postgresql/src/test/regress/expected/date.out

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--
-- DATE
--
CREATE TABLE DATE_TBL (f1 date);
INSERT INTO DATE_TBL VALUES ('1957-04-09');
INSERT INTO DATE_TBL VALUES ('1957-06-13');
INSERT INTO DATE_TBL VALUES ('1996-02-28');
INSERT INTO DATE_TBL VALUES ('1996-02-29');
INSERT INTO DATE_TBL VALUES ('1996-03-01');
INSERT INTO DATE_TBL VALUES ('1996-03-02');
INSERT INTO DATE_TBL VALUES ('1997-02-28');
INSERT INTO DATE_TBL VALUES ('1997-02-29');
ERROR: date/time field value out of range: "1997-02-29"
LINE 1: INSERT INTO DATE_TBL VALUES ('1997-02-29');
^
INSERT INTO DATE_TBL VALUES ('1997-03-01');
INSERT INTO DATE_TBL VALUES ('1997-03-02');
INSERT INTO DATE_TBL VALUES ('2000-04-01');
INSERT INTO DATE_TBL VALUES ('2000-04-02');
INSERT INTO DATE_TBL VALUES ('2000-04-03');
INSERT INTO DATE_TBL VALUES ('2038-04-08');
INSERT INTO DATE_TBL VALUES ('2039-04-09');
INSERT INTO DATE_TBL VALUES ('2040-04-10');
INSERT INTO DATE_TBL VALUES ('2040-04-10 BC');
SELECT f1 FROM DATE_TBL;
f1
---------------
04-09-1957
06-13-1957
02-28-1996
02-29-1996
03-01-1996
03-02-1996
02-28-1997
03-01-1997
03-02-1997
04-01-2000
04-02-2000
04-03-2000
04-08-2038
04-09-2039
04-10-2040
04-10-2040 BC
(16 rows)
SELECT f1 FROM DATE_TBL WHERE f1 < '2000-01-01';
f1
---------------
04-09-1957
06-13-1957
02-28-1996
02-29-1996
03-01-1996
03-02-1996
02-28-1997
03-01-1997
03-02-1997
04-10-2040 BC
(10 rows)
SELECT f1 FROM DATE_TBL
WHERE f1 BETWEEN '2000-01-01' AND '2001-01-01';
f1
------------
04-01-2000
04-02-2000
04-03-2000
(3 rows)
--
-- Check all the documented input formats
--
SET datestyle TO iso; -- display results in ISO
SET datestyle TO ymd;
SELECT date 'January 8, 1999';
date
------------
1999-01-08
(1 row)
SELECT date '1999-01-08';
date
------------
1999-01-08
(1 row)
SELECT date '1999-01-18';
date
------------
1999-01-18
(1 row)
SELECT date '1/8/1999';
ERROR: date/time field value out of range: "1/8/1999"
LINE 1: SELECT date '1/8/1999';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '1/18/1999';
ERROR: date/time field value out of range: "1/18/1999"
LINE 1: SELECT date '1/18/1999';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '18/1/1999';
ERROR: date/time field value out of range: "18/1/1999"
LINE 1: SELECT date '18/1/1999';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '01/02/03';
date
------------
2001-02-03
(1 row)
SELECT date '19990108';
date
------------
1999-01-08
(1 row)
SELECT date '990108';
date
------------
1999-01-08
(1 row)
SELECT date '1999.008';
date
------------
1999-01-08
(1 row)
SELECT date 'J2451187';
date
------------
1999-01-08
(1 row)
SELECT date 'January 8, 99 BC';
ERROR: date/time field value out of range: "January 8, 99 BC"
LINE 1: SELECT date 'January 8, 99 BC';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '99-Jan-08';
date
------------
1999-01-08
(1 row)
SELECT date '1999-Jan-08';
date
------------
1999-01-08
(1 row)
SELECT date '08-Jan-99';
ERROR: date/time field value out of range: "08-Jan-99"
LINE 1: SELECT date '08-Jan-99';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '08-Jan-1999';
date
------------
1999-01-08
(1 row)
SELECT date 'Jan-08-99';
ERROR: date/time field value out of range: "Jan-08-99"
LINE 1: SELECT date 'Jan-08-99';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date 'Jan-08-1999';
date
------------
1999-01-08
(1 row)
SELECT date '99-08-Jan';
ERROR: invalid input syntax for type date: "99-08-Jan"
LINE 1: SELECT date '99-08-Jan';
^
SELECT date '1999-08-Jan';
ERROR: invalid input syntax for type date: "1999-08-Jan"
LINE 1: SELECT date '1999-08-Jan';
^
SELECT date '99 Jan 08';
date
------------
1999-01-08
(1 row)
SELECT date '1999 Jan 08';
date
------------
1999-01-08
(1 row)
SELECT date '08 Jan 99';
ERROR: date/time field value out of range: "08 Jan 99"
