-07-03 16:17 | MySQL Server: Data Types | Duplicate (53 days) | S2 | 9.6.0,9.7.0 | Ubuntu | Any | Wrong result / inconsistent comparison behavior for TIME() expression between VIEW/CTE and TEMPORARY TABLE |
| 120852 | 2026-07-03 5:32 | 2026-07-03 10:09 | MySQL Server: Data Types | Verified (53 days) | S2 | 9.6.0,9.7.0 | Ubuntu | Any | Wrong result with YEAR() over DATE after UNION: value displayed as 0000 but satisfies vc > 1970 |
| 120856 | 2026-07-03 6:15 | 2026-07-08 8:18 | MySQL Server: Data Types | Verified (48 days) | S2 | 9.7.0 | Any | Any | COERCIBILITY() differs for expression-derived strings between VIEW/CTE and TEMPORARY TABLE |
| 121153 | 2026-08-22 6:36 | 2026-08-22 10:52 | MySQL Server: Data Types | Not a Bug (3 days) | S2 | 9.7.1 | Any | Any | Materializing a UNION prefix in a CTE changes TIME values in the final UNION result |
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