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Merge branch '10.11' into 11.0

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This commit is contained in:
Sergei Golubchik
2024-05-11 13:23:27 +02:00
parent fc670b46bd 3a06964468
commit f9807aadef
820 changed files with 18746 additions and 6295 deletions
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22
mysql-test/main/join_cache.result
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@ -6464,5 +6464,27 @@ b b d c c
10 NULL NULL NULL NULL
DROP TABLE t1,t2,t3,t4;
#
# MDEV-21102: Server crashes in JOIN_CACHE::write_record_data upon EXPLAIN with subqueries and constant tables
#
CREATE TABLE t1 (a int, b int) ENGINE=MyISAM;
CREATE TABLE t2 (c int, d int) ENGINE=MyISAM;
INSERT INTO t2 VALUES (1,10);
CREATE TABLE t3 (e int, key (e)) ENGINE=MyISAM;
INSERT INTO t3 VALUES (2),(3);
# Must not crash, must use join buffer in subquery
EXPLAIN
SELECT * FROM t1
WHERE a > b OR a IN (
SELECT c FROM t2 WHERE EXISTS (
SELECT * FROM t3 t3a JOIN t3 t3b WHERE t3a.e < d
)
);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 DEPENDENT SUBQUERY t2 system NULL NULL NULL NULL 1
3 SUBQUERY t3a range e e 5 NULL 2 Using where; Using index
3 SUBQUERY t3b index NULL e 5 NULL 2 Using index; Using join buffer (flat, BNL join)
DROP TABLE t1,t2,t3;
#
# End of 10.4 tests
#