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| ID# | Date | Updated | Type | Status | Sev | Version | OS | CPU | Summary |
|---|---|---|---|---|---|---|---|---|---|
| 120279 | 2026-04-17 7:23 | 2026-04-17 14:09 | MySQL Server: Optimizer | Verified | S3 | 8.0.43 (MySQL Community Server - GPL) | Any | Any | Severe performance degradation with window function + joins (works fast in PostgreSQL/DuckDB/TiDB) |
| 120273 | 2026-04-15 15:39 | 2026-04-16 22:33 | MySQL Server: Memory storage engine | Verified (1 day) | S2 | 8.0.45 | Ubuntu (22.04) | x86 | Incorrect COUNT result when "SET SESSION internal_tmp_mem_storage_engine = MEMORY" is used |
| 120271 | 2026-04-15 10:54 | 2026-04-16 21:39 | MySQL Server: Optimizer | Verified (1 day) | S3 | 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 |
| 120270 | 2026-04-15 9:49 | 2026-04-16 21:20 | MySQL Server: Optimizer | Verified (1 day) | S1 | 8.0.45 | Any | Any | Incorrect result for INTERSECT ALL with semantically equivalent EXCEPT operands when right EXCEPT left operand is wrap |
| 120265 | 2026-04-14 8:24 | 2026-04-14 9:47 | MySQL Server: Optimizer | Verified (3 days) | S1 | 9.6.0 | Any | Any | Query returns with UNION, INTERSECT ALL and Derived SELECT DISTINCT |
| 120263 | 2026-04-14 5:30 | 2026-04-14 10:56 | MySQL Server: JSON | Verified (3 days) | S2 | 8.0.45 | Any | Any | Inconsistent results for query with JSON_CONTAINS and CAST(... AS SIGNED) |
| 120261 | 2026-04-14 2:52 | 2026-04-14 4:32 | MySQL Server: Optimizer | Verified (3 days) | S2 | 8.4.8 | Any | Any | CREATE VIEW materialization changes a key scalar output |
| 120260 | 2026-04-14 2:48 | 2026-04-14 4:42 | MySQL Server: Optimizer | Verified (3 days) | S2 | 8.4.8 | Any | Any | CREATE VIEW materialization changes byte-valued outputs after aggregate or window processing |
| 120259 | 2026-04-14 2:43 | 2026-04-14 4:49 | MySQL Server: Optimizer | Verified (3 days) | S2 | 8.4.8 | Any | Any | CREATE VIEW materialization changes byte-valued UNION results |
| 120258 | 2026-04-14 2:07 | 2026-04-14 4:45 | MySQL Server: Optimizer | Verified (3 days) | S2 | 8.4.8 | Any | Any | CREATE VIEW materialization changes NULL aggregate outputs into numeric values after GROUP BY |
| 120256 | 2026-04-13 11:44 | 2026-04-13 12:48 | MySQL Server: Optimizer | Verified (4 days) | S2 | 8.4.8 | Any | Any | CREATE VIEW materialization turns zero datetime values into runtime timestamps in UNION ALL output |
| 120255 | 2026-04-13 11:24 | 2026-04-13 13:04 | MySQL Server: Optimizer | Verified (4 days) | S2 | 8.4.8 | Any | Any | CREATE VIEW materialization changes grouped results when replacing a grouped CTE or derived input |
| 120253 | 2026-04-13 9:14 | 2026-04-13 10:18 | MySQL Server: Optimizer | Verified (4 days) | S3 | 8.0.45 | Ubuntu (Ubuntu 20.04.4 LTS) | x86 (Intel(R) Xeon(R) Platinum 8358P @ 2.60GHz (64 Cores, 96MB L3 Cache)) | Index Lookup Skips CAST for LONGTEXT-to-DATE Coercion in JOIN,Causing Plan-Dependent Result Divergence |
| 120251 | 2026-04-12 11:47 | 2026-04-13 4:58 | MySQL Server: DDL | Verified (4 days) | S2 | 9.6.0 | Any | Any | REPLACE INTO silently bypasses ON DELETE FK rules with innodb_native_foreign_keys=OFF |
