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postgresql/src/test/regress/sql/timestamptz.sql
Tom Lane 26ae3aa80e Remove redundant function calls in timestamp[tz]_part(). 
The DTK_DOW/DTK_ISODOW and DTK_DOY switch cases in timestamp_part() and
timestamptz_part() contained calls of timestamp2tm() that were fully
redundant with the ones done just above the switch.  This evidently crept
in during commit 258ee1b63, which relocated that code from another place
where the calls were indeed needed.  Just delete the redundant calls.

I (tgl) noted that our test coverage of these functions left quite a
bit to be desired, so extend timestamp.sql and timestamptz.sql to
cover all the branches.

Back-patch to all supported branches, as the previous commit was.
There's no real issue here other than some wasted cycles in some
not-too-heavily-used code paths, but the test coverage seems valuable.

Report and patch by Li Japin; test case adjustments by me.

Discussion: https://postgr.es/m/SG2PR06MB37762CAE45DB0F6CA7001EA9B6550@SG2PR06MB3776.apcprd06.prod.outlook.com
2019-12-12 12:12:49 -05:00

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--
-- TIMESTAMPTZ
--
CREATE TABLE TIMESTAMPTZ_TBL (d1 timestamp(2) with time zone);
-- Test shorthand input values
-- We can't just "select" the results since they aren't constants; test for
-- equality instead. We can do that by running the test inside a transaction
-- block, within which the value of 'now' shouldn't change. We also check
-- that 'now' *does* change over a reasonable interval such as 100 msec.
-- NOTE: it is possible for this part of the test to fail if the transaction
-- block is entered exactly at local midnight; then 'now' and 'today' have
-- the same values and the counts will come out different.
INSERT INTO TIMESTAMPTZ_TBL VALUES ('now');
SELECT pg_sleep(0.1);
BEGIN;
INSERT INTO TIMESTAMPTZ_TBL VALUES ('now');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('today');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('yesterday');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('tomorrow');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('tomorrow EST');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('tomorrow zulu');
SELECT count(*) AS One FROM TIMESTAMPTZ_TBL WHERE d1 = timestamp with time zone 'today';
SELECT count(*) AS One FROM TIMESTAMPTZ_TBL WHERE d1 = timestamp with time zone 'tomorrow';
SELECT count(*) AS One FROM TIMESTAMPTZ_TBL WHERE d1 = timestamp with time zone 'yesterday';
SELECT count(*) AS One FROM TIMESTAMPTZ_TBL WHERE d1 = timestamp(2) with time zone 'now';
COMMIT;
DELETE FROM TIMESTAMPTZ_TBL;
-- verify uniform transaction time within transaction block
BEGIN;
INSERT INTO TIMESTAMPTZ_TBL VALUES ('now');
SELECT pg_sleep(0.1);
INSERT INTO TIMESTAMPTZ_TBL VALUES ('now');
SELECT pg_sleep(0.1);
SELECT count(*) AS two FROM TIMESTAMPTZ_TBL WHERE d1 = timestamp(2) with time zone 'now';
COMMIT;
DELETE FROM TIMESTAMPTZ_TBL;
-- Special values
INSERT INTO TIMESTAMPTZ_TBL VALUES ('-infinity');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('infinity');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('epoch');
-- Postgres v6.0 standard output format
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Mon Feb 10 17:32:01 1997 PST');
-- Variations on Postgres v6.1 standard output format
