add localtests

localtests/tz-ts-datetime/create.sql

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+drop table if exists gh_ost_test;
+create table gh_ost_test (
+                             id int auto_increment,
+                             i int not null,
+                             ts0 timestamp default current_timestamp,
+                             ts1 timestamp default current_timestamp,
+                             dt2 datetime,
+                             t   timestamp default current_timestamp,
+                             updated tinyint unsigned default 0,
+                             primary key(id),
+                             key i_idx(i)
+) auto_increment=1;
+
+drop event if exists gh_ost_test;
+delimiter ;;
+create event gh_ost_test
+  on schedule every 1 second
+  starts current_timestamp
+  ends current_timestamp + interval 60 second
+  on completion not preserve
+  enable
+  do
+begin
+insert into gh_ost_test values (null, 7, null, now(), now(), '2010-10-20 10:20:30', 0);
+
+insert into gh_ost_test values (null, 11, null, now(), now(), '2010-10-20 10:20:30', 0);
+update gh_ost_test set ts2=now() + interval 1 minute, updated = 1 where i = 11 order by id desc limit 1;
+
+set session time_zone='system';
+insert into gh_ost_test values (null, 13, null, now(), now(), '2010-10-20 10:20:30', 0);
+update gh_ost_test set ts2=now() + interval 1 minute, updated = 1 where i = 13 order by id desc limit 1;
+
+set session time_zone='+00:00';
+insert into gh_ost_test values (null, 17, null, now(), now(), '2010-10-20 10:20:30', 0);
+update gh_ost_test set ts2=now() + interval 1 minute, updated = 1 where i = 17 order by id desc limit 1;
+
+set session time_zone='-03:00';
+insert into gh_ost_test values (null, 19, null, now(), now(), '2010-10-20 10:20:30', 0);
+update gh_ost_test set ts2=now() + interval 1 minute, updated = 1 where i = 19 order by id desc limit 1;
+
+set session time_zone='+05:00';
+insert into gh_ost_test values (null, 23, null, now(), now(), '2010-10-20 10:20:30', 0);
+update gh_ost_test set ts2=now() + interval 1 minute, updated = 1 where i = 23 order by id desc limit 1;
+end ;;

localtests/tz-ts-datetime/extra_args

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+--alter="change column t t datetime not null"

localtests/tz-ts-datetime/ignore_versions

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+(5.5)