LINE 1: SELECT date '08 Jan 99';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '08 Jan 1999';
date
------------
1999-01-08
(1 row)
SELECT date 'Jan 08 99';
ERROR: date/time field value out of range: "Jan 08 99"
LINE 1: SELECT date 'Jan 08 99';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date 'Jan 08 1999';
date
------------
1999-01-08
(1 row)
SELECT date '99 08 Jan';
date
------------
1999-01-08
(1 row)
SELECT date '1999 08 Jan';
date
------------
1999-01-08
(1 row)
SELECT date '99-01-08';
date
------------
1999-01-08
(1 row)
SELECT date '1999-01-08';
date
------------
1999-01-08
(1 row)
SELECT date '08-01-99';
ERROR: date/time field value out of range: "08-01-99"
LINE 1: SELECT date '08-01-99';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '08-01-1999';
ERROR: date/time field value out of range: "08-01-1999"
LINE 1: SELECT date '08-01-1999';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '01-08-99';
ERROR: date/time field value out of range: "01-08-99"
LINE 1: SELECT date '01-08-99';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '01-08-1999';
ERROR: date/time field value out of range: "01-08-1999"
LINE 1: SELECT date '01-08-1999';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '99-08-01';
date
------------
1999-08-01
(1 row)
SELECT date '1999-08-01';
date
------------
1999-08-01
(1 row)
SELECT date '99 01 08';
date
------------
1999-01-08
(1 row)
SELECT date '1999 01 08';
date
------------
1999-01-08
(1 row)
SELECT date '08 01 99';
ERROR: date/time field value out of range: "08 01 99"
LINE 1: SELECT date '08 01 99';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '08 01 1999';
ERROR: date/time field value out of range: "08 01 1999"
LINE 1: SELECT date '08 01 1999';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '01 08 99';
ERROR: date/time field value out of range: "01 08 99"
LINE 1: SELECT date '01 08 99';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '01 08 1999';
ERROR: date/time field value out of range: "01 08 1999"
LINE 1: SELECT date '01 08 1999';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '99 08 01';
date
------------
1999-08-01
(1 row)
SELECT date '1999 08 01';
date
------------
1999-08-01
(1 row)
SET datestyle TO dmy;
SELECT date 'January 8, 1999';
date
------------
1999-01-08
(1 row)
SELECT date '1999-01-08';
date
------------
1999-01-08
(1 row)
SELECT date '1999-01-18';
date
------------
1999-01-18
(1 row)
SELECT date '1/8/1999';
date
------------
1999-08-01
(1 row)
SELECT date '1/18/1999';
ERROR: date/time field value out of range: "1/18/1999"
LINE 1: SELECT date '1/18/1999';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '18/1/1999';
date
------------
1999-01-18
(1 row)
SELECT date '01/02/03';
date
------------
2003-02-01
(1 row)
SELECT date '19990108';
date
------------
1999-01-08
(1 row)
SELECT date '990108';
date
------------
1999-01-08
(1 row)
SELECT date '1999.008';
date
------------
1999-01-08
(1 row)
SELECT date 'J2451187';
date
------------
1999-01-08
(1 row)
SELECT date 'January 8, 99 BC';
date
---------------
0099-01-08 BC
(1 row)
SELECT date '99-Jan-08';
ERROR: date/time field value out of range: "99-Jan-08"
LINE 1: SELECT date '99-Jan-08';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '1999-Jan-08';
date
------------
1999-01-08
(1 row)
SELECT date '08-Jan-99';
date
------------
1999-01-08
(1 row)
SELECT date '08-Jan-1999';
date
------------
1999-01-08
(1 row)
SELECT date 'Jan-08-99';
date
------------
1999-01-08
(1 row)
SELECT date 'Jan-08-1999';
date
------------
1999-01-08
(1 row)
SELECT date '99-08-Jan';
ERROR: invalid input syntax for type date: "99-08-Jan"
LINE 1: SELECT date '99-08-Jan';
^
SELECT date '1999-08-Jan';
ERROR: invalid input syntax for type date: "1999-08-Jan"
LINE 1: SELECT date '1999-08-Jan';
^
SELECT date '99 Jan 08';
ERROR: date/time field value out of range: "99 Jan 08"
