diff --git a/mysql-test/r/subselect4.result b/mysql-test/r/subselect4.result index cb2190ef5ac..3c5db147e4a 100644 --- a/mysql-test/r/subselect4.result +++ b/mysql-test/r/subselect4.result @@ -1815,4 +1815,72 @@ SELECT DISTINCT f4 FROM t1)); f2 f1 drop table t1, t2, t3, t4; +# +# LP BUG#611690 Crash in select_describe() with nested subqueries +# +CREATE TABLE t1 ( +col_int_key int(11) DEFAULT NULL, +col_varchar_key varchar(1) DEFAULT NULL, +col_varchar_nokey varchar(1) DEFAULT NULL, +KEY col_int_key (col_int_key), +KEY col_varchar_key (col_varchar_key,col_int_key) +) ENGINE=MyISAM DEFAULT CHARSET=latin1; +INSERT INTO t1 VALUES (8,'v','v'); +INSERT INTO t1 VALUES (9,'r','r'); +CREATE TABLE t2 ( +col_int_key int(11) DEFAULT NULL, +col_varchar_key varchar(1) DEFAULT NULL, +col_varchar_nokey varchar(1) DEFAULT NULL, +KEY col_int_key (col_int_key), +KEY col_varchar_key (col_varchar_key,col_int_key) +) ENGINE=MyISAM DEFAULT CHARSET=latin1; +INSERT INTO t2 VALUES (2,'w','w'); +INSERT INTO t2 VALUES (9,'m','m'); +set @old_optimizer_switch = @@optimizer_switch; +set @@optimizer_switch='subquery_cache=off,materialization=on,in_to_exists=off,semijoin=off'; +EXPLAIN +SELECT col_int_key +FROM t2 +WHERE (SELECT SUBQUERY2_t1.col_int_key +FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2 +ON SUBQUERY2_t2.col_varchar_key +WHERE SUBQUERY2_t2.col_varchar_nokey IN +(SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey)); +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t2 index NULL col_int_key 5 NULL 2 Using index +2 SUBQUERY SUBQUERY2_t1 index NULL col_int_key 5 NULL 2 Using index +2 SUBQUERY SUBQUERY2_t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) +3 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary +SELECT col_int_key +FROM t2 +WHERE (SELECT SUBQUERY2_t1.col_int_key +FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2 +ON SUBQUERY2_t2.col_varchar_key +WHERE SUBQUERY2_t2.col_varchar_nokey IN +(SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey)); +col_int_key +set @@optimizer_switch='subquery_cache=off,materialization=off,in_to_exists=on,semijoin=off'; +EXPLAIN +SELECT col_int_key +FROM t2 +WHERE (SELECT SUBQUERY2_t1.col_int_key +FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2 +ON SUBQUERY2_t2.col_varchar_key +WHERE SUBQUERY2_t2.col_varchar_nokey IN +(SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey)); +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t2 index NULL col_int_key 5 NULL 2 Using index +2 SUBQUERY SUBQUERY2_t1 index NULL col_int_key 5 NULL 2 Using index +2 SUBQUERY SUBQUERY2_t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) +3 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary +SELECT col_int_key +FROM t2 +WHERE (SELECT SUBQUERY2_t1.col_int_key +FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2 +ON SUBQUERY2_t2.col_varchar_key +WHERE SUBQUERY2_t2.col_varchar_nokey IN +(SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey)); +col_int_key +drop table t1, t2; +set @@optimizer_switch = @old_optimizer_switch; set optimizer_switch=@subselect4_tmp; diff --git a/mysql-test/t/subselect4.test b/mysql-test/t/subselect4.test index 1cc3a7314a3..3b55bd78c09 100644 --- a/mysql-test/t/subselect4.test +++ b/mysql-test/t/subselect4.test @@ -1494,4 +1494,68 @@ WHERE t3.f1 = ( drop table t1, t2, t3, t4; +--echo # +--echo # LP BUG#611690 Crash in select_describe() with nested subqueries +--echo # + +CREATE TABLE t1 ( + col_int_key int(11) DEFAULT NULL, + col_varchar_key varchar(1) DEFAULT NULL, + col_varchar_nokey varchar(1) DEFAULT NULL, + KEY col_int_key (col_int_key), + KEY col_varchar_key (col_varchar_key,col_int_key) +) ENGINE=MyISAM DEFAULT CHARSET=latin1; +INSERT INTO t1 VALUES (8,'v','v'); +INSERT INTO t1 VALUES (9,'r','r'); + +CREATE TABLE t2 ( + col_int_key int(11) DEFAULT NULL, + col_varchar_key varchar(1) DEFAULT NULL, + col_varchar_nokey varchar(1) DEFAULT NULL, + KEY col_int_key (col_int_key), + KEY col_varchar_key (col_varchar_key,col_int_key) +) ENGINE=MyISAM DEFAULT CHARSET=latin1; +INSERT INTO t2 VALUES (2,'w','w'); +INSERT INTO t2 VALUES (9,'m','m'); + +set @old_optimizer_switch = @@optimizer_switch; + +set @@optimizer_switch='subquery_cache=off,materialization=on,in_to_exists=off,semijoin=off'; +EXPLAIN +SELECT col_int_key +FROM t2 +WHERE (SELECT SUBQUERY2_t1.col_int_key + FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2 + ON SUBQUERY2_t2.col_varchar_key + WHERE SUBQUERY2_t2.col_varchar_nokey IN + (SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey)); +SELECT col_int_key +FROM t2 +WHERE (SELECT SUBQUERY2_t1.col_int_key + FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2 + ON SUBQUERY2_t2.col_varchar_key + WHERE SUBQUERY2_t2.col_varchar_nokey IN + (SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey)); + +set @@optimizer_switch='subquery_cache=off,materialization=off,in_to_exists=on,semijoin=off'; +EXPLAIN +SELECT col_int_key +FROM t2 +WHERE (SELECT SUBQUERY2_t1.col_int_key + FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2 + ON SUBQUERY2_t2.col_varchar_key + WHERE SUBQUERY2_t2.col_varchar_nokey IN + (SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey)); +SELECT col_int_key +FROM t2 +WHERE (SELECT SUBQUERY2_t1.col_int_key + FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2 + ON SUBQUERY2_t2.col_varchar_key + WHERE SUBQUERY2_t2.col_varchar_nokey IN + (SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey)); + +drop table t1, t2; + +set @@optimizer_switch = @old_optimizer_switch; + set optimizer_switch=@subselect4_tmp;