temporal-related changes. don't apply sql_mode flags on the lower level (str_to_datetime),

do it on the upper level, in items that return temporal values.

update tests results to match 5.6 better and to fix old bugs.

mysql-test/r/dyncol.result

@@ -1036,9 +1036,7 @@ Warnings:
 Warning	1292	Truncated incorrect time value: '2011-13-01 8:46:06.23434'
 select column_get(column_create(1, "2011-02-30 8:46:06.23434" AS CHAR), 1 as time);
 column_get(column_create(1, "2011-02-30 8:46:06.23434" AS CHAR), 1 as time)
-NULL
-Warnings:
-Warning	1292	Truncated incorrect time value: '2011-02-30 8:46:06.23434'
+08:46:06
 select column_get(column_create(1, "2001-02-03"), 1 as time);
 column_get(column_create(1, "2001-02-03"), 1 as time)
 00:20:01

mysql-test/r/func_sapdb.result

@@ -62,7 +62,9 @@ datediff("1997-11-30 23:59:59.000001","1997-12-31")
 SET @@SQL_MODE="ALLOW_INVALID_DATES";
 select datediff("1997-11-31 23:59:59.000001","1997-12-31");
 datediff("1997-11-31 23:59:59.000001","1997-12-31")
--30
+NULL
+Warnings:
+Warning	1292	Incorrect datetime value: '1997-11-31 23:59:59.000001'
 SET @@SQL_MODE="";
 select datediff("1997-11-31 23:59:59.000001","1997-12-31");
 datediff("1997-11-31 23:59:59.000001","1997-12-31")

mysql-test/r/select.result

@@ -4175,22 +4175,24 @@ str_to_date('2007-10-00','%Y-%m-%d') between '2007/09/01 00:00:00'
 set SQL_MODE=TRADITIONAL;
 select str_to_date('2007-10-00 12:34','%Y-%m-%d %H:%i') = '2007-10-00 12:34';
 str_to_date('2007-10-00 12:34','%Y-%m-%d %H:%i') = '2007-10-00 12:34'
-0
+NULL
 Warnings:
-Warning	1292	Incorrect datetime value: '2007-10-00 12:34'
+Warning	1411	Incorrect datetime value: '2007-10-00 12:34' for function str_to_date
 select str_to_date('2007-10-01 12:34','%Y-%m-%d %H:%i') = '2007-10-00 12:34';
 str_to_date('2007-10-01 12:34','%Y-%m-%d %H:%i') = '2007-10-00 12:34'
 0
-Warnings:
-Warning	1292	Incorrect datetime value: '2007-10-00 12:34'
 select str_to_date('2007-10-00 12:34','%Y-%m-%d %H:%i') = '2007-10-01 12:34';
 str_to_date('2007-10-00 12:34','%Y-%m-%d %H:%i') = '2007-10-01 12:34'
-0
+NULL
+Warnings:
+Warning	1411	Incorrect datetime value: '2007-10-00 12:34' for function str_to_date
 select str_to_date('2007-10-00','%Y-%m-%d') between '2007/09/01'
                                                 and '2007/10/20';
 str_to_date('2007-10-00','%Y-%m-%d') between '2007/09/01'
                                                 and '2007/10/20'
-1
+NULL
+Warnings:
+Warning	1411	Incorrect datetime value: '2007-10-00' for function str_to_date
 set SQL_MODE=DEFAULT;
 select str_to_date('2007-10-00','%Y-%m-%d') between '' and '2007/10/20';
 str_to_date('2007-10-00','%Y-%m-%d') between '' and '2007/10/20'

mysql-test/r/select_jcl6.result

@@ -4186,22 +4186,24 @@ str_to_date('2007-10-00','%Y-%m-%d') between '2007/09/01 00:00:00'
 set SQL_MODE=TRADITIONAL;
 select str_to_date('2007-10-00 12:34','%Y-%m-%d %H:%i') = '2007-10-00 12:34';
 str_to_date('2007-10-00 12:34','%Y-%m-%d %H:%i') = '2007-10-00 12:34'
-0
+NULL
 Warnings:
-Warning	1292	Incorrect datetime value: '2007-10-00 12:34'
+Warning	1411	Incorrect datetime value: '2007-10-00 12:34' for function str_to_date
 select str_to_date('2007-10-01 12:34','%Y-%m-%d %H:%i') = '2007-10-00 12:34';
 str_to_date('2007-10-01 12:34','%Y-%m-%d %H:%i') = '2007-10-00 12:34'
 0
-Warnings:
-Warning	1292	Incorrect datetime value: '2007-10-00 12:34'
 select str_to_date('2007-10-00 12:34','%Y-%m-%d %H:%i') = '2007-10-01 12:34';
 str_to_date('2007-10-00 12:34','%Y-%m-%d %H:%i') = '2007-10-01 12:34'
-0
+NULL
+Warnings:
+Warning	1411	Incorrect datetime value: '2007-10-00 12:34' for function str_to_date
 select str_to_date('2007-10-00','%Y-%m-%d') between '2007/09/01'
                                                 and '2007/10/20';
 str_to_date('2007-10-00','%Y-%m-%d') between '2007/09/01'
                                                 and '2007/10/20'
-1
+NULL
+Warnings:
+Warning	1411	Incorrect datetime value: '2007-10-00' for function str_to_date
 set SQL_MODE=DEFAULT;
 select str_to_date('2007-10-00','%Y-%m-%d') between '' and '2007/10/20';
 str_to_date('2007-10-00','%Y-%m-%d') between '' and '2007/10/20'

mysql-test/r/select_pkeycache.result

@@ -4175,22 +4175,24 @@ str_to_date('2007-10-00','%Y-%m-%d') between '2007/09/01 00:00:00'
 set SQL_MODE=TRADITIONAL;
 select str_to_date('2007-10-00 12:34','%Y-%m-%d %H:%i') = '2007-10-00 12:34';
 str_to_date('2007-10-00 12:34','%Y-%m-%d %H:%i') = '2007-10-00 12:34'
-0
+NULL
 Warnings:
-Warning	1292	Incorrect datetime value: '2007-10-00 12:34'
+Warning	1411	Incorrect datetime value: '2007-10-00 12:34' for function str_to_date
 select str_to_date('2007-10-01 12:34','%Y-%m-%d %H:%i') = '2007-10-00 12:34';
 str_to_date('2007-10-01 12:34','%Y-%m-%d %H:%i') = '2007-10-00 12:34'
 0
-Warnings:
-Warning	1292	Incorrect datetime value: '2007-10-00 12:34'
 select str_to_date('2007-10-00 12:34','%Y-%m-%d %H:%i') = '2007-10-01 12:34';
 str_to_date('2007-10-00 12:34','%Y-%m-%d %H:%i') = '2007-10-01 12:34'
-0
+NULL
+Warnings:
+Warning	1411	Incorrect datetime value: '2007-10-00 12:34' for function str_to_date
 select str_to_date('2007-10-00','%Y-%m-%d') between '2007/09/01'
                                                 and '2007/10/20';
 str_to_date('2007-10-00','%Y-%m-%d') between '2007/09/01'
                                                 and '2007/10/20'
-1
+NULL
+Warnings:
+Warning	1411	Incorrect datetime value: '2007-10-00' for function str_to_date
 set SQL_MODE=DEFAULT;
 select str_to_date('2007-10-00','%Y-%m-%d') between '' and '2007/10/20';
 str_to_date('2007-10-00','%Y-%m-%d') between '' and '2007/10/20'