LINE 1: SELECT date '99 Jan 08';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '1999 Jan 08';
date
------------
1999-01-08
(1 row)
SELECT date '08 Jan 99';
date
------------
1999-01-08
(1 row)
SELECT date '08 Jan 1999';
date
------------
1999-01-08
(1 row)
SELECT date 'Jan 08 99';
date
------------
1999-01-08
(1 row)
SELECT date 'Jan 08 1999';
date
------------
1999-01-08
(1 row)
SELECT date '99 08 Jan';
ERROR: invalid input syntax for type date: "99 08 Jan"
LINE 1: SELECT date '99 08 Jan';
^
SELECT date '1999 08 Jan';
date
------------
1999-01-08
(1 row)
SELECT date '99-01-08';
ERROR: date/time field value out of range: "99-01-08"
LINE 1: SELECT date '99-01-08';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '1999-01-08';
date
------------
1999-01-08
(1 row)
SELECT date '08-01-99';
date
------------
1999-01-08
(1 row)
SELECT date '08-01-1999';
date
------------
1999-01-08
(1 row)
SELECT date '01-08-99';
date
------------
1999-08-01
(1 row)
SELECT date '01-08-1999';
date
------------
1999-08-01
(1 row)
SELECT date '99-08-01';
ERROR: date/time field value out of range: "99-08-01"
LINE 1: SELECT date '99-08-01';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '1999-08-01';
date
------------
1999-08-01
(1 row)
SELECT date '99 01 08';
ERROR: date/time field value out of range: "99 01 08"
LINE 1: SELECT date '99 01 08';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '1999 01 08';
date
------------
1999-01-08
(1 row)
SELECT date '08 01 99';
date
------------
1999-01-08
(1 row)
SELECT date '08 01 1999';
date
------------
1999-01-08
(1 row)
SELECT date '01 08 99';
date
------------
1999-08-01
(1 row)
SELECT date '01 08 1999';
date
------------
1999-08-01
(1 row)
SELECT date '99 08 01';
ERROR: date/time field value out of range: "99 08 01"
LINE 1: SELECT date '99 08 01';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '1999 08 01';
date
------------
1999-08-01
(1 row)
SET datestyle TO mdy;
SELECT date 'January 8, 1999';
date
------------
1999-01-08
(1 row)
SELECT date '1999-01-08';
date
------------
1999-01-08
(1 row)
SELECT date '1999-01-18';
date
------------
1999-01-18
(1 row)
SELECT date '1/8/1999';
date
------------
1999-01-08
(1 row)
SELECT date '1/18/1999';
date
------------
1999-01-18
(1 row)
SELECT date '18/1/1999';
ERROR: date/time field value out of range: "18/1/1999"
LINE 1: SELECT date '18/1/1999';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '01/02/03';
date
------------
2003-01-02
(1 row)
SELECT date '19990108';
date
------------
1999-01-08
(1 row)
SELECT date '990108';
date
------------
1999-01-08
(1 row)
SELECT date '1999.008';
date
------------
1999-01-08
(1 row)
SELECT date 'J2451187';
date
------------
1999-01-08
(1 row)
SELECT date 'January 8, 99 BC';
date
---------------
0099-01-08 BC
(1 row)
SELECT date '99-Jan-08';
ERROR: date/time field value out of range: "99-Jan-08"
LINE 1: SELECT date '99-Jan-08';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '1999-Jan-08';
date
------------
1999-01-08
(1 row)
SELECT date '08-Jan-99';
date
------------
1999-01-08
(1 row)
SELECT date '08-Jan-1999';
date
------------
1999-01-08
(1 row)
SELECT date 'Jan-08-99';
date
------------
1999-01-08
(1 row)
SELECT date 'Jan-08-1999';
date
------------
1999-01-08
(1 row)
SELECT date '99-08-Jan';
ERROR: invalid input syntax for type date: "99-08-Jan"
LINE 1: SELECT date '99-08-Jan';
^
SELECT date '1999-08-Jan';
ERROR: invalid input syntax for type date: "1999-08-Jan"
LINE 1: SELECT date '1999-08-Jan';
^
SELECT date '99 Jan 08';
ERROR: invalid input syntax for type date: "99 Jan 08"
LINE 1: SELECT date '99 Jan 08';
^
SELECT date '1999 Jan 08';
date
------------
1999-01-08
(1 row)
SELECT date '08 Jan 99';
date
------------
1999-01-08
(1 row)
SELECT date '08 Jan 1999';
date
------------
1999-01-08
(1 row)
SELECT date 'Jan 08 99';
date
------------