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Mon Feb 10 17:32:01.000001 1997 PST');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Mon Feb 10 17:32:01.999999 1997 PST');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Mon Feb 10 17:32:01.4 1997 PST');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Mon Feb 10 17:32:01.5 1997 PST');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Mon Feb 10 17:32:01.6 1997 PST');
-- ISO 8601 format
INSERT INTO TIMESTAMPTZ_TBL VALUES ('1997-01-02');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('1997-01-02 03:04:05');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('1997-02-10 17:32:01-08');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('1997-02-10 17:32:01-0800');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('1997-02-10 17:32:01 -08:00');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('19970210 173201 -0800');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('1997-06-10 17:32:01 -07:00');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2001-09-22T18:19:20');
-- POSIX format (note that the timezone abbrev is just decoration here)
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 08:14:01 GMT+8');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 13:14:02 GMT-1');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 12:14:03 GMT-2');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 03:14:04 PST+8');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 02:14:05 MST+7:00');
-- Variations for acceptable input formats
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 10 17:32:01 1997 -0800');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 10 17:32:01 1997');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 10 5:32PM 1997');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('1997/02/10 17:32:01-0800');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('1997-02-10 17:32:01 PST');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb-10-1997 17:32:01 PST');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('02-10-1997 17:32:01 PST');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('19970210 173201 PST');
set datestyle to ymd;
INSERT INTO TIMESTAMPTZ_TBL VALUES ('97FEB10 5:32:01PM UTC');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('97/02/10 17:32:01 UTC');
reset datestyle;
INSERT INTO TIMESTAMPTZ_TBL VALUES ('1997.041 17:32:01 UTC');
-- timestamps at different timezones
INSERT INTO TIMESTAMPTZ_TBL VALUES ('19970210 173201 America/New_York');
SELECT '19970210 173201' AT TIME ZONE 'America/New_York';
INSERT INTO TIMESTAMPTZ_TBL VALUES ('19970710 173201 America/New_York');
SELECT '19970710 173201' AT TIME ZONE 'America/New_York';
INSERT INTO TIMESTAMPTZ_TBL VALUES ('19970710 173201 America/Does_not_exist');
SELECT '19970710 173201' AT TIME ZONE 'America/Does_not_exist';
-- Daylight saving time for timestamps beyond 32-bit time_t range.
SELECT '20500710 173201 Europe/Helsinki'::timestamptz; -- DST
SELECT '20500110 173201 Europe/Helsinki'::timestamptz; -- non-DST
SELECT '205000-07-10 17:32:01 Europe/Helsinki'::timestamptz; -- DST
SELECT '205000-01-10 17:32:01 Europe/Helsinki'::timestamptz; -- non-DST
-- Check date conversion and date arithmetic
