| -- |
| -- DATE |
| -- |
| CREATE TABLE DATE_TBL (f1 date); |
| INSERT INTO DATE_TBL VALUES ('1957-04-09'); |
| INSERT INTO DATE_TBL VALUES ('1957-06-13'); |
| INSERT INTO DATE_TBL VALUES ('1996-02-28'); |
| INSERT INTO DATE_TBL VALUES ('1996-02-29'); |
| INSERT INTO DATE_TBL VALUES ('1996-03-01'); |
| INSERT INTO DATE_TBL VALUES ('1996-03-02'); |
| INSERT INTO DATE_TBL VALUES ('1997-02-28'); |
| INSERT INTO DATE_TBL VALUES ('1997-02-29'); |
| ERROR: date/time field value out of range: "1997-02-29" |
| LINE 1: INSERT INTO DATE_TBL VALUES ('1997-02-29'); |
| ^ |
| INSERT INTO DATE_TBL VALUES ('1997-03-01'); |
| INSERT INTO DATE_TBL VALUES ('1997-03-02'); |
| INSERT INTO DATE_TBL VALUES ('2000-04-01'); |
| INSERT INTO DATE_TBL VALUES ('2000-04-02'); |
| INSERT INTO DATE_TBL VALUES ('2000-04-03'); |
| INSERT INTO DATE_TBL VALUES ('2038-04-08'); |
| INSERT INTO DATE_TBL VALUES ('2039-04-09'); |
| INSERT INTO DATE_TBL VALUES ('2040-04-10'); |
| INSERT INTO DATE_TBL VALUES ('2040-04-10 BC'); |
| SELECT f1 FROM DATE_TBL; |
| f1 |
| --------------- |
| 04-09-1957 |
| 06-13-1957 |
| 02-28-1996 |
| 02-29-1996 |
| 03-01-1996 |
| 03-02-1996 |
| 02-28-1997 |
| 03-01-1997 |
| 03-02-1997 |
| 04-01-2000 |
| 04-02-2000 |
| 04-03-2000 |
| 04-08-2038 |
| 04-09-2039 |
| 04-10-2040 |
| 04-10-2040 BC |
| (16 rows) |
| |
| SELECT f1 FROM DATE_TBL WHERE f1 < '2000-01-01'; |
| f1 |
| --------------- |
| 04-09-1957 |
| 06-13-1957 |
| 02-28-1996 |
| 02-29-1996 |
| 03-01-1996 |
| 03-02-1996 |
| 02-28-1997 |
| 03-01-1997 |
| 03-02-1997 |
| 04-10-2040 BC |
| (10 rows) |
| |
| SELECT f1 FROM DATE_TBL |
| WHERE f1 BETWEEN '2000-01-01' AND '2001-01-01'; |
| f1 |
| ------------ |
| 04-01-2000 |
| 04-02-2000 |
| 04-03-2000 |
| (3 rows) |
| |
| -- |
| -- Check all the documented input formats |
| -- |
| SET datestyle TO iso; -- display results in ISO |
| SET datestyle TO ymd; |
| SELECT date 'January 8, 1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '1999-01-08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '1999-01-18'; |
| date |
| ------------ |
| 1999-01-18 |
| (1 row) |
| |
| SELECT date '1/8/1999'; |
| ERROR: date/time field value out of range: "1/8/1999" |
| LINE 1: SELECT date '1/8/1999'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '1/18/1999'; |
| ERROR: date/time field value out of range: "1/18/1999" |
| LINE 1: SELECT date '1/18/1999'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '18/1/1999'; |
| ERROR: date/time field value out of range: "18/1/1999" |
| LINE 1: SELECT date '18/1/1999'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '01/02/03'; |
| date |
| ------------ |
| 2001-02-03 |
| (1 row) |
| |
| SELECT date '19990108'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '990108'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '1999.008'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date 'J2451187'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date 'January 8, 99 BC'; |
| ERROR: date/time field value out of range: "January 8, 99 BC" |
| LINE 1: SELECT date 'January 8, 99 BC'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '99-Jan-08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '1999-Jan-08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08-Jan-99'; |
| ERROR: date/time field value out of range: "08-Jan-99" |
| LINE 1: SELECT date '08-Jan-99'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '08-Jan-1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date 'Jan-08-99'; |
| ERROR: date/time field value out of range: "Jan-08-99" |
| LINE 1: SELECT date 'Jan-08-99'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date 'Jan-08-1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '99-08-Jan'; |
| ERROR: invalid input syntax for type date: "99-08-Jan" |
| LINE 1: SELECT date '99-08-Jan'; |
| ^ |
| SELECT date '1999-08-Jan'; |
| ERROR: invalid input syntax for type date: "1999-08-Jan" |
| LINE 1: SELECT date '1999-08-Jan'; |
| ^ |
| SELECT date '99 Jan 08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '1999 Jan 08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08 Jan 99'; |
| ERROR: date/time field value out of range: "08 Jan 99" |
| LINE 1: SELECT date '08 Jan 99'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '08 Jan 1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date 'Jan 08 99'; |
| ERROR: date/time field value out of range: "Jan 08 99" |