1999-01-08
(1 row)
SELECT date 'Jan 08 1999';
date
------------
1999-01-08
(1 row)
SELECT date '99 08 Jan';
ERROR: invalid input syntax for type date: "99 08 Jan"
LINE 1: SELECT date '99 08 Jan';
^
SELECT date '1999 08 Jan';
date
------------
1999-01-08
(1 row)
SELECT date '99-01-08';
ERROR: date/time field value out of range: "99-01-08"
LINE 1: SELECT date '99-01-08';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '1999-01-08';
date
------------
1999-01-08
(1 row)
SELECT date '08-01-99';
date
------------
1999-08-01
(1 row)
SELECT date '08-01-1999';
date
------------
1999-08-01
(1 row)
SELECT date '01-08-99';
date
------------
1999-01-08
(1 row)
SELECT date '01-08-1999';
date
------------
1999-01-08
(1 row)
SELECT date '99-08-01';
ERROR: date/time field value out of range: "99-08-01"
LINE 1: SELECT date '99-08-01';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '1999-08-01';
date
------------
1999-08-01
(1 row)
SELECT date '99 01 08';
ERROR: date/time field value out of range: "99 01 08"
LINE 1: SELECT date '99 01 08';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '1999 01 08';
date
------------
1999-01-08
(1 row)
SELECT date '08 01 99';
date
------------
1999-08-01
(1 row)
SELECT date '08 01 1999';
date
------------
1999-08-01
(1 row)
SELECT date '01 08 99';
date
------------
1999-01-08
(1 row)
SELECT date '01 08 1999';
date
------------
1999-01-08
(1 row)
SELECT date '99 08 01';
ERROR: date/time field value out of range: "99 08 01"
LINE 1: SELECT date '99 08 01';
^
HINT: Perhaps you need a different "datestyle" setting.
SELECT date '1999 08 01';
date
------------
1999-08-01
(1 row)
-- Check upper and lower limits of date range
SELECT date '4714-11-24 BC';
date
---------------
4714-11-24 BC
(1 row)
SELECT date '4714-11-23 BC'; -- out of range
ERROR: date out of range: "4714-11-23 BC"
LINE 1: SELECT date '4714-11-23 BC';
^
SELECT date '5874897-12-31';
date
---------------
5874897-12-31
(1 row)
SELECT date '5874898-01-01'; -- out of range
ERROR: date out of range: "5874898-01-01"
LINE 1: SELECT date '5874898-01-01';
^
-- Test non-error-throwing API
SELECT pg_input_is_valid('now', 'date');
pg_input_is_valid
-------------------
t
(1 row)
SELECT pg_input_is_valid('garbage', 'date');
pg_input_is_valid
-------------------
f
(1 row)
SELECT pg_input_is_valid('6874898-01-01', 'date');
pg_input_is_valid
-------------------
f
(1 row)
SELECT * FROM pg_input_error_info('garbage', 'date');
message | detail | hint | sql_error_code
-----------------------------------------------+--------+------+----------------
invalid input syntax for type date: "garbage" | | | 22007
(1 row)
SELECT * FROM pg_input_error_info('6874898-01-01', 'date');
message | detail | hint | sql_error_code
------------------------------------+--------+------+----------------
date out of range: "6874898-01-01" | | | 22008
(1 row)
RESET datestyle;
--
-- Simple math
-- Leave most of it for the horology tests
--
SELECT f1 - date '2000-01-01' AS "Days From 2K" FROM DATE_TBL;
Days From 2K
--------------
-15607
-15542
-1403
-1402
-1401
-1400
-1037
-1036
-1035
91
92
93
13977
14343
14710
-1475115
(16 rows)
SELECT f1 - date 'epoch' AS "Days From Epoch" FROM DATE_TBL;
Days From Epoch
-----------------
-4650
-4585
9554
9555
9556
9557
9920
9921
9922
11048
11049
11050
24934
25300
25667
-1464158
(16 rows)
SELECT date 'yesterday' - date 'today' AS "One day";
One day
---------
-1
(1 row)
SELECT date 'today' - date 'tomorrow' AS "One day";
One day
---------
-1
(1 row)
SELECT date 'yesterday' - date 'tomorrow' AS "Two days";
Two days
----------
-2
(1 row)
SELECT date 'tomorrow' - date 'today' AS "One day";
One day
---------
1
(1 row)
SELECT date 'today' - date 'yesterday' AS "One day";
One day
---------
1
(1 row)
SELECT date 'tomorrow' - date 'yesterday' AS "Two days";
Two days
----------
2
(1 row)
--
-- test extract!
