Commit ed54d531 authored by unknown's avatar unknown

Merge gkodinov@bk-internal.mysql.com:/home/bk/mysql-5.0-opt

into  magare.gmz:/home/kgeorge/mysql/autopush/B26537-5.0-opt
parents 93b3026e 92dcffa0
......@@ -1940,4 +1940,10 @@ abcxx
select lpad('abc', cast(5 as unsigned integer), 'x');
lpad('abc', cast(5 as unsigned integer), 'x')
xxabc
SELECT UNHEX('G');
UNHEX('G')
NULL
SELECT UNHEX('G') IS NULL;
UNHEX('G') IS NULL
1
End of 5.0 tests
......@@ -1008,4 +1008,10 @@ select repeat('a', cast(2 as unsigned int));
select rpad('abc', cast(5 as unsigned integer), 'x');
select lpad('abc', cast(5 as unsigned integer), 'x');
#
# Bug #26537: UNHEX() IS NULL comparison fails
#
SELECT UNHEX('G');
SELECT UNHEX('G') IS NULL;
--echo End of 5.0 tests
......@@ -605,7 +605,11 @@ class Item_func_unhex :public Item_str_func
{
String tmp_value;
public:
Item_func_unhex(Item *a) :Item_str_func(a) {}
Item_func_unhex(Item *a) :Item_str_func(a)
{
/* there can be bad hex strings */
maybe_null= 1;
}
const char *func_name() const { return "unhex"; }
String *val_str(String *);
void fix_length_and_dec()
......
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