1-- 2-- TIMESTAMP 3-- 4 5CREATE TABLE TIMESTAMP_TBL (d1 timestamp(2) without time zone); 6 7-- Test shorthand input values 8-- We can't just "select" the results since they aren't constants; test for 9-- equality instead. We can do that by running the test inside a transaction 10-- block, within which the value of 'now' shouldn't change, and so these 11-- related values shouldn't either. 12 13BEGIN; 14 15INSERT INTO TIMESTAMP_TBL VALUES ('today'); 16INSERT INTO TIMESTAMP_TBL VALUES ('yesterday'); 17INSERT INTO TIMESTAMP_TBL VALUES ('tomorrow'); 18-- time zone should be ignored by this data type 19INSERT INTO TIMESTAMP_TBL VALUES ('tomorrow EST'); 20INSERT INTO TIMESTAMP_TBL VALUES ('tomorrow zulu'); 21 22SELECT count(*) AS One FROM TIMESTAMP_TBL WHERE d1 = timestamp without time zone 'today'; 23SELECT count(*) AS Three FROM TIMESTAMP_TBL WHERE d1 = timestamp without time zone 'tomorrow'; 24SELECT count(*) AS One FROM TIMESTAMP_TBL WHERE d1 = timestamp without time zone 'yesterday'; 25 26COMMIT; 27 28DELETE FROM TIMESTAMP_TBL; 29 30-- Verify that 'now' *does* change over a reasonable interval such as 100 msec, 31-- and that it doesn't change over the same interval within a transaction block 32 33INSERT INTO TIMESTAMP_TBL VALUES ('now'); 34SELECT pg_sleep(0.1); 35 36BEGIN; 37INSERT INTO TIMESTAMP_TBL VALUES ('now'); 38SELECT pg_sleep(0.1); 39INSERT INTO TIMESTAMP_TBL VALUES ('now'); 40SELECT pg_sleep(0.1); 41SELECT count(*) AS two FROM TIMESTAMP_TBL WHERE d1 = timestamp(2) without time zone 'now'; 42SELECT count(d1) AS three, count(DISTINCT d1) AS two FROM TIMESTAMP_TBL; 43COMMIT; 44 45TRUNCATE TIMESTAMP_TBL; 46 47-- Special values 48INSERT INTO TIMESTAMP_TBL VALUES ('-infinity'); 49INSERT INTO TIMESTAMP_TBL VALUES ('infinity'); 50INSERT INTO TIMESTAMP_TBL VALUES ('epoch'); 51-- Obsolete special values 52INSERT INTO TIMESTAMP_TBL VALUES ('invalid'); 53INSERT INTO TIMESTAMP_TBL VALUES ('undefined'); 54INSERT INTO TIMESTAMP_TBL VALUES ('current'); 55 56-- Postgres v6.0 standard output format 57INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01 1997 PST'); 58 59-- Variations on Postgres v6.1 standard output format 60INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01.000001 1997 PST'); 61INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01.999999 1997 PST'); 62INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01.4 1997 PST'); 63INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01.5 1997 PST'); 64INSERT INTO TIMESTAMP_TBL VALUES ('Mon Feb 10 17:32:01.6 1997 PST'); 65 66-- ISO 8601 format 67INSERT INTO TIMESTAMP_TBL VALUES ('1997-01-02'); 68INSERT INTO TIMESTAMP_TBL VALUES ('1997-01-02 03:04:05'); 69INSERT INTO TIMESTAMP_TBL VALUES ('1997-02-10 17:32:01-08'); 70INSERT INTO TIMESTAMP_TBL VALUES ('1997-02-10 17:32:01-0800'); 71INSERT INTO TIMESTAMP_TBL VALUES ('1997-02-10 17:32:01 -08:00'); 72INSERT INTO TIMESTAMP_TBL VALUES ('19970210 173201 -0800'); 73INSERT INTO TIMESTAMP_TBL VALUES ('1997-06-10 17:32:01 -07:00'); 74INSERT INTO TIMESTAMP_TBL VALUES ('2001-09-22T18:19:20'); 75 76-- POSIX format (note that the timezone abbrev is just decoration here) 77INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 08:14:01 GMT+8'); 78INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 13:14:02 GMT-1'); 79INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 12:14:03 GMT-2'); 80INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 03:14:04 PST+8'); 81INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 02:14:05 MST+7:00'); 82 83-- Variations for acceptable input formats 84INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 