--
SELECT f1 as "date",
date_part('year', f1) AS year,
date_part('month', f1) AS month,
date_part('day', f1) AS day,
date_part('quarter', f1) AS quarter,
date_part('decade', f1) AS decade,
date_part('century', f1) AS century,
date_part('millennium', f1) AS millennium,
date_part('isoyear', f1) AS isoyear,
date_part('week', f1) AS week,
date_part('dow', f1) AS dow,
date_part('isodow', f1) AS isodow,
date_part('doy', f1) AS doy,
date_part('julian', f1) AS julian,
date_part('epoch', f1) AS epoch
FROM date_tbl;
date | year | month | day | quarter | decade | century | millennium | isoyear | week | dow | isodow | doy | julian | epoch
---------------+-------+-------+-----+---------+--------+---------+------------+---------+------+-----+--------+-----+---------+---------------
04-09-1957 | 1957 | 4 | 9 | 2 | 195 | 20 | 2 | 1957 | 15 | 2 | 2 | 99 | 2435938 | -401760000
06-13-1957 | 1957 | 6 | 13 | 2 | 195 | 20 | 2 | 1957 | 24 | 4 | 4 | 164 | 2436003 | -396144000
02-28-1996 | 1996 | 2 | 28 | 1 | 199 | 20 | 2 | 1996 | 9 | 3 | 3 | 59 | 2450142 | 825465600
02-29-1996 | 1996 | 2 | 29 | 1 | 199 | 20 | 2 | 1996 | 9 | 4 | 4 | 60 | 2450143 | 825552000
03-01-1996 | 1996 | 3 | 1 | 1 | 199 | 20 | 2 | 1996 | 9 | 5 | 5 | 61 | 2450144 | 825638400
03-02-1996 | 1996 | 3 | 2 | 1 | 199 | 20 | 2 | 1996 | 9 | 6 | 6 | 62 | 2450145 | 825724800
02-28-1997 | 1997 | 2 | 28 | 1 | 199 | 20 | 2 | 1997 | 9 | 5 | 5 | 59 | 2450508 | 857088000
03-01-1997 | 1997 | 3 | 1 | 1 | 199 | 20 | 2 | 1997 | 9 | 6 | 6 | 60 | 2450509 | 857174400
03-02-1997 | 1997 | 3 | 2 | 1 | 199 | 20 | 2 | 1997 | 9 | 0 | 7 | 61 | 2450510 | 857260800
04-01-2000 | 2000 | 4 | 1 | 2 | 200 | 20 | 2 | 2000 | 13 | 6 | 6 | 92 | 2451636 | 954547200
04-02-2000 | 2000 | 4 | 2 | 2 | 200 | 20 | 2 | 2000 | 13 | 0 | 7 | 93 | 2451637 | 954633600
04-03-2000 | 2000 | 4 | 3 | 2 | 200 | 20 | 2 | 2000 | 14 | 1 | 1 | 94 | 2451638 | 954720000
04-08-2038 | 2038 | 4 | 8 | 2 | 203 | 21 | 3 | 2038 | 14 | 4 | 4 | 98 | 2465522 | 2154297600
04-09-2039 | 2039 | 4 | 9 | 2 | 203 | 21 | 3 | 2039 | 14 | 6 | 6 | 99 | 2465888 | 2185920000
04-10-2040 | 2040 | 4 | 10 | 2 | 204 | 21 | 3 | 2040 | 15 | 2 | 2 | 101 | 2466255 | 2217628800
04-10-2040 BC | -2040 | 4 | 10 | 2 | -204 | -21 | -3 | -2040 | 15 | 1 | 1 | 100 | 976430 | -126503251200
(16 rows)
--
-- epoch
--
SELECT EXTRACT(EPOCH FROM DATE '1970-01-01'); -- 0
extract
---------
0
(1 row)
--
-- century
--
SELECT EXTRACT(CENTURY FROM DATE '0101-12-31 BC'); -- -2
extract
---------
-2
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '0100-12-31 BC'); -- -1
extract
---------
-1
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '0001-12-31 BC'); -- -1
extract
---------
-1
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '0001-01-01'); -- 1
extract
---------
1
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '0001-01-01 AD'); -- 1
extract
