-- *** testing new built-in time types: datetime, timespan *** -- Shorthand values -- Not directly usable for regression testing since these are not constants. -- So, just try to test parser and hope for the best - tgl 97/04/26 SELECT ('today'::datetime = ('yesterday'::datetime + '1 day'::timespan)) as "True"; SELECT ('today'::datetime = ('tomorrow'::datetime - '1 day'::timespan)) as "True"; SELECT ('tomorrow'::datetime = ('yesterday'::datetime + '2 days'::timespan)) as "True"; SELECT ('current'::datetime = 'now'::datetime) as "True"; SELECT ('now'::datetime - 'current'::datetime) AS "ZeroSecs"; SET DateStyle = 'Postgres,noneuropean'; SELECT datetime('1994-01-01', '11:00') AS "Jan_01_1994_11am"; CREATE TABLE DATETIME_TBL( d1 datetime); INSERT INTO DATETIME_TBL VALUES ('current'); INSERT INTO DATETIME_TBL VALUES ('today'); INSERT INTO DATETIME_TBL VALUES ('yesterday'); INSERT INTO DATETIME_TBL VALUES ('tomorrow'); INSERT INTO DATETIME_TBL VALUES ('tomorrow EST'); INSERT INTO DATETIME_TBL VALUES ('tomorrow zulu'); SELECT count(*) AS one FROM DATETIME_TBL WHERE d1 = 'today'::datetime; SELECT count(*) AS one FROM DATETIME_TBL WHERE d1 = 'tomorrow'::datetime; SELECT count(*) AS one FROM DATETIME_TBL WHERE d1 = 'yesterday'::datetime; SELECT count(*) AS one FROM DATETIME_TBL WHERE d1 = 'today'::datetime + '1 day'::timespan; SELECT count(*) AS one FROM DATETIME_TBL WHERE d1 = 'today'::datetime - '1 day'::timespan; SELECT count(*) AS one FROM DATETIME_TBL WHERE d1 = 'now'::datetime; DELETE FROM DATETIME_TBL; -- verify uniform transaction time within transaction block INSERT INTO DATETIME_TBL VALUES ('current'); BEGIN; INSERT INTO DATETIME_TBL VALUES ('now'); SELECT count(*) AS two FROM DATETIME_TBL WHERE d1 = 'now'::datetime; END; DELETE FROM DATETIME_TBL; -- Special values INSERT INTO DATETIME_TBL VALUES ('invalid'); INSERT INTO DATETIME_TBL VALUES ('-infinity'); INSERT INTO DATETIME_TBL VALUES ('infinity'); INSERT INTO DATETIME_TBL VALUES ('epoch'); -- Postgres v6.0 standard output format INSERT INTO DATETIME_TBL VALUES ('Mon Feb 10 17:32:01 1997 PST'); INSERT INTO DATETIME_TBL VALUES ('Invalid Abstime'); INSERT INTO DATETIME_TBL VALUES ('Undefined Abstime'); -- Variations on Postgres v6.1 standard output format INSERT INTO DATETIME_TBL VALUES ('Mon Feb 10 17:32:01.000001 1997 PST'); INSERT INTO DATETIME_TBL VALUES ('Mon Feb 10 17:32:01.999999 1997 PST'); INSERT INTO DATETIME_TBL VALUES ('Mon Feb 10 17:32:01.4 1997 PST'); INSERT INTO DATETIME_TBL VALUES ('Mon Feb 10 17:32:01.5 1997 PST'); INSERT INTO DATETIME_TBL VALUES ('Mon Feb 10 17:32:01.6 1997 PST'); -- ISO 8601 format INSERT INTO DATETIME_TBL VALUES ('1997-01-02'); INSERT INTO DATETIME_TBL VALUES ('1997-01-02 03:04:05'); INSERT INTO DATETIME_TBL VALUES ('1997-02-10 17:32:01-08'); INSERT INTO DATETIME_TBL VALUES ('1997-02-10 17:32:01-0800'); INSERT INTO DATETIME_TBL VALUES ('1997-02-10 17:32:01 -08:00'); INSERT INTO DATETIME_TBL VALUES ('19970210 173201 -0800'); INSERT INTO DATETIME_TBL VALUES ('1997-06-10 17:32:01 -07:00'); -- Variations for acceptable input formats INSERT INTO DATETIME_TBL VALUES ('Feb 10 17:32:01 1997 -0800'); INSERT INTO DATETIME_TBL VALUES ('Feb 10 17:32:01 1997'); INSERT INTO DATETIME_TBL VALUES ('Feb 10 5:32PM 1997'); INSERT INTO DATETIME_TBL VALUES ('1997/02/10 17:32:01-0800'); INSERT INTO DATETIME_TBL VALUES ('1997-02-10 17:32:01 PST'); INSERT INTO DATETIME_TBL VALUES ('Feb-10-1997 17:32:01 PST'); INSERT INTO DATETIME_TBL VALUES ('02-10-1997 17:32:01 PST'); INSERT INTO DATETIME_TBL VALUES ('19970210 173201 PST'); INSERT INTO DATETIME_TBL VALUES ('97FEB10 5:32:01PM UTC'); INSERT INTO DATETIME_TBL VALUES ('97/02/10 17:32:01 UTC'); INSERT