239 lines
10 KiB
PL/PgSQL
239 lines
10 KiB
PL/PgSQL
--
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-- DATETIME
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--
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-- Shorthand values
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-- Not directly usable for regression testing since these are not constants.
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-- So, just try to test parser and hope for the best - thomas 97/04/26
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SELECT (timestamp 'today' = (timestamp 'yesterday' + interval '1 day')) as "True";
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SELECT (timestamp 'today' = (timestamp 'tomorrow' - interval '1 day')) as "True";
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SELECT (timestamp 'tomorrow' = (timestamp 'yesterday' + interval '2 days')) as "True";
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SELECT (timestamp 'current' = 'now') as "True";
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SELECT (timestamp 'now' - 'current') AS "ZeroSecs";
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SET DateStyle = 'Postgres,NonEuropean';
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SELECT timestamp(date '1994-01-01', time '11:00') AS "Jan_01_1994_11am";
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SELECT timestamp(date '1994-01-01', time '10:00') AS "Jan_01_1994_10am";
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SELECT timestamp(date '1994-01-01', time with time zone '11:00-5') AS "Jan_01_1994_8am";
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CREATE TABLE TIMESTAMP_TBL ( d1 timestamp);
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INSERT INTO TIMESTAMP_TBL VALUES ('current');
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INSERT INTO TIMESTAMP_TBL VALUES ('today');
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INSERT INTO TIMESTAMP_TBL VALUES ('yesterday');
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INSERT INTO TIMESTAMP_TBL VALUES ('tomorrow');
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INSERT INTO TIMESTAMP_TBL VALUES ('tomorrow EST');
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INSERT INTO TIMESTAMP_TBL VALUES ('tomorrow zulu');
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SELECT count(*) AS one FROM TIMESTAMP_TBL WHERE d1 = timestamp 'today';
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SELECT count(*) AS one FROM TIMESTAMP_TBL WHERE d1 = timestamp 'tomorrow';
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SELECT count(*) AS one FROM TIMESTAMP_TBL WHERE d1 = timestamp 'yesterday';
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SELECT count(*) AS one FROM TIMESTAMP_TBL WHERE d1 = timestamp 'today' + interval '1 day';
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SELECT count(*) AS one FROM TIMESTAMP_TBL WHERE d1 = timestamp 'today' - interval '1 day';
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SELECT count(*) AS one FROM TIMESTAMP_TBL WHERE d1 = timestamp 'now';
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DELETE FROM TIMESTAMP_TBL;
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-- verify uniform transaction time within transaction block
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INSERT INTO TIMESTAMP_TBL VALUES ('current');
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BEGIN;
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INSERT INTO TIMESTAMP_TBL VALUES ('now');
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SELECT count(*) AS two FROM TIMESTAMP_TBL WHERE d1 = timestamp 'now';
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END;
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DELETE FROM TIMESTAMP_TBL;
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-- Special values
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INSERT INTO TIMESTAMP_TBL VALUES ('invalid');
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INSERT INTO TIMESTAMP_TBL VALUES ('-infinity');
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INSERT INTO TIMESTAMP_TBL VALUES ('infinity');
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INSERT INTO TIMESTAMP_TBL VALUES ('epoch');
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-- Postgres v6.0 standard output format
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INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01 1997 PST');
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INSERT INTO TIMESTAMP_TBL VALUES ('Invalid Abstime');
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INSERT INTO TIMESTAMP_TBL VALUES ('Undefined Abstime');
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-- Variations on Postgres v6.1 standard output format
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INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01.000001 1997 PST');
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INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01.999999 1997 PST');
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INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01.4 1997 PST');
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INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01.5 1997 PST');
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INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01.6 1997 PST');
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-- ISO 8601 format
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INSERT INTO TIMESTAMP_TBL VALUES ('1997-01-02');
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INSERT INTO TIMESTAMP_TBL VALUES ('1997-01-02 03:04:05');
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INSERT INTO TIMESTAMP_TBL VALUES ('1997-02-10 17:32:01-08');
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INSERT INTO TIMESTAMP_TBL VALUES ('1997-02-10 17:32:01-0800');
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INSERT INTO TIMESTAMP_TBL VALUES ('1997-02-10 17:32:01 -08:00');
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INSERT INTO TIMESTAMP_TBL VALUES ('19970210 173201 -0800');
