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MDEV-18681 Server crashes in embedding_sjm

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Do not do substitution for best equal field in HAVING conditions.
It's not needed.
This commit is contained in:
Igor Babaev
2019-02-24 01:55:51 -08:00
parent 793f27a046
commit 31deef0953
3 changed files with 49 additions and 8 deletions
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20
mysql-test/main/having.test
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@ -890,3 +890,23 @@ SELECT t, next_seq_value() r FROM t1 FORCE INDEX(t)
DROP TABLE t1;
DROP FUNCTION next_seq_value;
DROP TABLE series;
--echo # End of 10.3 tests
--echo #
--echo # MDEV-18681: AND formula in HAVING with several occurances
--echo # of the same field f in different conjuncts + f=constant
--echo #
CREATE TABLE t1 (pk int, f varchar(1));
INSERT INTO t1 VALUES (2,'x'), (7,'y');
CREATE TABLE t2 (pk int);
INSERT INTO t2 VALUES (2), (3);
SELECT t.f
FROM (SELECT t1.* FROM (t1 JOIN t2 ON (t2.pk = t1.pk))) t
HAVING t.f != 112 AND t.f = 'x' AND t.f != 'a';
DROP TABLE t1,t2;
--echo # End of 10.4 tests