mariadb/mysql-test/r/timezone2.result
kroki/tomash@moonlight.home c19affef54 BUG#9953: CONVERT_TZ requires mysql.time_zone_name to be locked
The problem was that some facilities (like CONVERT_TZ() function or
server HELP statement) may require implicit access to some tables in
'mysql' database.  This access was done by ordinary means of adding
such tables to the list of tables the query is going to open.
However, if we issued LOCK TABLES before that, we would get "table
was not locked" error trying to open such implicit tables.

The solution is to treat certain tables as MySQL system tables, like
we already do for mysql.proc.  Such tables may be opened for reading
at any moment regardless of any locks in effect.  The cost of this is
that system table may be locked for writing only together with other
system tables, it is disallowed to lock system tables for writing and
have any other lock on any other table.

After this patch the following tables are treated as MySQL system
tables:
  mysql.help_category
  mysql.help_keyword
  mysql.help_relation
  mysql.help_topic
  mysql.proc (it already was)
  mysql.time_zone
  mysql.time_zone_leap_second
  mysql.time_zone_name
  mysql.time_zone_transition
  mysql.time_zone_transition_type

These tables are now opened with open_system_tables_for_read() and
closed with close_system_tables(), or one table may be opened with
open_system_table_for_update() and closed with close_thread_tables()
(the latter is used for mysql.proc table, which is updated as part of
normal MySQL server operation).  These functions may be used when
some tables were opened and locked already.

NOTE: online update of time zone tables is not possible during
replication, because there's no time zone cache flush neither on LOCK
TABLES, nor on FLUSH TABLES, so the master may serve stale time zone
data from cache, while on slave updated data will be loaded from the
time zone tables.
2007-03-09 13:12:31 +03:00

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Text

drop table if exists t1, t2;
drop function if exists f1;
create table t1 (ts timestamp);
set time_zone='+00:00';
select unix_timestamp(utc_timestamp())-unix_timestamp(current_timestamp());
unix_timestamp(utc_timestamp())-unix_timestamp(current_timestamp())
0
insert into t1 (ts) values ('2003-03-30 02:30:00');
set time_zone='+10:30';
select unix_timestamp(utc_timestamp())-unix_timestamp(current_timestamp());
unix_timestamp(utc_timestamp())-unix_timestamp(current_timestamp())
-37800
insert into t1 (ts) values ('2003-03-30 02:30:00');
set time_zone='-10:00';
select unix_timestamp(utc_timestamp())-unix_timestamp(current_timestamp());
unix_timestamp(utc_timestamp())-unix_timestamp(current_timestamp())
36000
insert into t1 (ts) values ('2003-03-30 02:30:00');
select * from t1;
ts
2003-03-29 16:30:00
2003-03-29 06:00:00
2003-03-30 02:30:00
drop table t1;
select Name from mysql.time_zone_name where Name in
('UTC','Universal','MET','Europe/Moscow','leap/Europe/Moscow');
Name
Europe/Moscow
leap/Europe/Moscow
MET
Universal
UTC
create table t1 (i int, ts timestamp);
set time_zone='MET';
insert into t1 (i, ts) values
(unix_timestamp('2003-03-01 00:00:00'),'2003-03-01 00:00:00');
