Fix bug #11760 Typo in Item_func_add_time::print() results in NULLs returned

by subtime() in view

Item_func_add_time::print() were printing arg[0] instead of arg[1] which
results in wrongly created view. Functions addtime() and subtime were
affected by this bug.

mysql-test/r/date_formats.result

@@ -434,7 +434,7 @@ explain extended select makedate(1997,1), addtime("31.12.97 11.59.59.999999 PM",
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	select makedate(1997,1) AS `makedate(1997,1)`,addtime(_latin1'31.12.97 11.59.59.999999 PM',_latin1'31.12.97 11.59.59.999999 PM') AS `addtime("31.12.97 11.59.59.999999 PM", "1 1.1.1.000002")`,subtime(_latin1'31.12.97 11.59.59.999999 PM',_latin1'31.12.97 11.59.59.999999 PM') AS `subtime("31.12.97 11.59.59.999999 PM", "1 1.1.1.000002")`,timediff(_latin1'01.01.97 11:59:59.000001 PM',_latin1'31.12.95 11:59:59.000002 PM') AS `timediff("01.01.97 11:59:59.000001 PM","31.12.95 11:59:59.000002 PM")`,cast(str_to_date(_latin1'15-01-2001 12:59:59',_latin1'%d-%m-%Y %H:%i:%S') as time) AS `cast(str_to_date("15-01-2001 12:59:59", "%d-%m-%Y %H:%i:%S") as TIME)`,maketime(23,11,12) AS `maketime(23,11,12)`,microsecond(_latin1'1997-12-31 23:59:59.000001') AS `microsecond("1997-12-31 23:59:59.000001")`
+Note	1003	select makedate(1997,1) AS `makedate(1997,1)`,addtime(_latin1'31.12.97 11.59.59.999999 PM',_latin1'1 1.1.1.000002') AS `addtime("31.12.97 11.59.59.999999 PM", "1 1.1.1.000002")`,subtime(_latin1'31.12.97 11.59.59.999999 PM',_latin1'1 1.1.1.000002') AS `subtime("31.12.97 11.59.59.999999 PM", "1 1.1.1.000002")`,timediff(_latin1'01.01.97 11:59:59.000001 PM',_latin1'31.12.95 11:59:59.000002 PM') AS `timediff("01.01.97 11:59:59.000001 PM","31.12.95 11:59:59.000002 PM")`,cast(str_to_date(_latin1'15-01-2001 12:59:59',_latin1'%d-%m-%Y %H:%i:%S') as time) AS `cast(str_to_date("15-01-2001 12:59:59", "%d-%m-%Y %H:%i:%S") as TIME)`,maketime(23,11,12) AS `maketime(23,11,12)`,microsecond(_latin1'1997-12-31 23:59:59.000001') AS `microsecond("1997-12-31 23:59:59.000001")`
 create table t1 (d date);
 insert into t1 values ('2004-07-14'),('2005-07-14');
 select date_format(d,"%d") from t1 order by 1;

mysql-test/r/view.result

@@ -2016,3 +2016,11 @@ CALL p1();
 DROP PROCEDURE p1;
 DROP VIEW v1;
 DROP TABLE t1;
+create table t1(f1 datetime);
+insert into t1 values('2005.01.01 12:0:0');
+create view v1 as select f1, subtime(f1, '1:1:1') as sb from t1;
+select * from v1;
+f1	sb
+2005-01-01 12:00:00	2005-01-01 10:58:59
+drop view v1;
+drop table t1;

mysql-test/t/view.test

@@ -1853,3 +1853,13 @@ CALL p1();
 DROP PROCEDURE p1;
 DROP VIEW v1;
 DROP TABLE t1;
+
+#
+# Bug #11760 Typo in Item_func_add_time::print() results in NULLs returned
+#             subtime() in view
+create table t1(f1 datetime);
+insert into t1 values('2005.01.01 12:0:0');
+create view v1 as select f1, subtime(f1, '1:1:1') as sb from t1;
+select * from v1;
+drop view v1;
+drop table t1; 

sql/item_timefunc.cc

@@ -2524,7 +2524,7 @@ void Item_func_add_time::print(String *str)
   }
   args[0]->print(str);
   str->append(',');
-  args[0]->print(str);
+  args[1]->print(str);
   str->append(')');
 }