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MDEV-15492: Subquery crash similar to MDEV-10050

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Detection of first execution of PS fixed.
More debug info.
This commit is contained in:
Oleksandr Byelkin
2018-03-21 12:13:37 +01:00
parent 2dd4e50d5f
commit f3994b7432
4 changed files with 65 additions and 1 deletions
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23
mysql-test/r/ps_qc_innodb.result Normal file
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#
# MDEV-15492: Subquery crash similar to MDEV-10050
#
SET @qcs.save= @@global.query_cache_size, @qct.save= @@global.query_cache_type;
SET GLOBAL query_cache_size= 512*1024*1024, query_cache_type= ON;
CREATE TABLE t1 (a INT) ENGINE=InnoDB;
CREATE TABLE t2 (b INT) ENGINE=InnoDB;
CREATE VIEW v AS select a from t1 join t2;
PREPARE stmt1 FROM "SELECT * FROM t1 WHERE a in (SELECT a FROM v)";
PREPARE stmt2 FROM "SELECT * FROM t1 WHERE a in (SELECT a FROM v)";
EXECUTE stmt2;
a
EXECUTE stmt1;
a
INSERT INTO t2 VALUES (0);
EXECUTE stmt1;
a
START TRANSACTION;
EXECUTE stmt1;
a
DROP VIEW v;
DROP TABLE t1, t2;
SET GLOBAL query_cache_size= @qcs.save, query_cache_type= @qct.save;