insert into t1 (i, ts) values
(unix_timestamp('2003-03-30 01:59:59'),'2003-03-30 01:59:59'),
(unix_timestamp('2003-03-30 02:30:00'),'2003-03-30 02:30:00'),
(unix_timestamp('2003-03-30 03:00:00'),'2003-03-30 03:00:00');
Warnings:
Warning 1299 Invalid TIMESTAMP value in column 'ts' at row 2
insert into t1 (i, ts) values
(unix_timestamp(20030330015959),20030330015959),
(unix_timestamp(20030330023000),20030330023000),
(unix_timestamp(20030330030000),20030330030000);
Warnings:
Warning 1299 Invalid TIMESTAMP value in column 'ts' at row 2
insert into t1 (i, ts) values
(unix_timestamp('2003-05-01 00:00:00'),'2003-05-01 00:00:00');
insert into t1 (i, ts) values
(unix_timestamp('2003-10-26 01:00:00'),'2003-10-26 01:00:00'),
(unix_timestamp('2003-10-26 02:00:00'),'2003-10-26 02:00:00'),
(unix_timestamp('2003-10-26 02:59:59'),'2003-10-26 02:59:59'),
(unix_timestamp('2003-10-26 04:00:00'),'2003-10-26 04:00:00'),
(unix_timestamp('2003-10-26 02:59:59'),'2003-10-26 02:59:59');
set time_zone='UTC';
select * from t1;
i ts
1046473200 2003-02-28 23:00:00
1048985999 2003-03-30 00:59:59
1048986000 2003-03-30 01:00:00
1048986000 2003-03-30 01:00:00
1048985999 2003-03-30 00:59:59
1048986000 2003-03-30 01:00:00
1048986000 2003-03-30 01:00:00
1051740000 2003-04-30 22:00:00
1067122800 2003-10-25 23:00:00
1067126400 2003-10-26 00:00:00
1067129999 2003-10-26 00:59:59
1067137200 2003-10-26 03:00:00
1067129999 2003-10-26 00:59:59
truncate table t1;
set time_zone='Europe/Moscow';
insert into t1 (i, ts) values
(unix_timestamp('2004-01-01 00:00:00'),'2004-01-01 00:00:00'),
(unix_timestamp('2004-03-28 02:30:00'),'2004-03-28 02:30:00'),
(unix_timestamp('2004-08-01 00:00:00'),'2003-08-01 00:00:00'),
(unix_timestamp('2004-10-31 02:30:00'),'2004-10-31 02:30:00');
Warnings:
Warning 1299 Invalid TIMESTAMP value in column 'ts' at row 2
select * from t1;
i ts
1072904400 2004-01-01 00:00:00
1080428400 2004-03-28 03:00:00
1091304000 2003-08-01 00:00:00
1099175400 2004-10-31 02:30:00
truncate table t1;
set time_zone='leap/Europe/Moscow';
insert into t1 (i, ts) values
(unix_timestamp('2004-01-01 00:00:00'),'2004-01-01 00:00:00'),
(unix_timestamp('2004-03-28 02:30:00'),'2004-03-28 02:30:00'),
(unix_timestamp('2004-08-01 00:00:00'),'2003-08-01 00:00:00'),
(unix_timestamp('2004-10-31 02:30:00'),'2004-10-31 02:30:00');
Warnings:
Warning 1299 Invalid TIMESTAMP value in column 'ts' at row 2
select * from t1;
i ts
1072904422 2004-01-01 00:00:00
1080428422 2004-03-28 03:00:00
1091304022 2003-08-01 00:00:00
1099175422 2004-10-31 02:30:00
truncate table t1;
insert into t1 (i, ts) values
(unix_timestamp('1981-07-01 03:59:59'),'1981-07-01 03:59:59'),
(unix_timestamp('1981-07-01 04:00:00'),'1981-07-01 04:00:00');
select * from t1;
i ts
362793608 1981-07-01 03:59:59
362793610 1981-07-01 04:00:00
select from_unixtime(362793609);
from_unixtime(362793609)
1981-07-01 03:59:60
drop table t1;
create table t1 (ts timestamp);
set time_zone='UTC';
insert into t1 values ('0000-00-00 00:00:00'),('1969-12-31 23:59:59'),
('1970-01-01 00:00:00'),('1970-01-01 00:00:01'),
('2038-01-19 03:14:07'),('2038-01-19 03:14:08');
Warnings:
Warning 1264 Out of range value for column 'ts' at row 2
