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Merge bk-internal.mysql.com:/home/bk/mysql-4.1

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into mysql.com:/home/my/mysql-4.1
This commit is contained in:
monty@mysql.com 2005-01-15 12:00:56 +02:00
commit f34bc883ab
3 changed files with 15 additions and 2 deletions
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5
mysql-test/r/func_gconcat.result
View File

@ -457,3 +457,8 @@ group_concat(distinct b order by b)
Warnings:
Warning 1260 2 line(s) were cut by GROUP_CONCAT()
drop table t1;
CREATE TABLE t1 (id int);
SELECT GROUP_CONCAT(id) AS gc FROM t1 HAVING gc IS NULL;
gc
NULL
DROP TABLE t1;

7
mysql-test/t/func_gconcat.test
View File

@ -277,3 +277,10 @@ select group_concat(b order by b) from t1 group by a;
select group_concat(distinct b order by b) from t1 group by a;
drop table t1;
#
# bug #7769: group_concat returning null is checked in having
#
CREATE TABLE t1 (id int);
SELECT GROUP_CONCAT(id) AS gc FROM t1 HAVING gc IS NULL;
DROP TABLE t1;

5
sql/item_sum.h
View File

@ -739,9 +739,10 @@ class Item_func_group_concat : public Item_sum
String *res;
char *end_ptr;
int error;
res= val_str(&str_value);
if (!(res= val_str(&str_value)))
return (longlong) 0;
end_ptr= (char*) res->ptr()+ res->length();
return res ? my_strtoll10(res->ptr(), &end_ptr, &error) : (longlong) 0;
return my_strtoll10(res->ptr(), &end_ptr, &error);
}
String* val_str(String* str);
Item *copy_or_same(THD* thd);