| 120248 | 2026-04-11 9:16 | 2026-04-13 4:56 | MySQL Server: Optimizer | Verified (4 days) | S3 | 8.4.8 | Ubuntu | Any | Changing the order of GROUPING columns gives wrong results |
| 120247 | 2026-04-11 9:03 | 2026-04-13 5:02 | MySQL Server: Optimizer | Verified (4 days) | S3 | 8.4.8 | Ubuntu | Any | CREATE VIEW materialization changes RIGHT JOIN preserved-side filtering result cardinality |
| 120237 | 2026-04-08 17:05 | 2026-04-09 8:59 | MySQL Server: DDL | Verified (8 days) | S3 | 9.6 and 8.4 | Any | Any | DEFAULT(UUID()) allowed at CREATE TABLE but rejected in ALTER TABLE with binary logging enabled |
| 120231 | 2026-04-08 4:55 | 2026-04-11 11:50 | MySQL Server: Documentation | Verified (6 days) | S3 | 8.0.29 | Any | Any | Typo in MySQL 8.0.29 release note |
| 120227 | 2026-04-07 15:05 | 2026-04-13 23:15 | Connector / J | Verified (4 days) | S3 | 9.6.0 | Any | Any | LOAD DATA LOCAL INFILE: missing EOF packet on IOException leaves server thread hanging |
| 120225 | 2026-04-07 13:40 | 2026-04-08 4:30 | MySQL Server: Optimizer | Verified (9 days) | S3 | 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 |
| 120224 | 2026-04-07 12:25 | 2026-04-08 4:34 | MySQL Server: Optimizer | Verified (9 days) | S3 | 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 |
| 120223 | 2026-04-07 12:06 | 2026-04-09 19:33 | MySQL Server: Data Types | Verified (8 days) | S2 | 9.6.0 | Linux | Any | VECTOR(0) silently accepted, produces unusable column with corrupted metadata (dimension 4294967295) |
| 120222 | 2026-04-07 12:02 | 2026-04-09 19:30 | MySQL Server: Data Types | Verified (8 days) | S2 | 9.6.0 | Linux | Any | VECTOR(n) dimension silently wraps to wrong value due to integer overflow in parser |
| 120217 | 2026-04-05 12:27 | 2026-04-06 5:24 | MySQL Server: Optimizer | Verified (11 days) | S3 | 9.6.0 | Ubuntu (22.04) | Any | GROUPING() in ORDER BY of EXISTS/IN/ALL/ANY subquery: invalid arguments not rejected |
| 120215 | 2026-04-04 16:59 | 2026-04-06 5:38 | MySQL Server: Optimizer | Verified (11 days) | S3 | 9.6.0 | Ubuntu (22.04) | Any | Inconsistent window aggregate results with GROUP BY ... WITH ROLLUP |
| 120209 | 2026-04-03 9:39 | 2026-04-13 1:41 | MySQL Server: DDL | Verified (6 days) | S4 | 8.4.7 | Any | Any | Feature Request: EXPLAIN ALTER TABLE |
| 120203 | 2026-04-02 2:35 | 2026-04-04 19:49 | MySQL Server: Optimizer | Verified (13 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. |
| 120198 | 2026-04-01 7:45 | 2026-04-16 14:30 | MySQL Server: Replication | Verified (1 day) | S3 | 8.0.45 | Any | Any | Lost gtid after crash recovery |
| 120179 | 2026-03-30 10:54 | 2026-03-30 12:26 | MySQL Server: Optimizer | Verified (18 days) | S3 | 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 |
| 120174 | 2026-03-28 9:25 | 2026-03-29 20:21 | MySQL Server: Optimizer | Verified (19 days) | S3 | 8.0.45 | Ubuntu (22.04) | Any | Incorrect empty result for BETWEEN on binary string columns when a UNIQUE index is used |
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