Warning 1264 Out of range value for column 'ts' at row 3
Warning 1264 Out of range value for column 'ts' at row 6
select * from t1;
ts
0000-00-00 00:00:00
0000-00-00 00:00:00
0000-00-00 00:00:00
1970-01-01 00:00:01
2038-01-19 03:14:07
0000-00-00 00:00:00
truncate table t1;
set time_zone='MET';
insert into t1 values ('0000-00-00 00:00:00'),('1970-01-01 00:30:00'),
('1970-01-01 01:00:00'),('1970-01-01 01:00:01'),
('2038-01-19 04:14:07'),('2038-01-19 04:14:08');
Warnings:
Warning 1264 Out of range value for column 'ts' at row 2
Warning 1264 Out of range value for column 'ts' at row 3
Warning 1264 Out of range value for column 'ts' at row 6
select * from t1;
ts
0000-00-00 00:00:00
0000-00-00 00:00:00
0000-00-00 00:00:00
1970-01-01 01:00:01
2038-01-19 04:14:07
0000-00-00 00:00:00
truncate table t1;
set time_zone='+01:30';
insert into t1 values ('0000-00-00 00:00:00'),('1970-01-01 01:00:00'),
('1970-01-01 01:30:00'),('1970-01-01 01:30:01'),
('2038-01-19 04:44:07'),('2038-01-19 04:44:08');
Warnings:
Warning 1264 Out of range value for column 'ts' at row 2
Warning 1264 Out of range value for column 'ts' at row 3
Warning 1264 Out of range value for column 'ts' at row 6
select * from t1;
ts
0000-00-00 00:00:00
0000-00-00 00:00:00
0000-00-00 00:00:00
1970-01-01 01:30:01
2038-01-19 04:44:07
0000-00-00 00:00:00
drop table t1;
show variables like 'time_zone';
Variable_name Value
time_zone +01:30
set time_zone = default;
show variables like 'time_zone';
Variable_name Value
time_zone SYSTEM
set time_zone= '0';
ERROR HY000: Unknown or incorrect time zone: '0'
set time_zone= '0:0';
ERROR HY000: Unknown or incorrect time zone: '0:0'
set time_zone= '-20:00';
ERROR HY000: Unknown or incorrect time zone: '-20:00'
set time_zone= '+20:00';
ERROR HY000: Unknown or incorrect time zone: '+20:00'
set time_zone= 'Some/Unknown/Time/Zone';
ERROR HY000: Unknown or incorrect time zone: 'Some/Unknown/Time/Zone'
select convert_tz(now(),'UTC', 'Universal') = now();
convert_tz(now(),'UTC', 'Universal') = now()
1
select convert_tz(now(),'utc', 'UTC') = now();
convert_tz(now(),'utc', 'UTC') = now()
1
select convert_tz('1917-11-07 12:00:00', 'MET', 'UTC');
convert_tz('1917-11-07 12:00:00', 'MET', 'UTC')
1917-11-07 12:00:00
select convert_tz('1970-01-01 01:00:00', 'MET', 'UTC');
convert_tz('1970-01-01 01:00:00', 'MET', 'UTC')
1970-01-01 01:00:00
select convert_tz('1970-01-01 01:00:01', 'MET', 'UTC');
convert_tz('1970-01-01 01:00:01', 'MET', 'UTC')
1970-01-01 00:00:01
select convert_tz('2003-03-01 00:00:00', 'MET', 'UTC');
convert_tz('2003-03-01 00:00:00', 'MET', 'UTC')
2003-02-28 23:00:00
select convert_tz('2003-03-30 01:59:59', 'MET', 'UTC');
convert_tz('2003-03-30 01:59:59', 'MET', 'UTC')
2003-03-30 00:59:59
select convert_tz('2003-03-30 02:30:00', 'MET', 'UTC');
convert_tz('2003-03-30 02:30:00', 'MET', 'UTC')
2003-03-30 01:00:00
select convert_tz('2003-03-30 03:00:00', 'MET', 'UTC');
convert_tz('2003-03-30 03:00:00', 'MET', 'UTC')
2003-03-30 01:00:00
select convert_tz('2003-05-01 00:00:00', 'MET', 'UTC');
convert_tz('2003-05-01 00:00:00', 'MET', 'UTC')
2003-04-30 22:00:00
select convert_tz('2003-10-26 01:00:00', 'MET', 'UTC');
convert_tz('2003-10-26 01:00:00', 'MET', 'UTC')