17:32:01 1997 -0800'); 85INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 17:32:01 1997'); 86INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 5:32PM 1997'); 87INSERT INTO TIMESTAMP_TBL VALUES ('1997/02/10 17:32:01-0800'); 88INSERT INTO TIMESTAMP_TBL VALUES ('1997-02-10 17:32:01 PST'); 89INSERT INTO TIMESTAMP_TBL VALUES ('Feb-10-1997 17:32:01 PST'); 90INSERT INTO TIMESTAMP_TBL VALUES ('02-10-1997 17:32:01 PST'); 91INSERT INTO TIMESTAMP_TBL VALUES ('19970210 173201 PST'); 92set datestyle to ymd; 93INSERT INTO TIMESTAMP_TBL VALUES ('97FEB10 5:32:01PM UTC'); 94INSERT INTO TIMESTAMP_TBL VALUES ('97/02/10 17:32:01 UTC'); 95reset datestyle; 96INSERT INTO TIMESTAMP_TBL VALUES ('1997.041 17:32:01 UTC'); 97INSERT INTO TIMESTAMP_TBL VALUES ('19970210 173201 America/New_York'); 98-- this fails (even though TZ is a no-op, we still look it up) 99INSERT INTO TIMESTAMP_TBL VALUES ('19970710 173201 America/Does_not_exist'); 100 101-- Check date conversion and date arithmetic 102INSERT INTO TIMESTAMP_TBL VALUES ('1997-06-10 18:32:01 PDT'); 103 104INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 17:32:01 1997'); 105INSERT INTO TIMESTAMP_TBL VALUES ('Feb 11 17:32:01 1997'); 106INSERT INTO TIMESTAMP_TBL VALUES ('Feb 12 17:32:01 1997'); 107INSERT INTO TIMESTAMP_TBL VALUES ('Feb 13 17:32:01 1997'); 108INSERT INTO TIMESTAMP_TBL VALUES ('Feb 14 17:32:01 1997'); 109INSERT INTO TIMESTAMP_TBL VALUES ('Feb 15 17:32:01 1997'); 110INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1997'); 111 112INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 0097 BC'); 113INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 0097'); 114INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 0597'); 115INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1097'); 116INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1697'); 117INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1797'); 118INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1897'); 119INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 1997'); 120INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 2097'); 121 122INSERT INTO TIMESTAMP_TBL VALUES ('Feb 28 17:32:01 1996'); 123INSERT INTO TIMESTAMP_TBL VALUES ('Feb 29 17:32:01 1996'); 124INSERT INTO TIMESTAMP_TBL VALUES ('Mar 01 17:32:01 1996'); 125INSERT INTO TIMESTAMP_TBL VALUES ('Dec 30 17:32:01 1996'); 126INSERT INTO TIMESTAMP_TBL VALUES ('Dec 31 17:32:01 1996'); 127INSERT INTO TIMESTAMP_TBL VALUES ('Jan 01 17:32:01 1997'); 128INSERT INTO TIMESTAMP_TBL VALUES ('Feb 28 17:32:01 1997'); 129INSERT INTO TIMESTAMP_TBL VALUES ('Feb 29 17:32:01 1997'); 130INSERT INTO TIMESTAMP_TBL VALUES ('Mar 01 17:32:01 1997'); 131INSERT INTO TIMESTAMP_TBL VALUES ('Dec 30 17:32:01 1997'); 132INSERT INTO TIMESTAMP_TBL VALUES ('Dec 31 17:32:01 1997'); 133INSERT INTO TIMESTAMP_TBL VALUES ('Dec 31 17:32:01 1999'); 134INSERT INTO TIMESTAMP_TBL VALUES ('Jan 01 17:32:01 2000'); 135INSERT INTO TIMESTAMP_TBL VALUES ('Dec 31 17:32:01 2000'); 136INSERT INTO TIMESTAMP_TBL VALUES ('Jan 01 17:32:01 2001'); 137 138-- Currently unsupported syntax and ranges 139INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 -0097'); 140INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 5097 BC'); 141 142SELECT '' AS "64", d1 FROM TIMESTAMP_TBL; 143 144-- Check behavior at the lower boundary of the timestamp range 145SELECT '4714-11-24 00:00:00 BC'::timestamp; 146SELECT '4714-11-23 23:59:59 BC'::timestamp; -- out of range 147-- The upper boundary differs between integer and float timestamps, so no check 148 149-- Demonstrate functions