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merge 5.0-opt -> 5.1-opt

This commit is contained in:
unknown
2007-11-23 13:40:53 +02:00
parent c00bfc3bee
commit 339e8f5d63
3 changed files with 103 additions and 2 deletions

View File

@ -4139,6 +4139,107 @@ SELECT (SELECT SUM(t1.a) FROM t2 WHERE a=1) FROM t1;
(SELECT SUM(t1.a) FROM t2 WHERE a=1)
3
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 index a b 5 NULL 9 Using where; Using filesort
3 SUBQUERY t1 index a b 5 NULL 9 Using where; Using filesort
4 SUBQUERY t1 index a b 5 NULL 9 Using where; Using filesort
5 SUBQUERY t1 index a b 5 NULL 9 Using where; Using filesort
6 SUBQUERY t1 index a b 5 NULL 9 Using where; Using filesort
7 SUBQUERY t1 index a b 5 NULL 9 Using where; Using filesort
8 SUBQUERY t1 index a b 5 NULL 9 Using where; Using filesort
9 SUBQUERY t1 index a b 5 NULL 9 Using where; Using filesort
10 SUBQUERY t1 index a b 5 NULL 9 Using where; Using filesort
11 SUBQUERY t1 index a b 5 NULL 9 Using where; 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
drop table t1;
CREATE TABLE t1 (a1 INT, a2 INT);
CREATE TABLE t2 (b1 INT, b2 INT);
INSERT INTO t1 VALUES (100, 200);