| LINE 1: SELECT date 'Jan 08 99'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date 'Jan 08 1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '99 08 Jan'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '1999 08 Jan'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '99-01-08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '1999-01-08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08-01-99'; |
| ERROR: date/time field value out of range: "08-01-99" |
| LINE 1: SELECT date '08-01-99'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '08-01-1999'; |
| ERROR: date/time field value out of range: "08-01-1999" |
| LINE 1: SELECT date '08-01-1999'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '01-08-99'; |
| ERROR: date/time field value out of range: "01-08-99" |
| LINE 1: SELECT date '01-08-99'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '01-08-1999'; |
| ERROR: date/time field value out of range: "01-08-1999" |
| LINE 1: SELECT date '01-08-1999'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '99-08-01'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| SELECT date '1999-08-01'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| SELECT date '99 01 08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '1999 01 08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08 01 99'; |
| ERROR: date/time field value out of range: "08 01 99" |
| LINE 1: SELECT date '08 01 99'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '08 01 1999'; |
| ERROR: date/time field value out of range: "08 01 1999" |
| LINE 1: SELECT date '08 01 1999'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '01 08 99'; |
| ERROR: date/time field value out of range: "01 08 99" |
| LINE 1: SELECT date '01 08 99'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '01 08 1999'; |
| ERROR: date/time field value out of range: "01 08 1999" |
| LINE 1: SELECT date '01 08 1999'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '99 08 01'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| SELECT date '1999 08 01'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| SET datestyle TO dmy; |
| SELECT date 'January 8, 1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '1999-01-08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '1999-01-18'; |
| date |
| ------------ |
| 1999-01-18 |
| (1 row) |
| |
| SELECT date '1/8/1999'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| SELECT date '1/18/1999'; |
| ERROR: date/time field value out of range: "1/18/1999" |
| LINE 1: SELECT date '1/18/1999'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '18/1/1999'; |
| date |
| ------------ |
| 1999-01-18 |
| (1 row) |
| |
| SELECT date '01/02/03'; |
| date |
| ------------ |
| 2003-02-01 |
| (1 row) |
| |
| SELECT date '19990108'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '990108'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '1999.008'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date 'J2451187'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date 'January 8, 99 BC'; |
| date |
| --------------- |
| 0099-01-08 BC |
| (1 row) |
| |
| SELECT date '99-Jan-08'; |
| ERROR: date/time field value out of range: "99-Jan-08" |
| LINE 1: SELECT date '99-Jan-08'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '1999-Jan-08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08-Jan-99'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08-Jan-1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date 'Jan-08-99'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date 'Jan-08-1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '99-08-Jan'; |
| ERROR: invalid input syntax for type date: "99-08-Jan" |
| LINE 1: SELECT date '99-08-Jan'; |
| ^ |
| SELECT date '1999-08-Jan'; |
| ERROR: invalid input syntax for type date: "1999-08-Jan" |
| LINE 1: SELECT date '1999-08-Jan'; |
| ^ |
| SELECT date '99 Jan 08'; |
| ERROR: date/time field value out of range: "99 Jan 08" |
| LINE 1: SELECT date '99 Jan 08'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '1999 Jan 08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08 Jan 99'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08 Jan 1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date 'Jan 08 99'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date 'Jan 08 1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '99 08 Jan'; |