and operators 150SELECT '' AS "48", d1 FROM TIMESTAMP_TBL 151 WHERE d1 > timestamp without time zone '1997-01-02'; 152 153SELECT '' AS "15", d1 FROM TIMESTAMP_TBL 154 WHERE d1 < timestamp without time zone '1997-01-02'; 155 156SELECT '' AS one, d1 FROM TIMESTAMP_TBL 157 WHERE d1 = timestamp without time zone '1997-01-02'; 158 159SELECT '' AS "63", d1 FROM TIMESTAMP_TBL 160 WHERE d1 != timestamp without time zone '1997-01-02'; 161 162SELECT '' AS "16", d1 FROM TIMESTAMP_TBL 163 WHERE d1 <= timestamp without time zone '1997-01-02'; 164 165SELECT '' AS "49", d1 FROM TIMESTAMP_TBL 166 WHERE d1 >= timestamp without time zone '1997-01-02'; 167 168SELECT '' AS "54", d1 - timestamp without time zone '1997-01-02' AS diff 169 FROM TIMESTAMP_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01'; 170 171SELECT '' AS date_trunc_week, date_trunc( 'week', timestamp '2004-02-29 15:44:17.71393' ) AS week_trunc; 172 173-- Test casting within a BETWEEN qualifier 174SELECT '' AS "54", d1 - timestamp without time zone '1997-01-02' AS diff 175 FROM TIMESTAMP_TBL 176 WHERE d1 BETWEEN timestamp without time zone '1902-01-01' 177 AND timestamp without time zone '2038-01-01'; 178 179-- DATE_PART (timestamp_part) 180SELECT d1 as "timestamp", 181 date_part( 'year', d1) AS year, date_part( 'month', d1) AS month, 182 date_part( 'day', d1) AS day, date_part( 'hour', d1) AS hour, 183 date_part( 'minute', d1) AS minute, date_part( 'second', d1) AS second 184 FROM TIMESTAMP_TBL; 185 186SELECT d1 as "timestamp", 187 date_part( 'quarter', d1) AS quarter, date_part( 'msec', d1) AS msec, 188 date_part( 'usec', d1) AS usec 189 FROM TIMESTAMP_TBL; 190 191SELECT d1 as "timestamp", 192 date_part( 'isoyear', d1) AS isoyear, date_part( 'week', d1) AS week, 193 date_part( 'isodow', d1) AS isodow, date_part( 'dow', d1) AS dow, 194 date_part( 'doy', d1) AS doy 195 FROM TIMESTAMP_TBL; 196 197SELECT d1 as "timestamp", 198 date_part( 'decade', d1) AS decade, 199 date_part( 'century', d1) AS century, 200 date_part( 'millennium', d1) AS millennium, 201 round(date_part( 'julian', d1)) AS julian 202 FROM TIMESTAMP_TBL; 203 204-- TO_CHAR() 205SELECT '' AS to_char_1, to_char(d1, 'DAY Day day DY Dy dy MONTH Month month RM MON Mon mon') 206 FROM TIMESTAMP_TBL; 207 208SELECT '' AS to_char_2, to_char(d1, 'FMDAY FMDay FMday FMMONTH FMMonth FMmonth FMRM') 209 FROM TIMESTAMP_TBL; 210 211SELECT '' AS to_char_3, to_char(d1, 'Y,YYY YYYY YYY YY Y CC Q MM WW DDD DD D J') 212 FROM TIMESTAMP_TBL; 213 214SELECT '' AS to_char_4, to_char(d1, 'FMY,YYY FMYYYY FMYYY FMYY FMY FMCC FMQ FMMM FMWW FMDDD FMDD FMD FMJ') 215 FROM TIMESTAMP_TBL; 216 217SELECT '' AS to_char_5, to_char(d1, 'HH HH12 HH24 MI SS SSSS') 218 FROM TIMESTAMP_TBL; 219 220SELECT '' AS to_char_6, to_char(d1, E'"HH:MI:SS is" HH:MI:SS "\\"text between quote marks\\""') 221 FROM TIMESTAMP_TBL; 222 223SELECT '' AS to_char_7, to_char(d1, 'HH24--text--MI--text--SS') 224 FROM TIMESTAMP_TBL; 225 226SELECT '' AS to_char_8, to_char(d1, 'YYYYTH YYYYth Jth') 227 FROM TIMESTAMP_TBL; 228 229SELECT '' 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') 230 FROM TIMESTAMP_TBL; 231 232SELECT '' AS to_char_10, to_char(d1, 'IYYY IYY IY I IW IDDD ID') 233 FROM TIMESTAMP_TBL; 234 235SELECT '' AS to_char_11, to_char(d1, 'FMIYYY FMIYY FMIY FMI FMIW FMIDDD FMID') 236 FROM TIMESTAMP_TBL; 237 238-- Roman months, with upper and lower case. 239SELECT i, 240 to_char(i * interval '1mon', 'rm'), 241 to_char(i * interval '1mon', 'RM') 242 FROM generate_series(-13, 13) i; 243 244-- timestamp numeric fields constructor 245SELECT make_timestamp(2014,12,28,6,30,45.887); 246