INSERT INTO TIMESTAMPTZ_TBL VALUES ('1997-06-10 18:32:01 PDT');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 10 17:32:01 1997');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 11 17:32:01 1997');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 12 17:32:01 1997');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 13 17:32:01 1997');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 14 17:32:01 1997');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 15 17:32:01 1997');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 16 17:32:01 1997');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 16 17:32:01 0097 BC');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 16 17:32:01 0097');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 16 17:32:01 0597');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 16 17:32:01 1097');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 16 17:32:01 1697');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 16 17:32:01 1797');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 16 17:32:01 1897');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 16 17:32:01 1997');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 16 17:32:01 2097');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 28 17:32:01 1996');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 29 17:32:01 1996');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Mar 01 17:32:01 1996');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Dec 30 17:32:01 1996');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Dec 31 17:32:01 1996');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Jan 01 17:32:01 1997');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 28 17:32:01 1997');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 29 17:32:01 1997');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Mar 01 17:32:01 1997');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Dec 30 17:32:01 1997');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Dec 31 17:32:01 1997');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Dec 31 17:32:01 1999');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Jan 01 17:32:01 2000');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Dec 31 17:32:01 2000');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Jan 01 17:32:01 2001');
-- Currently unsupported syntax and ranges
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 16 17:32:01 -0097');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 16 17:32:01 5097 BC');
-- Alternative field order that we've historically supported (sort of)
-- with regular and POSIXy timezone specs
SELECT 'Wed Jul 11 10:51:14 America/New_York 2001'::timestamptz;
SELECT 'Wed Jul 11 10:51:14 GMT-4 2001'::timestamptz;
SELECT 'Wed Jul 11 10:51:14 GMT+4 2001'::timestamptz;
SELECT 'Wed Jul 11 10:51:14 PST-03:00 2001'::timestamptz;
SELECT 'Wed Jul 11 10:51:14 PST+03:00 2001'::timestamptz;
SELECT '' AS "64", d1 FROM TIMESTAMPTZ_TBL;
-- Check behavior at the lower boundary of the timestamp range
SELECT '4714-11-24 00:00:00+00 BC'::timestamptz;
SELECT '4714-11-23 16:00:00-08 BC'::timestamptz;
SELECT 'Sun Nov 23 16:00:00 4714 PST BC'::timestamptz;
SELECT '4714-11-23 23:59:59+00 BC'::timestamptz; -- out of range
-- The upper boundary differs between integer and float timestamps, so no check
-- Demonstrate functions and operators
SELECT '' AS "48", d1 FROM TIMESTAMPTZ_TBL
WHERE d1 > timestamp with time zone '1997-01-02';
SELECT '' AS "15", d1 FROM TIMESTAMPTZ_TBL
WHERE d1 < timestamp with time zone '1997-01-02';
SELECT '' AS one, d1 FROM TIMESTAMPTZ_TBL
WHERE d1 = timestamp with time zone '1997-01-02';
SELECT '' AS "63", d1 FROM TIMESTAMPTZ_TBL
WHERE d1 != timestamp with time zone '1997-01-02';