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INSERT INTO TIMESTAMP_TBL VALUES ('1997-06-10 17:32:01 -07:00');
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-- POSIX format
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INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 08:14:01 GMT+8');
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INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 13:14:02 GMT-1');
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INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 12:14:03 GMT -2');
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INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 03:14:04 EST+3');
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INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 02:14:05 EST +2:00');
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-- Variations for acceptable input formats
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 17:32:01 1997 -0800');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 17:32:01 1997');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 5:32PM 1997');
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INSERT INTO TIMESTAMP_TBL VALUES ('1997/02/10 17:32:01-0800');
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INSERT INTO TIMESTAMP_TBL VALUES ('1997-02-10 17:32:01 PST');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb-10-1997 17:32:01 PST');
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INSERT INTO TIMESTAMP_TBL VALUES ('02-10-1997 17:32:01 PST');
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INSERT INTO TIMESTAMP_TBL VALUES ('19970210 173201 PST');
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INSERT INTO TIMESTAMP_TBL VALUES ('97FEB10 5:32:01PM UTC');
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INSERT INTO TIMESTAMP_TBL VALUES ('97/02/10 17:32:01 UTC');
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INSERT INTO TIMESTAMP_TBL VALUES ('97.041 17:32:01 UTC');
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-- Check date conversion and date arithmetic
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INSERT INTO TIMESTAMP_TBL VALUES ('1997-06-10 18:32:01 PDT');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 17:32:01 1997');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 11 17:32:01 1997');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 12 17:32:01 1997');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 13 17:32:01 1997');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 14 17:32:01 1997');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 15 17:32:01 1997');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1997');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 0097 BC');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 0097');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 0597');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1097');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1697');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1797');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1897');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1997');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 2097');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 28 17:32:01 1996');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 29 17:32:01 1996');
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INSERT INTO TIMESTAMP_TBL VALUES ('Mar 01 17:32:01 1996');
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INSERT INTO TIMESTAMP_TBL VALUES ('Dec 30 17:32:01 1996');
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INSERT INTO TIMESTAMP_TBL VALUES ('Dec 31 17:32:01 1996');
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INSERT INTO TIMESTAMP_TBL VALUES ('Jan 01 17:32:01 1997');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 28 17:32:01 1997');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 29 17:32:01 1997');
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INSERT INTO TIMESTAMP_TBL VALUES ('Mar 01 17:32:01 1997');
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INSERT INTO TIMESTAMP_TBL VALUES ('Dec 30 17:32:01 1997');
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INSERT INTO TIMESTAMP_TBL VALUES ('Dec 31 17:32:01 1997');
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INSERT INTO TIMESTAMP_TBL VALUES ('Dec 31 17:32:01 1999');
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INSERT INTO TIMESTAMP_TBL VALUES ('Jan 01 17:32:01 2000');
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INSERT INTO TIMESTAMP_TBL VALUES ('Dec 31 17:32:01 2000');
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INSERT INTO TIMESTAMP_TBL VALUES ('Jan 01 17:32:01 2001');
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-- Currently unsupported syntax and ranges
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 -0097');
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INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 5097 BC');
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SELECT '' AS "66", d1 FROM TIMESTAMP_TBL;
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-- Demonstrate functions and operators
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SELECT '' AS "47", d1 FROM TIMESTAMP_TBL
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WHERE d1 > timestamp '1997-01-02' and d1 != timestamp 'current';
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SELECT '' AS "15", d1 FROM TIMESTAMP_TBL
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WHERE d1 < timestamp '1997-01-02' and d1 != timestamp 'current';
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SELECT '' AS one, d1 FROM TIMESTAMP_TBL
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WHERE d1 = timestamp '1997-01-02' and d1 != timestamp 'current';
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SELECT '' AS "62", d1 FROM TIMESTAMP_TBL
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WHERE d1 != timestamp '1997-01-02' and d1 != timestamp 'current';
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SELECT '' AS "16", d1 FROM TIMESTAMP_TBL
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WHERE d1 <= timestamp '1997-01-02' and d1 != timestamp 'current';
