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Merge rurik.mysql.com:/home/igor/mysql-4.1

Browse source 
into rurik.mysql.com:/home/igor/dev/mysql-4.1-0
This commit is contained in:
igor@rurik.mysql.com 2005-06-28 03:24:06 -07:00
commit 04e6f472dd
3 changed files with 21 additions and 2 deletions
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6
mysql-test/r/group_by.result
View file

@ -751,3 +751,9 @@ COUNT(DISTINCT(t1.id)) err_comment
1 NULL
1 a problem
DROP TABLE t1, t2;
CREATE TABLE t1 (n int);
INSERT INTO t1 VALUES (1);
SELECT n+1 AS n FROM t1 GROUP BY n;
n
2
DROP TABLE t1;

12
mysql-test/t/group_by.test
View file

@ -580,3 +580,15 @@ SELECT COUNT(DISTINCT(t1.id)), LEFT(err_comment, 256) AS err_comment
FROM t1 LEFT JOIN t2 ON t1.id=t2.id GROUP BY err_comment;
DROP TABLE t1, t2;
#
# Test for bug #11414: crash on Windows for a simple GROUP BY query
#
CREATE TABLE t1 (n int);
INSERT INTO t1 VALUES (1);
SELECT n+1 AS n FROM t1 GROUP BY n;
DROP TABLE t1;

5
sql/sql_select.cc
View file

@ -8725,7 +8725,7 @@ setup_copy_fields(THD *thd, TMP_TABLE_PARAM *param,
{
Item *pos;
List_iterator_fast<Item> li(all_fields);
Copy_field *copy;
Copy_field *copy= NULL;
res_selected_fields.empty();
res_all_fields.empty();
List_iterator_fast<Item> itr(res_all_fields);
@ -8733,7 +8733,8 @@ setup_copy_fields(THD *thd, TMP_TABLE_PARAM *param,
uint i, border= all_fields.elements - elements;
DBUG_ENTER("setup_copy_fields");
if (!(copy=param->copy_field= new Copy_field[param->field_count]))
if (param->field_count &&
!(copy=param->copy_field= new Copy_field[param->field_count]))
goto err2;
param->copy_funcs.empty();