Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-5.0-opt (682f0e0d) · Commits · Software / OSDI20 Artifacts / mariadb

mysql-test/r/subselect.result

+31 −97

Original line number	Diff line number	Diff line
		@@ -4147,103 +4147,37 @@ DROP TABLE t1,t2;
		create table t1(a int,b int,key(a),key(b));
		insert into t1(a,b) values (1,2),(2,1),(2,3),(3,4),(5,4),(5,5),
		(6,7),(7,4),(5,3);
		select sum(a),a from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1
		)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1)
		group by a;
		sum(a) a
		select sum(a),a from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1)
		group by a;
		ERROR HY000: Thread stack overrun detected
		explain select sum(a),a from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1
		)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1)
		group by a;
		id select_type table type possible_keys key key_len ref rows Extra
		1 PRIMARY t1 index a a 5 NULL 9 Using where; Using index
		2 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort
		3 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort
		4 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort
		5 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort
		6 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort
		7 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort
		8 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort
		9 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort
		10 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort
		11 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort
		12 SUBQUERY t1 range a a 5 NULL 1 Using where; Using temporary; Using filesort
		13 SUBQUERY t1 index NULL a 5 NULL 9 Using index
		explain select sum(a),a from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1)
		group by a;
		ERROR HY000: Thread stack overrun detected
		5
		4
		3
		2
		1
		26
		25
		24
		23
		22
		21
		20
		19
		18
		17
		16
		15
		14
		13
		12
		11
		10
		9
		8
		7
		6
		5
		4
		3
		2
		1
		drop table t1;
		CREATE TABLE t1 (a1 INT, a2 INT);
		CREATE TABLE t2 (b1 INT, b2 INT);

mysql-test/t/subselect.test

+38 −86

Original line number	Diff line number	Diff line
		@@ -3006,92 +3006,44 @@ DROP TABLE t1,t2;
		create table t1(a int,b int,key(a),key(b));
		insert into t1(a,b) values (1,2),(2,1),(2,3),(3,4),(5,4),(5,5),
		(6,7),(7,4),(5,3);
		# test for the stack overflow bug
		select sum(a),a from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1
		)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1)
		group by a;
		--replace_regex /overrun.*$/overrun detected/
		--error 1436
		select sum(a),a from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1)
		group by a;
		# test for the memory consumption & subquery slowness bug
		explain select sum(a),a from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1
		)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1)
		group by a;
		--replace_regex /overrun.*$/overrun detected/
		--error 1436
		explain select sum(a),a from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
		select sum(a) from t1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1
		)group by b limit 1)group by b limit 1)group by b limit 1)
		group by a;

		let $nesting= 26;
		let $should_work_nesting= 5;
		let $start= select sum(a),a from t1 where a> ( select sum(a) from t1 ;
		let $end= )group by a ;
		let $start_app= where a> ( select sum(a) from t1 ;
		let $end_pre= )group by b limit 1 ;

		--disable_result_log
		--disable_query_log
		# At least 4 level nesting should work without errors
		while ($should_work_nesting)
		{
		--echo $should_work_nesting
		eval $start $end;
		eval explain $start $end;
		let $start= $start
		$start_app;
		let $end= $end_pre
		$end;
		dec $should_work_nesting;
		}
		# Other may fail with the 'stack overrun error'
		while ($nesting)
		{
		--echo $nesting
		--error 0,1436
		eval $start $end;
		--error 0,1436
		eval explain $start $end;
		let $start= $start
		$start_app;
		let $end= $end_pre
		$end;
		dec $nesting;
		}
		--enable_result_log
		--enable_query_log
		drop table t1;

		#