SELECT '' AS "16", d1 FROM TIMESTAMPTZ_TBL
WHERE d1 <= timestamp with time zone '1997-01-02';
SELECT '' AS "49", d1 FROM TIMESTAMPTZ_TBL
WHERE d1 >= timestamp with time zone '1997-01-02';
SELECT '' AS "54", d1 - timestamp with time zone '1997-01-02' AS diff
FROM TIMESTAMPTZ_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01';
SELECT '' AS date_trunc_week, date_trunc( 'week', timestamp with time zone '2004-02-29 15:44:17.71393' ) AS week_trunc;
SELECT '' AS date_trunc_at_tz, date_trunc('day', timestamp with time zone '2001-02-16 20:38:40+00', 'Australia/Sydney') as sydney_trunc; -- zone name
SELECT '' AS date_trunc_at_tz, date_trunc('day', timestamp with time zone '2001-02-16 20:38:40+00', 'GMT') as gmt_trunc; -- fixed-offset abbreviation
SELECT '' AS date_trunc_at_tz, date_trunc('day', timestamp with time zone '2001-02-16 20:38:40+00', 'VET') as vet_trunc; -- variable-offset abbreviation
-- Test casting within a BETWEEN qualifier
SELECT '' AS "54", d1 - timestamp with time zone '1997-01-02' AS diff
FROM TIMESTAMPTZ_TBL
WHERE d1 BETWEEN timestamp with time zone '1902-01-01' AND timestamp with time zone '2038-01-01';
-- DATE_PART (timestamptz_part)
SELECT d1 as timestamptz,
date_part( 'year', d1) AS year, date_part( 'month', d1) AS month,
date_part( 'day', d1) AS day, date_part( 'hour', d1) AS hour,
date_part( 'minute', d1) AS minute, date_part( 'second', d1) AS second
FROM TIMESTAMPTZ_TBL;
SELECT d1 as timestamptz,
date_part( 'quarter', d1) AS quarter, date_part( 'msec', d1) AS msec,
date_part( 'usec', d1) AS usec
FROM TIMESTAMPTZ_TBL;
SELECT d1 as timestamptz,
date_part( 'isoyear', d1) AS isoyear, date_part( 'week', d1) AS week,
date_part( 'isodow', d1) AS isodow, date_part( 'dow', d1) AS dow,
date_part( 'doy', d1) AS doy
FROM TIMESTAMPTZ_TBL;
SELECT d1 as timestamptz,
date_part( 'decade', d1) AS decade,
date_part( 'century', d1) AS century,
date_part( 'millennium', d1) AS millennium,
round(date_part( 'julian', d1)) AS julian
FROM TIMESTAMPTZ_TBL;
SELECT d1 as timestamptz,
date_part( 'timezone', d1) AS timezone,
date_part( 'timezone_hour', d1) AS timezone_hour,
date_part( 'timezone_minute', d1) AS timezone_minute
FROM TIMESTAMPTZ_TBL;
-- TO_CHAR()
SELECT '' AS to_char_1, to_char(d1, 'DAY Day day DY Dy dy MONTH Month month RM MON Mon mon')
FROM TIMESTAMPTZ_TBL;
SELECT '' AS to_char_2, to_char(d1, 'FMDAY FMDay FMday FMMONTH FMMonth FMmonth FMRM')
FROM TIMESTAMPTZ_TBL;
SELECT '' AS to_char_3, to_char(d1, 'Y,YYY YYYY YYY YY Y CC Q MM WW DDD DD D J')
FROM TIMESTAMPTZ_TBL;
SELECT '' AS to_char_4, to_char(d1, 'FMY,YYY FMYYYY FMYYY FMYY FMY FMCC FMQ FMMM FMWW FMDDD FMDD FMD FMJ')
FROM TIMESTAMPTZ_TBL;
SELECT '' AS to_char_5, to_char(d1, 'HH HH12 HH24 MI SS SSSS')
FROM TIMESTAMPTZ_TBL;
SELECT '' AS to_char_6, to_char(d1, E'"HH:MI:SS is" HH:MI:SS "\\"text between quote marks\\""')
FROM TIMESTAMPTZ_TBL;
SELECT '' AS to_char_7, to_char(d1, 'HH24--text--MI--text--SS')
FROM TIMESTAMPTZ_TBL;
SELECT '' AS to_char_8, to_char(d1, 'YYYYTH YYYYth Jth')
FROM TIMESTAMPTZ_TBL;
SELECT '' AS to_char_9, to_char(d1, 'YYYY A.D. YYYY a.d. YYYY bc HH:MI:SS P.M. HH:MI:SS p.m. HH:MI:SS pm')
FROM TIMESTAMPTZ_TBL;
SELECT '' AS to_char_10, to_char(d1, 'IYYY IYY IY I IW IDDD ID')
FROM TIMESTAMPTZ_TBL;
SELECT '' AS to_char_11, to_char(d1, 'FMIYYY FMIYY FMIY FMI FMIW FMIDDD FMID')
FROM TIMESTAMPTZ_TBL;
SELECT '' AS to_char_12, to_char(d, 'FF1 FF2 FF3 FF4 FF5 FF6 ff1 ff2 ff3 ff4 ff5 ff6 MS US')
FROM (VALUES