---------
1
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '1900-12-31'); -- 19
extract
---------
19
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '1901-01-01'); -- 20
extract
---------
20
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '2000-12-31'); -- 20
extract
---------
20
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '2001-01-01'); -- 21
extract
---------
21
(1 row)
SELECT EXTRACT(CENTURY FROM CURRENT_DATE)>=21 AS True; -- true
true
------
t
(1 row)
--
-- millennium
--
SELECT EXTRACT(MILLENNIUM FROM DATE '0001-12-31 BC'); -- -1
extract
---------
-1
(1 row)
SELECT EXTRACT(MILLENNIUM FROM DATE '0001-01-01 AD'); -- 1
extract
---------
1
(1 row)
SELECT EXTRACT(MILLENNIUM FROM DATE '1000-12-31'); -- 1
extract
---------
1
(1 row)
SELECT EXTRACT(MILLENNIUM FROM DATE '1001-01-01'); -- 2
extract
---------
2
(1 row)
SELECT EXTRACT(MILLENNIUM FROM DATE '2000-12-31'); -- 2
extract
---------
2
(1 row)
SELECT EXTRACT(MILLENNIUM FROM DATE '2001-01-01'); -- 3
extract
---------
3
(1 row)
-- next test to be fixed on the turn of the next millennium;-)
SELECT EXTRACT(MILLENNIUM FROM CURRENT_DATE); -- 3
extract
---------
3
(1 row)
--
-- decade
--
SELECT EXTRACT(DECADE FROM DATE '1994-12-25'); -- 199
extract
---------
199
(1 row)
SELECT EXTRACT(DECADE FROM DATE '0010-01-01'); -- 1
extract
---------
1
(1 row)
SELECT EXTRACT(DECADE FROM DATE '0009-12-31'); -- 0
extract
---------
0
(1 row)
SELECT EXTRACT(DECADE FROM DATE '0001-01-01 BC'); -- 0
extract
---------
0
(1 row)
SELECT EXTRACT(DECADE FROM DATE '0002-12-31 BC'); -- -1
extract
---------
-1
(1 row)
SELECT EXTRACT(DECADE FROM DATE '0011-01-01 BC'); -- -1
extract
---------
-1
(1 row)
SELECT EXTRACT(DECADE FROM DATE '0012-12-31 BC'); -- -2
extract
---------
-2
(1 row)
--
-- all possible fields
--
SELECT EXTRACT(MICROSECONDS FROM DATE '2020-08-11');
ERROR: unit "microseconds" not supported for type date
SELECT EXTRACT(MILLISECONDS FROM DATE '2020-08-11');
ERROR: unit "milliseconds" not supported for type date
SELECT EXTRACT(SECOND FROM DATE '2020-08-11');
ERROR: unit "second" not supported for type date
SELECT EXTRACT(MINUTE FROM DATE '2020-08-11');
ERROR: unit "minute" not supported for type date
SELECT EXTRACT(HOUR FROM DATE '2020-08-11');
ERROR: unit "hour" not supported for type date
SELECT EXTRACT(DAY FROM DATE '2020-08-11');
extract
---------
11
(1 row)
SELECT EXTRACT(MONTH FROM DATE '2020-08-11');
extract
---------
8
(1 row)
SELECT EXTRACT(YEAR FROM DATE '2020-08-11');
extract
---------
2020
(1 row)
SELECT EXTRACT(YEAR FROM DATE '2020-08-11 BC');
extract
---------
-2020
(1 row)
SELECT EXTRACT(DECADE FROM DATE '2020-08-11');
extract
---------
202
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '2020-08-11');
extract
---------
21
(1 row)
SELECT EXTRACT(MILLENNIUM FROM DATE '2020-08-11');
extract
---------
3
(1 row)
