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subselect.result:

Browse source 
Added test case for bug #11867.
  Fixed results for two existing test cases.
subselect.test:
  Added test case for bug #11867.
item_subselect.cc:
  Fixed bug #11867.
  Added missing code in Item_in_subselect::row_value_transformer
  that caused problems for queries with
  ROW(elems) IN (SELECT DISTINCT cols FROM ...).
This commit is contained in:
igor@rurik.mysql.com 2005-08-07 14:03:46 -07:00
parent d820a09a68
commit b2a189ab07
3 changed files with 41 additions and 6 deletions
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19
mysql-test/r/subselect.result
View file

@ -932,7 +932,7 @@ ROW(1, 1, 'a') IN (select a,b,c from t1)
1
select ROW(1, 2, 'a') IN (select a,b,c from t1);
ROW(1, 2, 'a') IN (select a,b,c from t1)
NULL
0
select ROW(1, 1, 'a') IN (select b,a,c from t1);
ROW(1, 1, 'a') IN (select b,a,c from t1)
1
@ -950,7 +950,7 @@ ROW(1, 1, 'a') IN (select a,b,c from t1 where c='b' or c='a')
1
select ROW(1, 2, 'a') IN (select a,b,c from t1 where c='b' or c='a');
ROW(1, 2, 'a') IN (select a,b,c from t1 where c='b' or c='a')
NULL
0
select ROW(1, 1, 'a') IN (select b,a,c from t1 where c='b' or c='a');
ROW(1, 1, 'a') IN (select b,a,c from t1 where c='b' or c='a')
1
@ -2727,3 +2727,18 @@ select * from (select max(fld) from t1) as foo;
max(fld)
1
drop table t1;
CREATE TABLE t1 (one int, two int, flag char(1));
CREATE TABLE t2 (one int, two int, flag char(1));
INSERT INTO t1 VALUES(1,2,'Y'),(2,3,'Y'),(3,4,'Y'),(5,6,'N'),(7,8,'N');
INSERT INTO t2 VALUES(1,2,'Y'),(2,3,'Y'),(3,4,'Y'),(5,6,'N'),(7,8,'N');
SELECT * FROM t1
WHERE ROW(one,two) IN (SELECT DISTINCT one,two FROM t2 WHERE flag = 'N');
one two flag
5 6 N
7 8 N
SELECT * FROM t1
WHERE ROW(one,two) IN (SELECT DISTINCT one,two FROM t1 WHERE flag = 'N');
one two flag
5 6 N
7 8 N
DROP TABLE t1,t2;

15
mysql-test/t/subselect.test
View file

@ -1754,5 +1754,20 @@ insert into t1 values ('1');
select * from (select max(fld) from t1) as foo;
drop table t1;
#
# Bug #11867: queries with ROW(,elems>) IN (SELECT DISTINCT <cols> FROM ...)
#
CREATE TABLE t1 (one int, two int, flag char(1));
CREATE TABLE t2 (one int, two int, flag char(1));
INSERT INTO t1 VALUES(1,2,'Y'),(2,3,'Y'),(3,4,'Y'),(5,6,'N'),(7,8,'N');
INSERT INTO t2 VALUES(1,2,'Y'),(2,3,'Y'),(3,4,'Y'),(5,6,'N'),(7,8,'N');
SELECT * FROM t1
WHERE ROW(one,two) IN (SELECT DISTINCT one,two FROM t2 WHERE flag = 'N');
SELECT * FROM t1
WHERE ROW(one,two) IN (SELECT DISTINCT one,two FROM t1 WHERE flag = 'N');
DROP TABLE t1,t2;
# End of 4.1 tests

13
sql/item_subselect.cc
View file

@ -951,14 +951,19 @@ Item_in_subselect::row_value_transformer(JOIN *join)
List_iterator_fast<Item> li(select_lex->item_list);
for (uint i= 0; i < n; i++)
{
Item *func;
DBUG_ASSERT(left_expr->fixed && select_lex->ref_pointer_array[i]->fixed);
if (select_lex->ref_pointer_array[i]->
check_cols(left_expr->el(i)->cols()))
DBUG_RETURN(RES_ERROR);
Item *func= new Item_ref_null_helper(this,
select_lex->ref_pointer_array+i,
(char *) "<no matter>",
(char *) "<list ref>");
if (join->having || select_lex->with_sum_func ||
select_lex->group_list.elements)
func= new Item_ref_null_helper(this,
select_lex->ref_pointer_array+i,
(char *) "<no matter>",
(char *) "<list ref>");
else
func= li++;
func=
eq_creator.create(new Item_direct_ref((*optimizer->get_cache())->
addr(i),