('2018-11-02 12:34:56'::timestamptz),
('2018-11-02 12:34:56.78'),
('2018-11-02 12:34:56.78901'),
('2018-11-02 12:34:56.78901234')
) d(d);
-- Check OF, TZH, TZM with various zone offsets, particularly fractional hours
SET timezone = '00:00';
SELECT to_char(now(), 'OF') as "OF", to_char(now(), 'TZH:TZM') as "TZH:TZM";
SET timezone = '+02:00';
SELECT to_char(now(), 'OF') as "OF", to_char(now(), 'TZH:TZM') as "TZH:TZM";
SET timezone = '-13:00';
SELECT to_char(now(), 'OF') as "OF", to_char(now(), 'TZH:TZM') as "TZH:TZM";
SET timezone = '-00:30';
SELECT to_char(now(), 'OF') as "OF", to_char(now(), 'TZH:TZM') as "TZH:TZM";
SET timezone = '00:30';
SELECT to_char(now(), 'OF') as "OF", to_char(now(), 'TZH:TZM') as "TZH:TZM";
SET timezone = '-04:30';
SELECT to_char(now(), 'OF') as "OF", to_char(now(), 'TZH:TZM') as "TZH:TZM";
SET timezone = '04:30';
SELECT to_char(now(), 'OF') as "OF", to_char(now(), 'TZH:TZM') as "TZH:TZM";
SET timezone = '-04:15';
SELECT to_char(now(), 'OF') as "OF", to_char(now(), 'TZH:TZM') as "TZH:TZM";
SET timezone = '04:15';
SELECT to_char(now(), 'OF') as "OF", to_char(now(), 'TZH:TZM') as "TZH:TZM";
RESET timezone;
CREATE TABLE TIMESTAMPTZ_TST (a int , b timestamptz);
-- Test year field value with len > 4
INSERT INTO TIMESTAMPTZ_TST VALUES(1, 'Sat Mar 12 23:58:48 1000 IST');
INSERT INTO TIMESTAMPTZ_TST VALUES(2, 'Sat Mar 12 23:58:48 10000 IST');
INSERT INTO TIMESTAMPTZ_TST VALUES(3, 'Sat Mar 12 23:58:48 100000 IST');
INSERT INTO TIMESTAMPTZ_TST VALUES(3, '10000 Mar 12 23:58:48 IST');
INSERT INTO TIMESTAMPTZ_TST VALUES(4, '100000312 23:58:48 IST');
INSERT INTO TIMESTAMPTZ_TST VALUES(4, '1000000312 23:58:48 IST');
--Verify data
SELECT * FROM TIMESTAMPTZ_TST ORDER BY a;
--Cleanup
DROP TABLE TIMESTAMPTZ_TST;
-- test timestamptz constructors
set TimeZone to 'America/New_York';
-- numeric timezone
SELECT make_timestamptz(1973, 07, 15, 08, 15, 55.33);
SELECT make_timestamptz(1973, 07, 15, 08, 15, 55.33, '+2');
SELECT make_timestamptz(1973, 07, 15, 08, 15, 55.33, '-2');
WITH tzs (tz) AS (VALUES
('+1'), ('+1:'), ('+1:0'), ('+100'), ('+1:00'), ('+01:00'),
('+10'), ('+1000'), ('+10:'), ('+10:0'), ('+10:00'), ('+10:00:'),
('+10:00:1'), ('+10:00:01'),
('+10:00:10'))
SELECT make_timestamptz(2010, 2, 27, 3, 45, 00, tz), tz FROM tzs;
-- these should fail
SELECT make_timestamptz(1973, 07, 15, 08, 15, 55.33, '2');
SELECT make_timestamptz(2014, 12, 10, 10, 10, 10, '+16');
SELECT make_timestamptz(2014, 12, 10, 10, 10, 10, '-16');
-- should be true
SELECT make_timestamptz(1973, 07, 15, 08, 15, 55.33, '+2') = '1973-07-15 08:15:55.33+02'::timestamptz;
-- full timezone names
SELECT make_timestamptz(2014, 12, 10, 0, 0, 0, 'Europe/Prague') = timestamptz '2014-12-10 00:00:00 Europe/Prague';
SELECT make_timestamptz(2014, 12, 10, 0, 0, 0, 'Europe/Prague') AT TIME ZONE 'UTC';
SELECT make_timestamptz(1846, 12, 10, 0, 0, 0, 'Asia/Manila') AT TIME ZONE 'UTC';
SELECT make_timestamptz(1881, 12, 10, 0, 0, 0, 'Europe/Paris') AT TIME ZONE 'UTC';
SELECT make_timestamptz(1910, 12, 24, 0, 0, 0, 'Nehwon/Lankhmar');
-- abbreviations
SELECT make_timestamptz(2008, 12, 10, 10, 10, 10, 'EST');
SELECT make_timestamptz(2008, 12, 10, 10, 10, 10, 'EDT');
SELECT make_timestamptz(2014, 12, 10, 10, 10, 10, 'PST8PDT');
RESET TimeZone;
--
-- Test behavior with a dynamic (time-varying) timezone abbreviation.
-- These tests rely on the knowledge that MSK (Europe/Moscow standard time)
-- moved forwards in Mar 2011 and backwards again in Oct 2014.
