Commit c74c8195 authored by unknown's avatar unknown
Browse files

Bug #16255: Subquery in WHERE (the cset by Georgi Kodinov) 

 Must not use Item_direct_ref in HAVING because it points to
 the new value (witch is not yet calculated for the first row).


mysql-test/r/subselect.result:
  Bug #16255: Subquery in where
   - test case
mysql-test/t/subselect.test:
  Bug #16255: Subquery in where
   - test case
sql/item_subselect.cc:
  Bug #16255: Subquery in where
   Must not use Item_direct_ref in HAVING because it points to
   the new value (witch is not yet calculated for the first row).
parent 9907e970

mysql-test/r/subselect.result

+11 −0
Original line number Diff line number Diff line
@@ -2895,3 +2895,14 @@ select * from t1 where NOT(s1 = ALL (select s1/s1 from t1)); 
s1

2

drop table t1;

CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a,b));

INSERT INTO t1 VALUES(26, 1), (48, 2);

SELECT * FROM t1 r WHERE (r.a,r.b) IN (SELECT a,MAX(b) FROM t1 GROUP BY a);

a	b

26	1

48	2

SELECT * FROM t1 r WHERE (r.a,r.b) IN (SELECT a + 0,MAX(b) FROM t1 GROUP BY a);

a	b

26	1

48	2

DROP TABLE t1;

mysql-test/t/subselect.test

+12 −0
Original line number Diff line number Diff line
@@ -1861,4 +1861,16 @@ select * from t1 where NOT(s1+1 = ANY (select s1 from t1)); 
select * from t1 where (s1 = ALL (select s1/s1 from t1));

select * from t1 where NOT(s1 = ALL (select s1/s1 from t1));

drop table t1;



#

# Bug #16255: Subquery in where

#

CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a,b));



INSERT INTO t1 VALUES(26, 1), (48, 2);



SELECT * FROM t1 r WHERE (r.a,r.b) IN (SELECT a,MAX(b) FROM t1 GROUP BY a);

SELECT * FROM t1 r WHERE (r.a,r.b) IN (SELECT a + 0,MAX(b) FROM t1 GROUP BY a);



DROP TABLE t1;

# End of 4.1 tests

sql/item_subselect.cc

+5 −5
Original line number Diff line number Diff line
@@ -976,18 +976,18 @@ Item_in_subselect::row_value_transformer(JOIN *join) 
        DBUG_RETURN(RES_ERROR);

      Item *item_eq=

        new Item_func_eq(new

                         Item_direct_ref((*optimizer->get_cache())->

                         Item_ref((*optimizer->get_cache())->

                                         addr(i),

                                         (char *)"<no matter>",

                                         (char *)in_left_expr_name),

                         new

                         Item_direct_ref(select_lex->ref_pointer_array + i,

                         Item_ref(select_lex->ref_pointer_array + i,

                                         (char *)"<no matter>",

                                         (char *)"<list ref>")

                        );

      Item *item_isnull=

        new Item_func_isnull(new

                             Item_direct_ref( select_lex->

                             Item_ref( select_lex->

                                              ref_pointer_array+i,

                                              (char *)"<no matter>",

                                              (char *)"<list ref>")
@@ -1000,7 +1000,7 @@ Item_in_subselect::row_value_transformer(JOIN *join) 
                  new

                  Item_is_not_null_test(this,

                                        new

                                        Item_direct_ref(select_lex->

                                        Item_ref(select_lex->

                                                        ref_pointer_array + i,

                                                        (char *)"<no matter>",

                                                        (char *)"<list ref>")
@@ -1057,7 +1057,7 @@ Item_in_subselect::row_value_transformer(JOIN *join) 
                    new

                    Item_is_not_null_test(this,

                                          new

                                          Item_direct_ref(select_lex->

                                          Item_ref(select_lex->

                                                          ref_pointer_array + i,

                                                          (char *)"<no matter>",

                                                          (char *)"<list ref>")