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merge 5.0-opt -> 5.1-opt

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unknown 2007-11-23 13:40:53 +02:00
parent c00bfc3bee
commit 339e8f5d63
3 changed files with 103 additions and 2 deletions
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101
mysql-test/r/subselect.result
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) (SELECT SUM(t1.a) FROM t2 WHERE a=1)
3 3
DROP TABLE t1,t2; 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 t1 (a1 INT, a2 INT);
CREATE TABLE t2 (b1 INT, b2 INT); CREATE TABLE t2 (b1 INT, b2 INT);
INSERT INTO t1 VALUES (100, 200); INSERT INTO t1 VALUES (100, 200);

2
sql/opt_range.cc
View File

@ -2162,7 +2162,7 @@ int SQL_SELECT::test_quick_select(THD *thd, key_map keys_to_use,
if (!keys_to_use.is_clear_all()) if (!keys_to_use.is_clear_all())
{ {
#ifndef EMBEDDED_LIBRARY // Avoid compiler warning #ifndef EMBEDDED_LIBRARY // Avoid compiler warning
char buff[STACK_BUFF_ALLOC]; uchar buff[STACK_BUFF_ALLOC];
#endif #endif
MEM_ROOT alloc; MEM_ROOT alloc;
SEL_TREE *tree= NULL; SEL_TREE *tree= NULL;

2
sql/sql_select.cc
View File

@ -2367,7 +2367,7 @@ static ha_rows get_quick_record_count(THD *thd, SQL_SELECT *select,
int error; int error;
DBUG_ENTER("get_quick_record_count"); DBUG_ENTER("get_quick_record_count");
#ifndef EMBEDDED_LIBRARY // Avoid compiler warning #ifndef EMBEDDED_LIBRARY // Avoid compiler warning
char buff[STACK_BUFF_ALLOC]; uchar buff[STACK_BUFF_ALLOC];
#endif #endif
if (check_stack_overrun(thd, STACK_MIN_SIZE, buff)) if (check_stack_overrun(thd, STACK_MIN_SIZE, buff))
DBUG_RETURN(0); // Fatal error flag is set DBUG_RETURN(0); // Fatal error flag is set