--
SET TimeZone to 'UTC';
SELECT '2011-03-27 00:00:00 Europe/Moscow'::timestamptz;
SELECT '2011-03-27 01:00:00 Europe/Moscow'::timestamptz;
SELECT '2011-03-27 01:59:59 Europe/Moscow'::timestamptz;
SELECT '2011-03-27 02:00:00 Europe/Moscow'::timestamptz;
SELECT '2011-03-27 02:00:01 Europe/Moscow'::timestamptz;
SELECT '2011-03-27 02:59:59 Europe/Moscow'::timestamptz;
SELECT '2011-03-27 03:00:00 Europe/Moscow'::timestamptz;
SELECT '2011-03-27 03:00:01 Europe/Moscow'::timestamptz;
SELECT '2011-03-27 04:00:00 Europe/Moscow'::timestamptz;
SELECT '2011-03-27 00:00:00 MSK'::timestamptz;
SELECT '2011-03-27 01:00:00 MSK'::timestamptz;
SELECT '2011-03-27 01:59:59 MSK'::timestamptz;
SELECT '2011-03-27 02:00:00 MSK'::timestamptz;
SELECT '2011-03-27 02:00:01 MSK'::timestamptz;
SELECT '2011-03-27 02:59:59 MSK'::timestamptz;
SELECT '2011-03-27 03:00:00 MSK'::timestamptz;
SELECT '2011-03-27 03:00:01 MSK'::timestamptz;
SELECT '2011-03-27 04:00:00 MSK'::timestamptz;
SELECT '2014-10-26 00:00:00 Europe/Moscow'::timestamptz;
SELECT '2014-10-26 00:59:59 Europe/Moscow'::timestamptz;
SELECT '2014-10-26 01:00:00 Europe/Moscow'::timestamptz;
SELECT '2014-10-26 01:00:01 Europe/Moscow'::timestamptz;
SELECT '2014-10-26 02:00:00 Europe/Moscow'::timestamptz;
SELECT '2014-10-26 00:00:00 MSK'::timestamptz;
SELECT '2014-10-26 00:59:59 MSK'::timestamptz;
SELECT '2014-10-26 01:00:00 MSK'::timestamptz;
SELECT '2014-10-26 01:00:01 MSK'::timestamptz;
SELECT '2014-10-26 02:00:00 MSK'::timestamptz;
SELECT '2011-03-27 00:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
SELECT '2011-03-27 01:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
SELECT '2011-03-27 01:59:59'::timestamp AT TIME ZONE 'Europe/Moscow';
SELECT '2011-03-27 02:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
SELECT '2011-03-27 02:00:01'::timestamp AT TIME ZONE 'Europe/Moscow';
SELECT '2011-03-27 02:59:59'::timestamp AT TIME ZONE 'Europe/Moscow';
SELECT '2011-03-27 03:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
SELECT '2011-03-27 03:00:01'::timestamp AT TIME ZONE 'Europe/Moscow';
SELECT '2011-03-27 04:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
SELECT '2011-03-27 00:00:00'::timestamp AT TIME ZONE 'MSK';
SELECT '2011-03-27 01:00:00'::timestamp AT TIME ZONE 'MSK';
SELECT '2011-03-27 01:59:59'::timestamp AT TIME ZONE 'MSK';
SELECT '2011-03-27 02:00:00'::timestamp AT TIME ZONE 'MSK';
SELECT '2011-03-27 02:00:01'::timestamp AT TIME ZONE 'MSK';
SELECT '2011-03-27 02:59:59'::timestamp AT TIME ZONE 'MSK';
SELECT '2011-03-27 03:00:00'::timestamp AT TIME ZONE 'MSK';
SELECT '2011-03-27 03:00:01'::timestamp AT TIME ZONE 'MSK';
SELECT '2011-03-27 04:00:00'::timestamp AT TIME ZONE 'MSK';
SELECT '2014-10-26 00:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
SELECT '2014-10-26 00:59:59'::timestamp AT TIME ZONE 'Europe/Moscow';
SELECT '2014-10-26 01:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
SELECT '2014-10-26 01:00:01'::timestamp AT TIME ZONE 'Europe/Moscow';
SELECT '2014-10-26 02:00:00'::timestamp AT TIME ZONE 'Europe/Moscow';
SELECT '2014-10-26 00:00:00'::timestamp AT TIME ZONE 'MSK';
SELECT '2014-10-26 00:59:59'::timestamp AT TIME ZONE 'MSK';
SELECT '2014-10-26 01:00:00'::timestamp AT TIME ZONE 'MSK';
SELECT '2014-10-26 01:00:01'::timestamp AT TIME ZONE 'MSK';
SELECT '2014-10-26 02:00:00'::timestamp AT TIME ZONE 'MSK';
SELECT make_timestamptz(2014, 10, 26, 0, 0, 0, 'MSK');