SELECT EXTRACT(ISOYEAR FROM DATE '2020-08-11');
extract
---------
2020
(1 row)
SELECT EXTRACT(ISOYEAR FROM DATE '2020-08-11 BC');
extract
---------
-2020
(1 row)
SELECT EXTRACT(QUARTER FROM DATE '2020-08-11');
extract
---------
3
(1 row)
SELECT EXTRACT(WEEK FROM DATE '2020-08-11');
extract
---------
33
(1 row)
SELECT EXTRACT(DOW FROM DATE '2020-08-11');
extract
---------
2
(1 row)
SELECT EXTRACT(DOW FROM DATE '2020-08-16');
extract
---------
0
(1 row)
SELECT EXTRACT(ISODOW FROM DATE '2020-08-11');
extract
---------
2
(1 row)
SELECT EXTRACT(ISODOW FROM DATE '2020-08-16');
extract
---------
7
(1 row)
SELECT EXTRACT(DOY FROM DATE '2020-08-11');
extract
---------
224
(1 row)
SELECT EXTRACT(TIMEZONE FROM DATE '2020-08-11');
ERROR: unit "timezone" not supported for type date
SELECT EXTRACT(TIMEZONE_M FROM DATE '2020-08-11');
ERROR: unit "timezone_m" not supported for type date
SELECT EXTRACT(TIMEZONE_H FROM DATE '2020-08-11');
ERROR: unit "timezone_h" not supported for type date
SELECT EXTRACT(EPOCH FROM DATE '2020-08-11');
extract
------------
1597104000
(1 row)
SELECT EXTRACT(JULIAN FROM DATE '2020-08-11');
extract
---------
2459073
(1 row)
--
-- test trunc function!
--
SELECT DATE_TRUNC('MILLENNIUM', TIMESTAMP '1970-03-20 04:30:00.00000'); -- 1001
date_trunc
--------------------------
Thu Jan 01 00:00:00 1001
(1 row)
SELECT DATE_TRUNC('MILLENNIUM', DATE '1970-03-20'); -- 1001-01-01
date_trunc
------------------------------
Thu Jan 01 00:00:00 1001 PST
(1 row)
SELECT DATE_TRUNC('CENTURY', TIMESTAMP '1970-03-20 04:30:00.00000'); -- 1901
date_trunc
--------------------------
Tue Jan 01 00:00:00 1901
(1 row)
SELECT DATE_TRUNC('CENTURY', DATE '1970-03-20'); -- 1901
date_trunc
------------------------------
Tue Jan 01 00:00:00 1901 PST
(1 row)
SELECT DATE_TRUNC('CENTURY', DATE '2004-08-10'); -- 2001-01-01
date_trunc
------------------------------
Mon Jan 01 00:00:00 2001 PST
(1 row)
SELECT DATE_TRUNC('CENTURY', DATE '0002-02-04'); -- 0001-01-01
date_trunc
------------------------------
Mon Jan 01 00:00:00 0001 PST
(1 row)
SELECT DATE_TRUNC('CENTURY', DATE '0055-08-10 BC'); -- 0100-01-01 BC
date_trunc
---------------------------------
Tue Jan 01 00:00:00 0100 PST BC
(1 row)
SELECT DATE_TRUNC('DECADE', DATE '1993-12-25'); -- 1990-01-01
date_trunc
------------------------------
Mon Jan 01 00:00:00 1990 PST
(1 row)
SELECT DATE_TRUNC('DECADE', DATE '0004-12-25'); -- 0001-01-01 BC
date_trunc
---------------------------------
Sat Jan 01 00:00:00 0001 PST BC
(1 row)
SELECT DATE_TRUNC('DECADE', DATE '0002-12-31 BC'); -- 0011-01-01 BC
date_trunc
---------------------------------
Mon Jan 01 00:00:00 0011 PST BC
(1 row)
--
-- test infinity
--
select 'infinity'::date, '-infinity'::date;
date | date
----------+-----------
infinity | -infinity
(1 row)
select 'infinity'::date > 'today'::date as t;
t
---
t
(1 row)
