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ID# Date Updated Type Status Sev Version OS CPU Summary
1202962026-04-20
7:50
2026-04-20
9:24
MySQL Server: OptimizerVerifiedS28.0.45Ubuntu (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
1202942026-04-19
17:16
2026-04-20
8:38
MySQL Server: OptimizerVerifiedS38.0.45AnyAnyInconsistent fractional seconds precision (FSP) for TIME function results between VIEW and CTE
1202932026-04-19
17:10
2026-04-20
8:33
MySQL Server: OptimizerVerifiedS18.0.45AnyAnyQuery result inconsistency between VIEW and CTE involving a UNION of scalar aggregation and grouped aggregation
1202922026-04-19
17:01
2026-04-20
8:27
MySQL Server: OptimizerVerifiedS28.0.45AnyAnyInconsistent results between VIEW and CTE involving IN subquery and RIGHT JOIN
1202912026-04-19
16:45
2026-04-20
8:23
MySQL Server: OptimizerVerifiedS28.0.45AnyAnyInconsistent results between VIEW and CTE involving EXISTS subquery and LEFT JOIN
1202892026-04-19
14:35
2026-04-20
8:13
MySQL Server: OptimizerVerifiedS29.6Linux (Observed on Linux via the `mysql:9.6` )AnyMismatch in indexed `IN` under windows function query
1202882026-04-19
14:29
2026-04-20
8:04
MySQL Server: OptimizerVerifiedS28.0.45Linux (Observed on Linux via the `mysql:9.6` )AnyWindow function logic mismatch in indexed `NOT IN`
1202862026-04-19
5:14
2026-04-20
7:53
MySQL Server: OptimizerVerifiedS28.0.45AnyAny`SUM(DISTINCT pk)` returns `NULL` with a window function when a secondary index is used for group-by scanning
1202842026-04-18
15:46
2026-04-20
7:33
MySQL Server: OptimizerVerifiedS28.0.45Ubuntu (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
1202792026-04-17
7:23
2026-04-17
14:09
MySQL Server: OptimizerVerified
(3 days)
S38.0.43 (MySQL Community Server - GPL)AnyAnySevere performance degradation with window function + joins (works fast in PostgreSQL/DuckDB/TiDB)
1202752026-04-16
7:10
2026-04-20
6:51
MySQL Server: OptimizerVerifiedS28.0.45Ubuntu (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
1202732026-04-15
15:39
2026-04-16
22:33
MySQL Server: Memory storage engineVerified
(4 days)
S28.0.45Ubuntu (22.04)x86Incorrect COUNT result when "SET SESSION internal_tmp_mem_storage_engine = MEMORY" is used
1202712026-04-15
10:54
2026-04-16
21:39
MySQL Server: OptimizerVerified
(4 days)
S38.0.43 (MySQL Community Server - GPL)Any (Docker container)Any (x86_64)Logic error: EXISTS subquery treated as constant TRUE yields different result than literal TRUE
1202702026-04-15
9:49
2026-04-16
21:20
MySQL Server: OptimizerVerified
(4 days)
S18.0.45AnyAnyIncorrect result for INTERSECT ALL with semantically equivalent EXCEPT operands when right EXCEPT left operand is wrap
1202652026-04-14
8:24
2026-04-14
9:47
MySQL Server: OptimizerVerified
(6 days)
S19.6.0AnyAnyQuery returns with UNION, INTERSECT ALL and Derived SELECT DISTINCT
1202632026-04-14
5:30
2026-04-14
10:56
MySQL Server: JSONVerified
(6 days)
S28.0.45AnyAnyInconsistent results for query with JSON_CONTAINS and CAST(... AS SIGNED)
1202612026-04-14
2:52
2026-04-14
4:32
MySQL Server: OptimizerVerified
(6 days)
S28.4.8AnyAnyCREATE VIEW materialization changes a key scalar output
1202602026-04-14
2:48
2026-04-14
4:42
MySQL Server: OptimizerVerified
(6 days)
S28.4.8AnyAnyCREATE VIEW materialization changes byte-valued outputs after aggregate or window processing
1202592026-04-14
2:43
2026-04-14
4:49
MySQL Server: OptimizerVerified
(6 days)
S28.4.8AnyAnyCREATE VIEW materialization changes byte-valued UNION results
1202582026-04-14
2:07
2026-04-14
4:45
MySQL Server: OptimizerVerified
(6 days)
S28.4.8AnyAnyCREATE VIEW materialization changes NULL aggregate outputs into numeric values after GROUP BY
1202562026-04-13
11:44
2026-04-13
12:48
MySQL Server: OptimizerVerified
(7 days)
S28.4.8AnyAnyCREATE VIEW materialization turns zero datetime values into runtime timestamps in UNION ALL output
1202552026-04-13
11:24
2026-04-13
13:04
MySQL Server: OptimizerVerified
(7 days)
S28.4.8AnyAnyCREATE VIEW materialization changes grouped results when replacing a grouped CTE or derived input
1202532026-04-13
9:14
2026-04-13
10:18
MySQL Server: OptimizerVerified
(7 days)
S38.0.45Ubuntu (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
1202512026-04-12
11:47
2026-04-13
4:58
MySQL Server: DDLVerified
(7 days)
S29.6.0AnyAnyREPLACE INTO silently bypasses ON DELETE FK rules with innodb_native_foreign_keys=OFF
1202482026-04-11
9:16
2026-04-13
4:56
MySQL Server: OptimizerVerified
(7 days)
S38.4.8UbuntuAnyChanging the order of GROUPING columns gives wrong results
1202472026-04-11
9:03
2026-04-13
5:02
MySQL Server: OptimizerVerified
(7 days)
S38.4.8UbuntuAnyCREATE VIEW materialization changes RIGHT JOIN preserved-side filtering result cardinality
1202372026-04-08
17:05
2026-04-09
8:59
MySQL Server: DDLVerified
(11 days)
S39.6 and 8.4AnyAnyDEFAULT(UUID()) allowed at CREATE TABLE but rejected in ALTER TABLE with binary logging enabled
1202312026-04-08
4:55
2026-04-11
11:50
MySQL Server: DocumentationVerified
(9 days)
S38.0.29AnyAnyTypo in MySQL 8.0.29 release note
1202272026-04-07
15:05
2026-04-13
23:15
Connector / JVerified
(7 days)
S39.6.0AnyAnyLOAD DATA LOCAL INFILE: missing EOF packet on IOException leaves server thread hanging
1202252026-04-07
13:40
2026-04-08
4:30
MySQL Server: OptimizerVerified
(12 days)
S38.0.43 (MySQL Community Server - GPL)Any (Docker container)Any (x86_64)Inconsistent behavior between SELECT and DELETE/UPDATE with EXISTS and LEFT JOIN subquery
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