131 lines
4.5 KiB
Plaintext
131 lines
4.5 KiB
Plaintext
--
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-- ABSTIME
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-- testing built-in time type abstime
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-- uses reltime and tinterval
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--
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--
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-- timezones may vary based not only on location but the operating
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-- system. the main correctness issue is that the OS may not get
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-- daylight savings time right for times prior to Unix epoch (jan 1 1970).
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--
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CREATE TABLE ABSTIME_TBL (f1 abstime);
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BEGIN;
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INSERT INTO ABSTIME_TBL (f1) VALUES (abstime 'now');
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INSERT INTO ABSTIME_TBL (f1) VALUES (abstime 'now');
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SELECT count(*) AS two FROM ABSTIME_TBL WHERE f1 = 'now' ;
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two
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-----
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2
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(1 row)
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END;
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DELETE FROM ABSTIME_TBL;
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INSERT INTO ABSTIME_TBL (f1) VALUES ('Jan 14, 1973 03:14:21');
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INSERT INTO ABSTIME_TBL (f1) VALUES (abstime 'Mon May 1 00:30:30 1995');
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INSERT INTO ABSTIME_TBL (f1) VALUES (abstime 'epoch');
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INSERT INTO ABSTIME_TBL (f1) VALUES (abstime 'infinity');
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INSERT INTO ABSTIME_TBL (f1) VALUES (abstime '-infinity');
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INSERT INTO ABSTIME_TBL (f1) VALUES (abstime 'May 10, 1947 23:59:12');
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-- what happens if we specify slightly misformatted abstime?
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INSERT INTO ABSTIME_TBL (f1) VALUES ('Feb 35, 1946 10:00:00');
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ERROR: date/time field value out of range: "Feb 35, 1946 10:00:00"
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HINT: Perhaps you need a different "datestyle" setting.
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INSERT INTO ABSTIME_TBL (f1) VALUES ('Feb 28, 1984 25:08:10');
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ERROR: date/time field value out of range: "Feb 28, 1984 25:08:10"
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-- badly formatted abstimes: these should result in invalid abstimes
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INSERT INTO ABSTIME_TBL (f1) VALUES ('bad date format');
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ERROR: invalid input syntax for type abstime: "bad date format"
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INSERT INTO ABSTIME_TBL (f1) VALUES ('Jun 10, 1843');
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-- test abstime operators
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SELECT '' AS eight, ABSTIME_TBL.*;
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eight | f1
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-------+------------------------------
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| Sun Jan 14 03:14:21 1973 PST
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| Mon May 01 00:30:30 1995 PDT
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| Wed Dec 31 16:00:00 1969 PST
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| infinity
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| -infinity
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| Sat May 10 23:59:12 1947 PDT
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| invalid
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(7 rows)
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SELECT '' AS six, ABSTIME_TBL.*
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WHERE ABSTIME_TBL.f1 < abstime 'Jun 30, 2001';
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six | f1
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-----+------------------------------
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| Sun Jan 14 03:14:21 1973 PST
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| Mon May 01 00:30:30 1995 PDT
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| Wed Dec 31 16:00:00 1969 PST
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| -infinity
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| Sat May 10 23:59:12 1947 PDT
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(5 rows)
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SELECT '' AS six, ABSTIME_TBL.*
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WHERE ABSTIME_TBL.f1 > abstime '-infinity';
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six | f1
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-----+------------------------------
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| Sun Jan 14 03:14:21 1973 PST
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| Mon May 01 00:30:30 1995 PDT
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| Wed Dec 31 16:00:00 1969 PST
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| infinity
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| Sat May 10 23:59:12 1947 PDT
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| invalid
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(6 rows)
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SELECT '' AS six, ABSTIME_TBL.*
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WHERE abstime 'May 10, 1947 23:59:12' <> ABSTIME_TBL.f1;
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six | f1
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-----+------------------------------
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| Sun Jan 14 03:14:21 1973 PST
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| Mon May 01 00:30:30 1995 PDT
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| Wed Dec 31 16:00:00 1969 PST
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| infinity
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| -infinity
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| invalid
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(6 rows)
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SELECT '' AS three, ABSTIME_TBL.*
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WHERE abstime 'epoch' >= ABSTIME_TBL.f1;
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three | f1
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-------+------------------------------
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| Wed Dec 31 16:00:00 1969 PST
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| -infinity
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| Sat May 10 23:59:12 1947 PDT
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(3 rows)
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SELECT '' AS four, ABSTIME_TBL.*
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WHERE ABSTIME_TBL.f1 <= abstime 'Jan 14, 1973 03:14:21';
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four | f1
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------+------------------------------
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| Sun Jan 14 03:14:21 1973 PST
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| Wed Dec 31 16:00:00 1969 PST
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| -infinity
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| Sat May 10 23:59:12 1947 PDT
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(4 rows)
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SELECT '' AS four, ABSTIME_TBL.*
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WHERE ABSTIME_TBL.f1 <?>
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tinterval '["Apr 1 1950 00:00:00" "Dec 30 1999 23:00:00"]';
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four | f1
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------+------------------------------
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| Sun Jan 14 03:14:21 1973 PST
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| Mon May 01 00:30:30 1995 PDT
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| Wed Dec 31 16:00:00 1969 PST
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(3 rows)
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SELECT '' AS four, f1 AS abstime,
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date_part('year', f1) AS year, date_part('month', f1) AS month,
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date_part('day',f1) AS day, date_part('hour', f1) AS hour,
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date_part('minute', f1) AS minute, date_part('second', f1) AS second
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FROM ABSTIME_TBL
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WHERE isfinite(f1)
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ORDER BY abstime;
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four | abstime | year | month | day | hour | minute | second
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------+------------------------------+------+-------+-----+------+--------+--------
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| Sat May 10 23:59:12 1947 PDT | 1947 | 5 | 10 | 23 | 59 | 12
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| Wed Dec 31 16:00:00 1969 PST | 1969 | 12 | 31 | 16 | 0 | 0
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| Sun Jan 14 03:14:21 1973 PST | 1973 | 1 | 14 | 3 | 14 | 21
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| Mon May 01 00:30:30 1995 PDT | 1995 | 5 | 1 | 0 | 30 | 30
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(4 rows)
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