select '-infinity'::date < 'today'::date as t;
t
---
t
(1 row)
select isfinite('infinity'::date), isfinite('-infinity'::date), isfinite('today'::date);
isfinite | isfinite | isfinite
----------+----------+----------
f | f | t
(1 row)
select 'infinity'::date = '+infinity'::date as t;
t
---
t
(1 row)
--
-- oscillating fields from non-finite date:
--
SELECT EXTRACT(DAY FROM DATE 'infinity'); -- NULL
extract
---------
(1 row)
SELECT EXTRACT(DAY FROM DATE '-infinity'); -- NULL
extract
---------
(1 row)
-- all supported fields
SELECT EXTRACT(DAY FROM DATE 'infinity'); -- NULL
extract
---------
(1 row)
SELECT EXTRACT(MONTH FROM DATE 'infinity'); -- NULL
extract
---------
(1 row)
SELECT EXTRACT(QUARTER FROM DATE 'infinity'); -- NULL
extract
---------
(1 row)
SELECT EXTRACT(WEEK FROM DATE 'infinity'); -- NULL
extract
---------
(1 row)
SELECT EXTRACT(DOW FROM DATE 'infinity'); -- NULL
extract
---------
(1 row)
SELECT EXTRACT(ISODOW FROM DATE 'infinity'); -- NULL
extract
---------
(1 row)
SELECT EXTRACT(DOY FROM DATE 'infinity'); -- NULL
extract
---------
(1 row)
--
-- monotonic fields from non-finite date:
--
SELECT EXTRACT(EPOCH FROM DATE 'infinity'); -- Infinity
extract
----------
Infinity
(1 row)
SELECT EXTRACT(EPOCH FROM DATE '-infinity'); -- -Infinity
extract
-----------
-Infinity
(1 row)
-- all supported fields
SELECT EXTRACT(YEAR FROM DATE 'infinity'); -- Infinity
extract
----------
Infinity
(1 row)
SELECT EXTRACT(DECADE FROM DATE 'infinity'); -- Infinity
extract
----------
Infinity
(1 row)
SELECT EXTRACT(CENTURY FROM DATE 'infinity'); -- Infinity
extract
----------
Infinity
(1 row)
SELECT EXTRACT(MILLENNIUM FROM DATE 'infinity'); -- Infinity
extract
----------
Infinity
(1 row)
SELECT EXTRACT(JULIAN FROM DATE 'infinity'); -- Infinity
extract
----------
Infinity
(1 row)
SELECT EXTRACT(ISOYEAR FROM DATE 'infinity'); -- Infinity
extract
----------
Infinity
(1 row)
SELECT EXTRACT(EPOCH FROM DATE 'infinity'); -- Infinity
extract
----------
Infinity
(1 row)
--
-- wrong fields from non-finite date:
--
SELECT EXTRACT(MICROSEC FROM DATE 'infinity'); -- error
ERROR: unit "microsec" not recognized for type date
-- test constructors
select make_date(2013, 7, 15);
make_date
------------
07-15-2013
(1 row)
select make_date(-44, 3, 15);
make_date
---------------
03-15-0044 BC
(1 row)
select make_time(8, 20, 0.0);
make_time
-----------
08:20:00
(1 row)
-- should fail
select make_date(0, 7, 15);
ERROR: date field value out of range: 0-07-15
select make_date(2013, 2, 30);
ERROR: date field value out of range: 2013-02-30
select make_date(2013, 13, 1);
ERROR: date field value out of range: 2013-13-01
select make_date(2013, 11, -1);
ERROR: date field value out of range: 2013-11--1
select make_time(10, 55, 100.1);
ERROR: time field value out of range: 10:55:100.1
select make_time(24, 0, 2.1);
ERROR: time field value out of range: 24:00:2.1