| ERROR: invalid input syntax for type date: "99 08 Jan" |
| LINE 1: SELECT date '99 08 Jan'; |
| ^ |
| SELECT date '1999 08 Jan'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '99-01-08'; |
| ERROR: date/time field value out of range: "99-01-08" |
| LINE 1: SELECT date '99-01-08'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '1999-01-08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08-01-99'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08-01-1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '01-08-99'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| SELECT date '01-08-1999'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| SELECT date '99-08-01'; |
| ERROR: date/time field value out of range: "99-08-01" |
| LINE 1: SELECT date '99-08-01'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '1999-08-01'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| SELECT date '99 01 08'; |
| ERROR: date/time field value out of range: "99 01 08" |
| LINE 1: SELECT date '99 01 08'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '1999 01 08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08 01 99'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08 01 1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '01 08 99'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| SELECT date '01 08 1999'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| SELECT date '99 08 01'; |
| ERROR: date/time field value out of range: "99 08 01" |
| LINE 1: SELECT date '99 08 01'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '1999 08 01'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| SET datestyle TO mdy; |
| SELECT date 'January 8, 1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '1999-01-08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '1999-01-18'; |
| date |
| ------------ |
| 1999-01-18 |
| (1 row) |
| |
| SELECT date '1/8/1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '1/18/1999'; |
| date |
| ------------ |
| 1999-01-18 |
| (1 row) |
| |
| SELECT date '18/1/1999'; |
| ERROR: date/time field value out of range: "18/1/1999" |
| LINE 1: SELECT date '18/1/1999'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '01/02/03'; |
| date |
| ------------ |
| 2003-01-02 |
| (1 row) |
| |
| SELECT date '19990108'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '990108'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '1999.008'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date 'J2451187'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date 'January 8, 99 BC'; |
| date |
| --------------- |
| 0099-01-08 BC |
| (1 row) |
| |
| SELECT date '99-Jan-08'; |
| ERROR: date/time field value out of range: "99-Jan-08" |
| LINE 1: SELECT date '99-Jan-08'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '1999-Jan-08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08-Jan-99'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08-Jan-1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date 'Jan-08-99'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date 'Jan-08-1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '99-08-Jan'; |
| ERROR: invalid input syntax for type date: "99-08-Jan" |
| LINE 1: SELECT date '99-08-Jan'; |
| ^ |
| SELECT date '1999-08-Jan'; |
| ERROR: invalid input syntax for type date: "1999-08-Jan" |
| LINE 1: SELECT date '1999-08-Jan'; |
| ^ |
| SELECT date '99 Jan 08'; |
| ERROR: invalid input syntax for type date: "99 Jan 08" |
| LINE 1: SELECT date '99 Jan 08'; |
| ^ |
| SELECT date '1999 Jan 08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08 Jan 99'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08 Jan 1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date 'Jan 08 99'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date 'Jan 08 1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '99 08 Jan'; |
| ERROR: invalid input syntax for type date: "99 08 Jan" |
| LINE 1: SELECT date '99 08 Jan'; |
| ^ |
| SELECT date '1999 08 Jan'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '99-01-08'; |
| ERROR: date/time field value out of range: "99-01-08" |
| LINE 1: SELECT date '99-01-08'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '1999-01-08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08-01-99'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| SELECT date '08-01-1999'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| SELECT date '01-08-99'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '01-08-1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '99-08-01'; |
