MariaRocks port: make datetime-aware tests work in any timezone

This fixes
- rocksdb.col_opt_not_null
- rocksdb.col_opt_null
- rocksdb.type_date_time

storage/rocksdb/mysql-test/rocksdb/r/col_opt_not_null.result

@@ -912,7 +912,11 @@ DROP TABLE t1;
 ########################
 # date and time columns
 ########################
+set @col_opt_not_nullsave_time_zone=@@time_zone;
+set time_zone='UTC';
 DROP TABLE IF EXISTS t1;
+set @save_time_zone=@@time_zone;
+set time_zone='UTC';
 CREATE TABLE t1 (
 d DATE NOT NULL,
 dt DATETIME NOT NULL,
@@ -964,6 +968,7 @@ d	dt	ts	t	y	y4	y2
 0000-00-00	0000-00-00 00:00:00	0000-00-00 00:00:00	00:00:00	2000	2000	00
 2012-04-09	2012-04-09 05:27:00	2012-04-09 05:27:00	05:27:00	2012	2012	12
 0000-00-00	0000-00-00 00:00:00	0000-00-00 00:00:00	-838:59:59	0000	0000	00
+set time_zone=@save_time_zone;
 DROP TABLE t1;
 SET TIMESTAMP=UNIX_TIMESTAMP('2013-12-12 12:12:12');
 DROP TABLE IF EXISTS t1;
@@ -1201,6 +1206,7 @@ pk	HEX(c)
 1	C
 2	C
 DROP TABLE t1;
+set time_zone= @col_opt_not_nullsave_time_zone;
 ########################
 # ENUM columns
 ########################

storage/rocksdb/mysql-test/rocksdb/r/col_opt_null.result

@@ -802,7 +802,11 @@ DROP TABLE t1;
 ########################
 # date and time columns
 ########################
+set @col_opt_nullsave_time_zone=@@time_zone;
+set time_zone='UTC';
 DROP TABLE IF EXISTS t1;
+set @save_time_zone=@@time_zone;
+set time_zone='UTC';
 CREATE TABLE t1 (
 d DATE NULL,
 dt DATETIME NULL,
@@ -854,6 +858,7 @@ d	dt	ts	t	y	y4	y2
 0000-00-00	0000-00-00 00:00:00	0000-00-00 00:00:00	00:00:00	2000	2000	00
 2012-04-09	2012-04-09 05:27:00	2012-04-09 05:27:00	05:27:00	2012	2012	12
 0000-00-00	0000-00-00 00:00:00	0000-00-00 00:00:00	-838:59:59	0000	0000	00
+set time_zone=@save_time_zone;
 DROP TABLE t1;
 DROP TABLE IF EXISTS t1;
 CREATE TABLE t1 (
@@ -1021,6 +1026,7 @@ pk	HEX(c2)
 2	C
 3	C
 DROP TABLE t1;
+set time_zone=@col_opt_nullsave_time_zone;
 ########################
 # ENUM columns
 ########################

storage/rocksdb/mysql-test/rocksdb/r/type_date_time.result

 DROP TABLE IF EXISTS t1;
+set @save_time_zone=@@time_zone;
+set time_zone='UTC';
 CREATE TABLE t1 (
 d DATE ,
 dt DATETIME ,
@@ -50,4 +52,5 @@ d	dt	ts	t	y	y4	y2
 0000-00-00	0000-00-00 00:00:00	0000-00-00 00:00:00	00:00:00	2000	2000	00
 2012-04-09	2012-04-09 05:27:00	2012-04-09 05:27:00	05:27:00	2012	2012	12
 0000-00-00	0000-00-00 00:00:00	0000-00-00 00:00:00	-838:59:59	0000	0000	00
+set time_zone=@save_time_zone;
 DROP TABLE t1;

storage/rocksdb/mysql-test/rocksdb/t/col_opt_not_null.test

@@ -92,6 +92,9 @@ let $extra_col_opts = NOT NULL;
 --echo # date and time columns
 --echo ########################
 
+set @col_opt_not_nullsave_time_zone=@@time_zone;
+set time_zone='UTC';
+
 --source type_date_time.inc
 
 SET TIMESTAMP=UNIX_TIMESTAMP('2013-12-12 12:12:12');
@@ -123,6 +126,8 @@ SET TIMESTAMP=UNIX_TIMESTAMP('2013-12-12 12:12:12');
 --let $col_default = '12'
 --source col_not_null.inc
 
+set time_zone= @col_opt_not_nullsave_time_zone;
+
 --echo ########################
 --echo # ENUM columns
 --echo ########################

storage/rocksdb/mysql-test/rocksdb/t/col_opt_null.test

@@ -88,6 +88,9 @@ let $extra_col_opts = NULL;
 --echo # date and time columns
 --echo ########################
 
+set @col_opt_nullsave_time_zone=@@time_zone;
+set time_zone='UTC';
+
 --source type_date_time.inc
 
 --let $col_type = DATE
@@ -114,6 +117,7 @@ let $extra_col_opts = NULL;
 --let $col_default = '12'
 --source col_null.inc
 
+set time_zone=@col_opt_nullsave_time_zone;
 
 --echo ########################
 --echo # ENUM columns

storage/rocksdb/mysql-test/rocksdb/t/type_date_time.inc

@@ -6,7 +6,8 @@
 --disable_warnings
 DROP TABLE IF EXISTS t1;
 --enable_warnings
-
+set @save_time_zone=@@time_zone;
+set time_zone='UTC';
 eval CREATE TABLE t1 (
   d DATE $extra_col_opts,
   dt DATETIME $extra_col_opts,
@@ -39,6 +40,7 @@ INSERT INTO t1 (d,dt,ts,t,y,y4,y2,pk) VALUES
 ('999-13-32', '999-11-31 00:00:00', '0', '-839:00:00', '1900', '1900', '-1','2012-12-12 12:12:16');
 
 SELECT d,dt,ts,t,y,y4,y2 FROM t1;
+set time_zone=@save_time_zone;
 
 DROP TABLE t1;