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09ba29e539
Added basic per-thread time zone functionality (based on public domain elsie-code). Now user can select current time zone (from the list of time zones described in system tables). All NOW-like functions honor this time zone, values of TIMESTAMP type are interpreted as values in this time zone, so now our TIMESTAMP type behaves similar to Oracle's TIMESTAMP WITH LOCAL TIME ZONE (or proper PostgresSQL type). WL#1266 "CONVERT_TZ() - basic time with time zone conversion function". Fixed problems described in Bug #2336 (Different number of warnings when inserting bad datetime as string or as number). This required reworking of datetime realted warning hadling (they now generated at Field object level not in conversion functions). Optimization: Now Field class descendants use table->in_use member instead of current_thd macro.
47 lines
1.8 KiB
Text
47 lines
1.8 KiB
Text
DROP TABLE IF EXISTS t1;
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show variables like "system_time_zone";
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Variable_name Value
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system_time_zone MET
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select @a:=FROM_UNIXTIME(1);
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@a:=FROM_UNIXTIME(1)
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1970-01-01 01:00:01
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select unix_timestamp(@a);
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unix_timestamp(@a)
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1
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CREATE TABLE t1 (ts int);
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INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 01:00'));
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INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 02:00'));
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INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 03:00'));
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INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 02:00'));
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INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 01:00'));
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INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 02:00'));
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INSERT INTO t1 (ts) VALUES (Unix_timestamp('2003-03-30 02:59:59'));
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INSERT INTO t1 (ts) VALUES (Unix_timestamp('2003-03-30 03:00:00'));
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INSERT INTO t1 (ts) VALUES (Unix_timestamp('2003-03-30 03:59:59'));
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INSERT INTO t1 (ts) VALUES (Unix_timestamp('2003-03-30 04:00:01'));
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SELECT ts,from_unixtime(ts) FROM t1;
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ts from_unixtime(ts)
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1035673200 2002-10-27 01:00:00
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1035680400 2002-10-27 02:00:00
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1035684000 2002-10-27 03:00:00
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1035680400 2002-10-27 02:00:00
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1035673200 2002-10-27 01:00:00
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1035680400 2002-10-27 02:00:00
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1048986000 2003-03-30 03:00:00
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1048986000 2003-03-30 03:00:00
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1048989599 2003-03-30 03:59:59
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1048989601 2003-03-30 04:00:01
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DROP TABLE t1;
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CREATE TABLE t1 (ts timestamp);
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INSERT INTO t1 (ts) VALUES ('2003-03-30 01:59:59'),
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('2003-03-30 02:59:59'),
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('2003-03-30 03:00:00');
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Warnings:
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Warning 1299 Invalid TIMESTAMP value in column 'ts' at row 2
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DROP TABLE t1;
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select unix_timestamp('1970-01-01 01:00:00'),
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unix_timestamp('1970-01-01 01:00:01'),
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unix_timestamp('2038-01-01 00:59:59'),
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unix_timestamp('2038-01-01 01:00:00');
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unix_timestamp('1970-01-01 01:00:00') unix_timestamp('1970-01-01 01:00:01') unix_timestamp('2038-01-01 00:59:59') unix_timestamp('2038-01-01 01:00:00')
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0 1 2145916799 0
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