diff options
Diffstat (limited to '')
| -rw-r--r-- | src/test/regress/sql/timestamp.sql | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/src/test/regress/sql/timestamp.sql b/src/test/regress/sql/timestamp.sql new file mode 100644 index 0000000..4f014da --- /dev/null +++ b/src/test/regress/sql/timestamp.sql @@ -0,0 +1,249 @@ +-- +-- TIMESTAMP +-- + +CREATE TABLE TIMESTAMP_TBL (d1 timestamp(2) without 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, and so these +-- related values shouldn't either. + +BEGIN; + +INSERT INTO TIMESTAMP_TBL VALUES ('today'); +INSERT INTO TIMESTAMP_TBL VALUES ('yesterday'); +INSERT INTO TIMESTAMP_TBL VALUES ('tomorrow'); +-- time zone should be ignored by this data type +INSERT INTO TIMESTAMP_TBL VALUES ('tomorrow EST'); +INSERT INTO TIMESTAMP_TBL VALUES ('tomorrow zulu'); + +SELECT count(*) AS One FROM TIMESTAMP_TBL WHERE d1 = timestamp without time zone 'today'; +SELECT count(*) AS Three FROM TIMESTAMP_TBL WHERE d1 = timestamp without time zone 'tomorrow'; +SELECT count(*) AS One FROM TIMESTAMP_TBL WHERE d1 = timestamp without time zone 'yesterday'; + +COMMIT; + +DELETE FROM TIMESTAMP_TBL; + +-- Verify that 'now' *does* change over a reasonable interval such as 100 msec, +-- and that it doesn't change over the same interval within a transaction block + +INSERT INTO TIMESTAMP_TBL VALUES ('now'); +SELECT pg_sleep(0.1); + +BEGIN; +INSERT INTO TIMESTAMP_TBL VALUES ('now'); +SELECT pg_sleep(0.1); +INSERT INTO TIMESTAMP_TBL VALUES ('now'); +SELECT pg_sleep(0.1); +SELECT count(*) AS two FROM TIMESTAMP_TBL WHERE d1 = timestamp(2) without time zone 'now'; +SELECT count(d1) AS three, count(DISTINCT d1) AS two FROM TIMESTAMP_TBL; +COMMIT; + +TRUNCATE TIMESTAMP_TBL; + +-- Special values +INSERT INTO TIMESTAMP_TBL VALUES ('-infinity'); +INSERT INTO TIMESTAMP_TBL VALUES ('infinity'); +INSERT INTO TIMESTAMP_TBL VALUES ('epoch'); + +-- Postgres v6.0 standard output format +INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01 1997 PST'); + +-- Variations on Postgres v6.1 standard output format +INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01.000001 1997 PST'); +INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01.999999 1997 PST'); +INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01.4 1997 PST'); +INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01.5 1997 PST'); +INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01.6 1997 PST'); + +-- ISO 8601 format +INSERT INTO TIMESTAMP_TBL VALUES ('1997-01-02'); +INSERT INTO TIMESTAMP_TBL VALUES ('1997-01-02 03:04:05'); +INSERT INTO TIMESTAMP_TBL VALUES ('1997-02-10 17:32:01-08'); +INSERT INTO TIMESTAMP_TBL VALUES ('1997-02-10 17:32:01-0800'); +INSERT INTO TIMESTAMP_TBL VALUES ('1997-02-10 17:32:01 -08:00'); +INSERT INTO TIMESTAMP_TBL VALUES ('19970210 173201 -0800'); +INSERT INTO TIMESTAMP_TBL VALUES ('1997-06-10 17:32:01 -07:00'); +INSERT INTO TIMESTAMP_TBL VALUES ('2001-09-22T18:19:20'); + +-- POSIX format (note that the timezone abbrev is just decoration here) +INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 08:14:01 GMT+8'); +INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 13:14:02 GMT-1'); +INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 12:14:03 GMT-2'); +INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 03:14:04 PST+8'); +INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 02:14:05 MST+7:00'); + +-- Variations for acceptable input formats +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 17:32:01 1997 -0800'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 17:32:01 1997'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 5:32PM 1997'); +INSERT INTO TIMESTAMP_TBL VALUES ('1997/02/10 17:32:01-0800'); +INSERT INTO TIMESTAMP_TBL VALUES ('1997-02-10 17:32:01 PST'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb-10-1997 17:32:01 PST'); +INSERT INTO TIMESTAMP_TBL VALUES ('02-10-1997 17:32:01 PST'); +INSERT INTO TIMESTAMP_TBL VALUES ('19970210 173201 PST'); +set datestyle to ymd; +INSERT INTO TIMESTAMP_TBL VALUES ('97FEB10 5:32:01PM UTC'); +INSERT INTO TIMESTAMP_TBL VALUES ('97/02/10 17:32:01 UTC'); +reset datestyle; +INSERT INTO TIMESTAMP_TBL VALUES ('1997.041 17:32:01 UTC'); +INSERT INTO TIMESTAMP_TBL VALUES ('19970210 173201 America/New_York'); +-- this fails (even though TZ is a no-op, we still look it up) +INSERT INTO TIMESTAMP_TBL VALUES ('19970710 173201 America/Does_not_exist'); + +-- Check date conversion and date arithmetic +INSERT INTO TIMESTAMP_TBL VALUES ('1997-06-10 18:32:01 PDT'); + +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 17:32:01 1997'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 11 17:32:01 1997'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 12 17:32:01 1997'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 13 17:32:01 1997'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 14 17:32:01 1997'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 15 17:32:01 1997'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1997'); + +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 