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SELECT '' AS "48", d1 FROM TIMESTAMP_TBL
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WHERE d1 >= timestamp '1997-01-02' and d1 != timestamp 'current';
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SELECT '' AS "66", d1 + interval '1 year' AS one_year FROM TIMESTAMP_TBL;
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SELECT '' AS "66", d1 - interval '1 year' AS one_year FROM TIMESTAMP_TBL;
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SELECT '' AS "53", d1 - timestamp '1997-01-02' AS diff
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FROM TIMESTAMP_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01';
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-- Test casting within a BETWEEN qualifier
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SELECT '' AS "53", d1 - timestamp '1997-01-02' AS diff
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FROM TIMESTAMP_TBL
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WHERE d1 BETWEEN timestamp '1902-01-01' AND timestamp '2038-01-01';
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SELECT '' AS "53", date_part( 'year', d1) AS year, date_part( 'month', d1) AS month,
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date_part( 'day', d1) AS day, date_part( 'hour', d1) AS hour,
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date_part( 'minute', d1) AS minute, date_part( 'second', d1) AS second
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FROM TIMESTAMP_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01';
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SELECT '' AS "53", date_part( 'quarter', d1) AS quarter, date_part( 'msec', d1) AS msec,
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date_part( 'usec', d1) AS usec
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FROM TIMESTAMP_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01';
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-- TO_CHAR()
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--
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SELECT '' AS to_char_1, to_char(d1, 'DAY Day day DY Dy dy MONTH Month month RM MON Mon mon')
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FROM TIMESTAMP_TBL;
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SELECT '' AS to_char_2, to_char(d1, 'FMDAY FMDay FMday FMMONTH FMMonth FMmonth FMRM')
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FROM TIMESTAMP_TBL;
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SELECT '' AS to_char_3, to_char(d1, 'Y,YYY YYYY YYY YY Y CC Q MM WW DDD DD D J')
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FROM TIMESTAMP_TBL;
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SELECT '' AS to_char_4, to_char(d1, 'FMY,YYY FMYYYY FMYYY FMYY FMY FMCC FMQ FMMM FMWW FMDDD FMDD FMD FMJ')
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FROM TIMESTAMP_TBL;
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SELECT '' AS to_char_5, to_char(d1, 'HH HH12 HH24 MI SS SSSS')
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FROM TIMESTAMP_TBL;
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SELECT '' AS to_char_6, to_char(d1, '"HH:MI:SS is" HH:MI:SS "\\"text bettween quote marks\\""')
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FROM TIMESTAMP_TBL;
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SELECT '' AS to_char_7, to_char(d1, 'HH24--text--MI--text--SS')
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FROM TIMESTAMP_TBL;
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SELECT '' AS to_char_8, to_char(d1, 'YYYYTH YYYYth Jth')
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FROM TIMESTAMP_TBL;
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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')
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FROM TIMESTAMP_TBL;
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-- TO_TIMESTAMP()
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--
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SELECT '' AS to_timestamp_1, to_timestamp('0097/Feb/16 --> 08:14:30', 'YYYY/Mon/DD --> HH:MI:SS');
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SELECT '' AS to_timestamp_2, to_timestamp('97/2/16 8:14:30', 'FMYYYY/FMMM/FMDD FMHH:FMMI:FMSS');
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SELECT '' AS to_timestamp_3, to_timestamp('1985 January 12', 'YYYY FMMonth DD');
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SELECT '' AS to_timestamp_4, to_timestamp('My birthday-> Year: 1976, Month: May, Day: 16',
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'"My birthday-> Year" YYYY, "Month:" FMMonth, "Day:" DD');
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SELECT '' AS to_timestamp_5, to_timestamp('1,582nd VIII 21', 'Y,YYYth FMRM DD');
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SELECT '' AS to_timestamp_6, to_timestamp('15 "text bettween quote marks" 98 54 45',
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'HH "\\text bettween quote marks\\"" YY MI SS');
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SELECT '' AS to_timestamp_7, to_timestamp('05121445482000', 'MMDDHHMISSYYYY');
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SELECT '' AS to_timestamp_8, to_timestamp('2000January09Sunday', 'YYYYFMMonthDDFMDay');
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SELECT '' AS to_timestamp_9, to_timestamp('97/Feb/16', 'YYMonDD');
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SELECT '' AS to_timestamp_10, to_timestamp('19971116', 'YYYYMMDD');
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SELECT '' AS to_timestamp_11, to_timestamp('20000-1116', 'YYYY-MMDD');
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SELECT '' AS to_timestamp_12, to_timestamp('9-1116', 'Y-MMDD');
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SELECT '' AS to_timestamp_13, to_timestamp('95-1116', 'YY-MMDD');
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SELECT '' AS to_timestamp_14, to_timestamp('995-1116', 'YYY-MMDD');
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SET DateStyle TO DEFAULT;
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