fixed pb problem with the fix for bug 30587

mysql-test/r/func_math.result

@@ -326,24 +326,24 @@ CREATE TABLE t1 (a timestamp, b varchar(20), c bit(1));
 INSERT INTO t1 VALUES('1998-09-23', 'str1', 1), ('2003-03-25', 'str2', 0);
 SELECT a DIV 900 y FROM t1 GROUP BY y;
 Catalog	Database	Table	Table_alias	Column	Column_alias	Type	Length	Max length	Is_null	Flags	Decimals	Charsetnr
-def				y	y	8	19	11	Y	32800	0	63
+def					y	8	19	11	Y	32800	0	63
 y
 22201025555
 22255916666
 SELECT DISTINCT a DIV 900 y FROM t1;
 Catalog	Database	Table	Table_alias	Column	Column_alias	Type	Length	Max length	Is_null	Flags	Decimals	Charsetnr
-def				y	y	8	19	11	Y	32800	0	63
+def					y	8	19	11	Y	32800	0	63
 y
 22201025555
 22255916666
 SELECT b DIV 900 y FROM t1 GROUP BY y;
 Catalog	Database	Table	Table_alias	Column	Column_alias	Type	Length	Max length	Is_null	Flags	Decimals	Charsetnr
-def				y	y	8	20	1	Y	32768	0	63
+def					y	8	20	1	Y	32768	0	63
 y
 0
 SELECT c DIV 900 y FROM t1 GROUP BY y;
 Catalog	Database	Table	Table_alias	Column	Column_alias	Type	Length	Max length	Is_null	Flags	Decimals	Charsetnr
-def				y	y	3	1	1	Y	32800	0	63
+def					y	3	1	1	Y	32800	0	63
 y
 0
 DROP TABLE t1;