mariadb/mysql-test/main/ps_mem_leaks.result

#
# MDEV-32369: Memory leak when executing PS for query with IN subquery
#
CREATE TABLE t1 (a VARCHAR(10)) ENGINE=MYISAM;
CREATE TABLE t2 (b VARCHAR(10) CHARACTER SET utf8) ENGINE=MYISAM;
INSERT INTO t1 VALUES ('b');
INSERT INTO t2 VALUES ('b');
PREPARE stmt FROM "SELECT t1.a FROM t1 WHERE t1.a IN (SELECT t2.b FROM t2)";
EXECUTE stmt;
a
b
EXECUTE stmt;
a
b
DEALLOCATE PREPARE stmt;
DROP TABLE t1, t2;
MDEV-32369: Memory leak when executing PS for query with IN subquery The memory allocated for an instance of the class Item_direct_ref_to_item was leaked on second execution of a query run as a prepared statement and involving conversion of strings with different character sets. The reason of leaking the memory was caused by the fact that a statement arena could be already set by the moment the method Type_std_attributes::agg_item_set_converter() is called. 2023-10-18 11:15:16 +07:00			`#`
			`# MDEV-32369: Memory leak when executing PS for query with IN subquery`
			`#`
			`CREATE TABLE t1 (a VARCHAR(10)) ENGINE=MYISAM;`
			`CREATE TABLE t2 (b VARCHAR(10) CHARACTER SET utf8) ENGINE=MYISAM;`
			`INSERT INTO t1 VALUES ('b');`
			`INSERT INTO t2 VALUES ('b');`
			`PREPARE stmt FROM "SELECT t1.a FROM t1 WHERE t1.a IN (SELECT t2.b FROM t2)";`
			`EXECUTE stmt;`
			`a`
			`b`
			`EXECUTE stmt;`
			`a`
			`b`
			`DEALLOCATE PREPARE stmt;`
			`DROP TABLE t1, t2;`