#
# Bug #11880012: INDEX_SUBQUERY, BLACKHOLE,
#                HANG IN PREPARING WITH 100% CPU USAGE
#
CREATE TABLE t1(a INT NOT NULL);
INSERT INTO t1 VALUES (1), (2), (3);
CREATE TABLE t2 (a INT UNSIGNED, b INT, UNIQUE KEY (a, b)) ENGINE=BLACKHOLE;
SELECT 1 FROM t1 WHERE a = ANY (SELECT a FROM t2);
1
DROP TABLE t1, t2;
create temporary table t1 (a int) engine=blackhole;
lock table t1 write;
truncate table t1;
select * from t1;
a
unlock tables;
drop temporary table t1;
End of 5.5 tests