config root man

#
# Test of SYSTEM time zone handling ( for my_system_gmt_sec()).
# This script must be run with TZ=MET

-- require r/have_met_timezone.require
disable_query_log;
select FROM_UNIXTIME(24*3600);
enable_query_log;

# Initialization
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings

# The following is because of daylight saving time
--replace_result MEST MET
show variables like "system_time_zone";

#
# Test unix timestamp
#
select @a:=FROM_UNIXTIME(1);
select unix_timestamp(@a);

#
# Test of some values, including some with daylight saving time
#

CREATE TABLE t1 (ts int);
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 01:00'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 02:00'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 03:00'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 02:00'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 01:00'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 02:00'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2003-03-30 02:59:59'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2003-03-30 03:00:00'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2003-03-30 03:59:59'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2003-03-30 04:00:01'));

SELECT ts,from_unixtime(ts) FROM t1;
DROP TABLE t1;


#
# Test of warning for spring time-gap values for system time zone
#
CREATE TABLE t1 (ts timestamp);
INSERT IGNORE INTO t1 (ts) VALUES ('2003-03-30 01:59:59'),
                                  ('2003-03-30 02:59:59'),
                           ('2003-03-30 03:00:00');
DROP TABLE t1;

#
# Test for fix for Bug#2523 Check that boundary dates are processed
# correctly.
#
select unix_timestamp('1970-01-01 01:00:00'), 
       unix_timestamp('1970-01-01 01:00:01'),
       unix_timestamp('2038-01-19 04:14:07'),
       unix_timestamp('2038-01-19 04:14:08');

# End of 4.1 tests

#
# Bug #27970159: DUPLICATE ENTRY FOR KEY '<GROUP_KEY>' ERROR
#

CREATE TABLE t1 (c1 TIMESTAMP);
SET TIME_ZONE = '+00:00';

INSERT INTO t1 VALUES('2019-10-27 00:47:42'), ('2019-10-27 00:47:42');
INSERT INTO t1 VALUES('2019-10-27 01:47:42'), ('2019-10-27 01:47:42');

SET TIME_ZONE = 'SYSTEM';

SELECT DISTINCT c1 FROM t1;

--error ER_GROUPING_ON_TIMESTAMP_IN_DST
SELECT COUNT(*) FROM t1 GROUP BY c1;

SET sql_mode='';
--error ER_GROUPING_ON_TIMESTAMP_IN_DST
SELECT COUNT(*) FROM t1 GROUP BY c1;
SET sql_mode=DEFAULT;

#Cleanup
DROP TABLE t1;