0097 BC'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 0097'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 0597'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1097'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1697'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1797'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1897'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1997'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 2097'); + +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 28 17:32:01 1996'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 29 17:32:01 1996'); +INSERT INTO TIMESTAMP_TBL VALUES ('Mar 01 17:32:01 1996'); +INSERT INTO TIMESTAMP_TBL VALUES ('Dec 30 17:32:01 1996'); +INSERT INTO TIMESTAMP_TBL VALUES ('Dec 31 17:32:01 1996'); +INSERT INTO TIMESTAMP_TBL VALUES ('Jan 01 17:32:01 1997'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 28 17:32:01 1997'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 29 17:32:01 1997'); +INSERT INTO TIMESTAMP_TBL VALUES ('Mar 01 17:32:01 1997'); +INSERT INTO TIMESTAMP_TBL VALUES ('Dec 30 17:32:01 1997'); +INSERT INTO TIMESTAMP_TBL VALUES ('Dec 31 17:32:01 1997'); +INSERT INTO TIMESTAMP_TBL VALUES ('Dec 31 17:32:01 1999'); +INSERT INTO TIMESTAMP_TBL VALUES ('Jan 01 17:32:01 2000'); +INSERT INTO TIMESTAMP_TBL VALUES ('Dec 31 17:32:01 2000'); +INSERT INTO TIMESTAMP_TBL VALUES ('Jan 01 17:32:01 2001'); + +-- Currently unsupported syntax and ranges +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 -0097'); +INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 5097 BC'); + +SELECT '' AS "64", d1 FROM TIMESTAMP_TBL; + +-- Check behavior at the lower boundary of the timestamp range +SELECT '4714-11-24 00:00:00 BC'::timestamp; +SELECT '4714-11-23 23:59:59 BC'::timestamp; -- out of range +-- The upper boundary differs between integer and float timestamps, so no check + +-- Demonstrate functions and operators +SELECT '' AS "48", d1 FROM TIMESTAMP_TBL + WHERE d1 > timestamp without time zone '1997-01-02'; + +SELECT '' AS "15", d1 FROM TIMESTAMP_TBL + WHERE d1 < timestamp without time zone '1997-01-02'; + +SELECT '' AS one, d1 FROM TIMESTAMP_TBL + WHERE d1 = timestamp without time zone '1997-01-02'; + +SELECT '' AS "63", d1 FROM TIMESTAMP_TBL + WHERE d1 != timestamp without time zone '1997-01-02'; + +SELECT '' AS "16", d1 FROM TIMESTAMP_TBL + WHERE d1 <= timestamp without time zone '1997-01-02'; + +SELECT '' AS "49", d1 FROM TIMESTAMP_TBL + WHERE d1 >= timestamp without time zone '1997-01-02'; + +SELECT '' AS "54", d1 - timestamp without time zone '1997-01-02' AS diff + FROM TIMESTAMP_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01'; + +SELECT '' AS date_trunc_week, date_trunc( 'week', timestamp '2004-02-29 15:44:17.71393' ) AS week_trunc; + +-- Test casting within a BETWEEN qualifier +SELECT '' AS "54", d1 - timestamp without time zone '1997-01-02' AS diff + FROM TIMESTAMP_TBL + WHERE d1 BETWEEN timestamp without time zone '1902-01-01' + AND timestamp without time zone '2038-01-01'; + +-- DATE_PART (timestamp_part) +SELECT d1 as "timestamp", + 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 TIMESTAMP_TBL; + +SELECT d1 as "timestamp", + date_part( 'quarter', d1) AS quarter, date_part( 'msec', d1) AS msec, + date_part( 'usec', d1) AS usec + FROM TIMESTAMP_TBL; + +SELECT d1 as "timestamp", + 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 TIMESTAMP_TBL; + +SELECT d1 as "timestamp", + 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 TIMESTAMP_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 TIMESTAMP_TBL; + +SELECT '' AS to_char_2, to_char(d1, 'FMDAY FMDay FMday FMMONTH FMMonth FMmonth FMRM') + FROM TIMESTAMP_TBL; + +SELECT '' AS to_char_3, to_char(d1, 'Y,YYY YYYY YYY YY Y CC Q MM WW DDD DD D J') + FROM TIMESTAMP_TBL; + +SELECT '' AS to_char_4, to_char(d1, 'FMY,YYY FMYYYY FMYYY FMYY FMY FMCC FMQ FMMM FMWW FMDDD FMDD FMD FMJ') + FROM TIMESTAMP_TBL; + +SELECT '' AS to_char_5, to_char(d1, 'HH HH12 HH24 MI SS SSSS') + FROM TIMESTAMP_TBL; + +SELECT '' AS to_char_6, to_char(d1, E'"HH:MI:SS is" HH:MI:SS "\\"text between quote marks\\""') + FROM TIMESTAMP_TBL; + +SELECT '' AS to_char_7, to_char(d1, 'HH24--text--MI--text--SS') + FROM TIMESTAMP_TBL; + +SELECT '' AS to_char_8, to_char(d1, 'YYYYTH YYYYth Jth') + FROM TIMESTAMP_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 TIMESTAMP_TBL; + +SELECT '' AS to_char_10, to_char(d1, 'IYYY IYY IY I IW IDDD ID') + FROM TIMESTAMP_TBL; + +SELECT '' AS to_char_11, to_char(d1, 'FMIYYY FMIYY FMIY FMI FMIW FMIDDD FMID') + FROM TIMESTAMP_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'::timestamp), + ('2018-11-02 12:34:56.78'), + ('2018-11-02 12:34:56.78901'), + ('2018-11-02 12:34:56.78901234') + ) d(d); + +-- Roman months, with upper and lower case. +SELECT i, + to_char(i * interval '1mon', 'rm'), + to_char(i * interval '1mon', 'RM') + FROM generate_series(-13, 13) i; + +-- timestamp numeric fields constructor +SELECT make_timestamp(2014,12,28,6,30,45.887); |