Fix for bug #20496: func_time.test failure

mysql-test/r/func_time.result

@@ -671,7 +671,14 @@ select f1 from t1 where makedate(2006,2) between date(f1) and date(f3);
 f1
 2006-01-02
 drop table t1;
-select now() - now() + 0, curtime() - curtime() + 0, 
+create table t1 select now() - now(), curtime() - curtime(), 
 sec_to_time(1) + 0, from_unixtime(1) + 0;
-now() - now() + 0	curtime() - curtime() + 0	sec_to_time(1) + 0	from_unixtime(1) + 0
-0.000000	0.000000	1.000000	19700101030001.000000
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `now() - now()` double(23,6) NOT NULL default '0.000000',
+  `curtime() - curtime()` double(23,6) NOT NULL default '0.000000',
+  `sec_to_time(1) + 0` double(23,6) default NULL,
+  `from_unixtime(1) + 0` double(23,6) default NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+drop table t1;

mysql-test/t/func_time.test

@@ -347,7 +347,9 @@ drop table t1;
 # Bug #16546
 # 
 
-select now() - now() + 0, curtime() - curtime() + 0, 
+create table t1 select now() - now(), curtime() - curtime(), 
                        sec_to_time(1) + 0, from_unixtime(1) + 0;
+show create table t1;
+drop table t1;
 
 # End of 4.1 tests