2003-10-25 23:00:00
select convert_tz('2003-10-26 02:00:00', 'MET', 'UTC');
convert_tz('2003-10-26 02:00:00', 'MET', 'UTC')
2003-10-26 00:00:00
select convert_tz('2003-10-26 02:59:59', 'MET', 'UTC');
convert_tz('2003-10-26 02:59:59', 'MET', 'UTC')
2003-10-26 00:59:59
select convert_tz('2003-10-26 04:00:00', 'MET', 'UTC');
convert_tz('2003-10-26 04:00:00', 'MET', 'UTC')
2003-10-26 03:00:00
select convert_tz('2038-01-19 04:14:07', 'MET', 'UTC');
convert_tz('2038-01-19 04:14:07', 'MET', 'UTC')
2038-01-19 03:14:07
select convert_tz('2038-01-19 04:14:08', 'MET', 'UTC');
convert_tz('2038-01-19 04:14:08', 'MET', 'UTC')
2038-01-19 04:14:08
select convert_tz('2103-01-01 04:00:00', 'MET', 'UTC');
convert_tz('2103-01-01 04:00:00', 'MET', 'UTC')
2103-01-01 04:00:00
create table t1 (tz varchar(3));
insert into t1 (tz) values ('MET'), ('UTC');
select tz, convert_tz('2003-12-31 00:00:00',tz,'UTC'), convert_tz('2003-12-31 00:00:00','UTC',tz) from t1 order by tz;
tz convert_tz('2003-12-31 00:00:00',tz,'UTC') convert_tz('2003-12-31 00:00:00','UTC',tz)
MET 2003-12-30 23:00:00 2003-12-31 01:00:00
UTC 2003-12-31 00:00:00 2003-12-31 00:00:00
drop table t1;
select convert_tz('2003-12-31 04:00:00', NULL, 'UTC');
convert_tz('2003-12-31 04:00:00', NULL, 'UTC')
NULL
select convert_tz('2003-12-31 04:00:00', 'SomeNotExistingTimeZone', 'UTC');
convert_tz('2003-12-31 04:00:00', 'SomeNotExistingTimeZone', 'UTC')
NULL
select convert_tz('2003-12-31 04:00:00', 'MET', 'SomeNotExistingTimeZone');
convert_tz('2003-12-31 04:00:00', 'MET', 'SomeNotExistingTimeZone')
NULL
select convert_tz('2003-12-31 04:00:00', 'MET', NULL);
convert_tz('2003-12-31 04:00:00', 'MET', NULL)
NULL
select convert_tz( NULL, 'MET', 'UTC');
convert_tz( NULL, 'MET', 'UTC')
NULL
create table t1 (ts timestamp);
set timestamp=1000000000;
insert into t1 (ts) values (now());
select convert_tz(ts, @@time_zone, 'Japan') from t1;
convert_tz(ts, @@time_zone, 'Japan')
2001-09-09 10:46:40
drop table t1;
select convert_tz('2005-01-14 17:00:00', 'UTC', custTimeZone) from (select 'UTC' as custTimeZone) as tmp;
convert_tz('2005-01-14 17:00:00', 'UTC', custTimeZone)
2005-01-14 17:00:00
create table t1 select convert_tz(NULL, NULL, NULL);
select * from t1;
convert_tz(NULL, NULL, NULL)
NULL
drop table t1;
SET GLOBAL log_bin_trust_function_creators = 1;
create table t1 (ldt datetime, udt datetime);
create function f1(i datetime) returns datetime
return convert_tz(i, 'UTC', 'Europe/Moscow');
create trigger t1_bi before insert on t1 for each row
set new.udt:= convert_tz(new.ldt, 'Europe/Moscow', 'UTC');
insert into t1 (ldt) values ('2006-04-19 16:30:00');
select * from t1;
ldt udt
2006-04-19 16:30:00 2006-04-19 12:30:00
select ldt, f1(udt) as ldt2 from t1;
ldt ldt2
2006-04-19 16:30:00 2006-04-19 16:30:00
drop table t1;
drop function f1;
SET GLOBAL log_bin_trust_function_creators = 0;
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (t TIMESTAMP);
INSERT INTO t1 VALUES (NULL), (NULL);
LOCK TABLES t1 WRITE;
SELECT CONVERT_TZ(NOW(), 'UTC', 'Europe/Moscow') IS NULL;
CONVERT_TZ(NOW(), 'UTC', 'Europe/Moscow') IS NULL
0
UPDATE t1 SET t = CONVERT_TZ(t, 'UTC', 'Europe/Moscow');
UNLOCK TABLES;
DROP TABLE t1;
End of 5.1 tests