SELECT make_timestamptz(2014, 10, 26, 1, 0, 0, 'MSK');
SELECT to_timestamp( 0); -- 1970-01-01 00:00:00+00
SELECT to_timestamp( 946684800); -- 2000-01-01 00:00:00+00
SELECT to_timestamp(1262349296.7890123); -- 2010-01-01 12:34:56.789012+00
-- edge cases
SELECT to_timestamp(-210866803200); -- 4714-11-24 00:00:00+00 BC
-- upper limit varies between integer and float timestamps, so hard to test
-- nonfinite values
SELECT to_timestamp(' Infinity'::float);
SELECT to_timestamp('-Infinity'::float);
SELECT to_timestamp('NaN'::float);
SET TimeZone to 'Europe/Moscow';
SELECT '2011-03-26 21:00:00 UTC'::timestamptz;
SELECT '2011-03-26 22:00:00 UTC'::timestamptz;
SELECT '2011-03-26 22:59:59 UTC'::timestamptz;
SELECT '2011-03-26 23:00:00 UTC'::timestamptz;
SELECT '2011-03-26 23:00:01 UTC'::timestamptz;
SELECT '2011-03-26 23:59:59 UTC'::timestamptz;
SELECT '2011-03-27 00:00:00 UTC'::timestamptz;
SELECT '2014-10-25 21:00:00 UTC'::timestamptz;
SELECT '2014-10-25 21:59:59 UTC'::timestamptz;
SELECT '2014-10-25 22:00:00 UTC'::timestamptz;
SELECT '2014-10-25 22:00:01 UTC'::timestamptz;
SELECT '2014-10-25 23:00:00 UTC'::timestamptz;
RESET TimeZone;
SELECT '2011-03-26 21:00:00 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
SELECT '2011-03-26 22:00:00 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
SELECT '2011-03-26 22:59:59 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
SELECT '2011-03-26 23:00:00 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
SELECT '2011-03-26 23:00:01 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
SELECT '2011-03-26 23:59:59 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
SELECT '2011-03-27 00:00:00 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
SELECT '2014-10-25 21:00:00 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
SELECT '2014-10-25 21:59:59 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
SELECT '2014-10-25 22:00:00 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
SELECT '2014-10-25 22:00:01 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
SELECT '2014-10-25 23:00:00 UTC'::timestamptz AT TIME ZONE 'Europe/Moscow';
SELECT '2011-03-26 21:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
SELECT '2011-03-26 22:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
SELECT '2011-03-26 22:59:59 UTC'::timestamptz AT TIME ZONE 'MSK';
SELECT '2011-03-26 23:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
SELECT '2011-03-26 23:00:01 UTC'::timestamptz AT TIME ZONE 'MSK';
SELECT '2011-03-26 23:59:59 UTC'::timestamptz AT TIME ZONE 'MSK';
SELECT '2011-03-27 00:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
SELECT '2014-10-25 21:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
SELECT '2014-10-25 21:59:59 UTC'::timestamptz AT TIME ZONE 'MSK';
SELECT '2014-10-25 22:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
SELECT '2014-10-25 22:00:01 UTC'::timestamptz AT TIME ZONE 'MSK';
SELECT '2014-10-25 23:00:00 UTC'::timestamptz AT TIME ZONE 'MSK';
--
-- Test that AT TIME ZONE isn't misoptimized when using an index (bug #14504)
--
create temp table tmptz (f1 timestamptz primary key);
insert into tmptz values ('2017-01-18 00:00+00');
explain (costs off)
select * from tmptz where f1 at time zone 'utc' = '2017-01-18 00:00';
select * from tmptz where f1 at time zone 'utc' = '2017-01-18 00:00';
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