INTO DATETIME_TBL VALUES ('97.041 17:32:01 UTC'); -- Check date conversion and date arithmetic INSERT INTO DATETIME_TBL VALUES ('1997-06-10 18:32:01 PDT'); INSERT INTO DATETIME_TBL VALUES ('Feb 10 17:32:01 1997'); INSERT INTO DATETIME_TBL VALUES ('Feb 11 17:32:01 1997'); INSERT INTO DATETIME_TBL VALUES ('Feb 12 17:32:01 1997'); INSERT INTO DATETIME_TBL VALUES ('Feb 13 17:32:01 1997'); INSERT INTO DATETIME_TBL VALUES ('Feb 14 17:32:01 1997'); INSERT INTO DATETIME_TBL VALUES ('Feb 15 17:32:01 1997'); INSERT INTO DATETIME_TBL VALUES ('Feb 16 17:32:01 1997'); INSERT INTO DATETIME_TBL VALUES ('Feb 16 17:32:01 0097 BC'); INSERT INTO DATETIME_TBL VALUES ('Feb 16 17:32:01 0097'); INSERT INTO DATETIME_TBL VALUES ('Feb 16 17:32:01 0597'); INSERT INTO DATETIME_TBL VALUES ('Feb 16 17:32:01 1097'); INSERT INTO DATETIME_TBL VALUES ('Feb 16 17:32:01 1697'); INSERT INTO DATETIME_TBL VALUES ('Feb 16 17:32:01 1797'); INSERT INTO DATETIME_TBL VALUES ('Feb 16 17:32:01 1897'); INSERT INTO DATETIME_TBL VALUES ('Feb 16 17:32:01 1997'); INSERT INTO DATETIME_TBL VALUES ('Feb 16 17:32:01 2097'); INSERT INTO DATETIME_TBL VALUES ('Feb 28 17:32:01 1996'); INSERT INTO DATETIME_TBL VALUES ('Feb 29 17:32:01 1996'); INSERT INTO DATETIME_TBL VALUES ('Mar 01 17:32:01 1996'); INSERT INTO DATETIME_TBL VALUES ('Dec 30 17:32:01 1996'); INSERT INTO DATETIME_TBL VALUES ('Dec 31 17:32:01 1996'); INSERT INTO DATETIME_TBL VALUES ('Jan 01 17:32:01 1997'); INSERT INTO DATETIME_TBL VALUES ('Feb 28 17:32:01 1997'); INSERT INTO DATETIME_TBL VALUES ('Feb 29 17:32:01 1997'); INSERT INTO DATETIME_TBL VALUES ('Mar 01 17:32:01 1997'); INSERT INTO DATETIME_TBL VALUES ('Dec 30 17:32:01 1997'); INSERT INTO DATETIME_TBL VALUES ('Dec 31 17:32:01 1997'); INSERT INTO DATETIME_TBL VALUES ('Dec 31 17:32:01 1999'); INSERT INTO DATETIME_TBL VALUES ('Jan 01 17:32:01 2000'); INSERT INTO DATETIME_TBL VALUES ('Dec 31 17:32:01 2000'); INSERT INTO DATETIME_TBL VALUES ('Jan 01 17:32:01 2001'); -- Currently unsupported syntax and ranges INSERT INTO DATETIME_TBL VALUES ('Feb 16 17:32:01 -0097'); INSERT INTO DATETIME_TBL VALUES ('Feb 16 17:32:01 5097 BC'); SELECT '' AS sixtythree, d1 FROM DATETIME_TBL; -- Demonstrate functions and operators SELECT '' AS fortythree, d1 FROM DATETIME_TBL WHERE d1 > '1997-01-02'::datetime and d1 != 'current'::datetime; SELECT '' AS fifteen, d1 FROM DATETIME_TBL WHERE d1 < '1997-01-02'::datetime and d1 != 'current'::datetime; SELECT '' AS one, d1 FROM DATETIME_TBL WHERE d1 = '1997-01-02'::datetime and d1 != 'current'::datetime; SELECT '' AS fiftyeight, d1 FROM DATETIME_TBL WHERE d1 != '1997-01-02'::datetime and d1 != 'current'::datetime; SELECT '' AS sixteen, d1 FROM DATETIME_TBL WHERE d1 SELECT '' AS fortyfour, d1 FROM DATETIME_TBL WHERE d1 >= '1997-01-02'::datetime and d1 != 'current'::datetime; SELECT '' AS sixtythree, d1 + '1 year'::timespan AS one_year FROM DATETIME_TBL; SELECT '' AS sixtythree, d1 - '1 year'::timespan AS one_year FROM DATETIME_TBL; -- Casting within a BETWEEN qualifier should probably be allowed by the parser. - tgl 97/04/26 --SELECT '' AS fifty, d1 - '1997-01-02'::datetime AS diff -- FROM DATETIME_TBL WHERE d1 BETWEEN '1902-01-01'::datetime AND '2038-01-01'::datetime; SELECT '' AS fifty, d1 - '1997-01-02'::datetime AS diff FROM DATETIME_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01'; SELECT '' AS fortynine, 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 DATETIME_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01'; SELECT '' AS fortynine, date_part( 'quarter', d1) AS quarter, date_part( 'msec', d1) AS msec, date_part( 'usec', d1) AS usec FROM DATETIME_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01';