| ERROR: date/time field value out of range: "99-08-01" |
| LINE 1: SELECT date '99-08-01'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '1999-08-01'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| SELECT date '99 01 08'; |
| ERROR: date/time field value out of range: "99 01 08" |
| LINE 1: SELECT date '99 01 08'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '1999 01 08'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '08 01 99'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| SELECT date '08 01 1999'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| SELECT date '01 08 99'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '01 08 1999'; |
| date |
| ------------ |
| 1999-01-08 |
| (1 row) |
| |
| SELECT date '99 08 01'; |
| ERROR: date/time field value out of range: "99 08 01" |
| LINE 1: SELECT date '99 08 01'; |
| ^ |
| HINT: Perhaps you need a different "datestyle" setting. |
| SELECT date '1999 08 01'; |
| date |
| ------------ |
| 1999-08-01 |
| (1 row) |
| |
| -- Check upper and lower limits of date range |
| SELECT date '4714-11-24 BC'; |
| date |
| --------------- |
| 4714-11-24 BC |
| (1 row) |
| |
| SELECT date '4714-11-23 BC'; -- out of range |
| ERROR: date out of range: "4714-11-23 BC" |
| LINE 1: SELECT date '4714-11-23 BC'; |
| ^ |
| SELECT date '5874897-12-31'; |
| date |
| --------------- |
| 5874897-12-31 |
| (1 row) |
| |
| SELECT date '5874898-01-01'; -- out of range |
| ERROR: date out of range: "5874898-01-01" |
| LINE 1: SELECT date '5874898-01-01'; |
| ^ |
| RESET datestyle; |
| -- |
| -- Simple math |
| -- Leave most of it for the horology tests |
| -- |
| SELECT f1 - date '2000-01-01' AS "Days From 2K" FROM DATE_TBL; |
| Days From 2K |
| -------------- |
| -15607 |
| -15542 |
| -1403 |
| -1402 |
| -1401 |
| -1400 |
| -1037 |
| -1036 |
| -1035 |
| 91 |
| 92 |
| 93 |
| 13977 |
| 14343 |
| 14710 |
| -1475115 |
| (16 rows) |
| |
| SELECT f1 - date 'epoch' AS "Days From Epoch" FROM DATE_TBL; |
| Days From Epoch |
| ----------------- |
| -4650 |
| -4585 |
| 9554 |
| 9555 |
| 9556 |
| 9557 |
| 9920 |
| 9921 |
| 9922 |
| 11048 |
| 11049 |
| 11050 |
| 24934 |
| 25300 |
| 25667 |
| -1464158 |
| (16 rows) |
| |
| SELECT date 'yesterday' - date 'today' AS "One day"; |
| One day |
| --------- |
| -1 |
| (1 row) |
| |
| SELECT date 'today' - date 'tomorrow' AS "One day"; |
| One day |
| --------- |
| -1 |
| (1 row) |
| |
| SELECT date 'yesterday' - date 'tomorrow' AS "Two days"; |
| Two days |
| ---------- |
| -2 |
| (1 row) |
| |
| SELECT date 'tomorrow' - date 'today' AS "One day"; |
| One day |
| --------- |
| 1 |
| (1 row) |
| |
| SELECT date 'today' - date 'yesterday' AS "One day"; |
| One day |
| --------- |
| 1 |
| (1 row) |
| |
| SELECT date 'tomorrow' - date 'yesterday' AS "Two days"; |
| Two days |
| ---------- |
| 2 |
| (1 row) |
| |
| -- |
| -- test extract! |
| -- |
| SELECT f1 as "date", |
| date_part('year', f1) AS year, |
| date_part('month', f1) AS month, |
| date_part('day', f1) AS day, |
| date_part('quarter', f1) AS quarter, |
| date_part('decade', f1) AS decade, |
| date_part('century', f1) AS century, |
| date_part('millennium', f1) AS millennium, |
| date_part('isoyear', f1) AS isoyear, |
| date_part('week', f1) AS week, |
| date_part('dow', f1) AS dow, |
| date_part('isodow', f1) AS isodow, |
| date_part('doy', f1) AS doy, |
| date_part('julian', f1) AS julian, |
| date_part('epoch', f1) AS epoch |
| FROM date_tbl; |
| date | year | month | day | quarter | decade | century | millennium | isoyear | week | dow | isodow | doy | julian | epoch |
| ---------------+-------+-------+-----+---------+--------+---------+------------+---------+------+-----+--------+-----+---------+--------------- |
| 04-09-1957 | 1957 | 4 | 9 | 2 | 195 | 20 | 2 | 1957 | 15 | 2 | 2 | 99 | 2435938 | -401760000 |
| 06-13-1957 | 1957 | 6 | 13 | 2 | 195 | 20 | 2 | 1957 | 24 | 4 | 4 | 164 | 2436003 | -396144000 |
| 02-28-1996 | 1996 | 2 | 28 | 1 | 199 | 20 | 2 | 1996 | 9 | 3 | 3 | 59 | 2450142 | 825465600 |
| 02-29-1996 | 1996 | 2 | 29 | 1 | 199 | 20 | 2 | 1996 | 9 | 4 | 4 | 60 | 2450143 | 825552000 |
| 03-01-1996 | 1996 | 3 | 1 | 1 | 199 | 20 | 2 | 1996 | 9 | 5 | 5 | 61 | 2450144 | 825638400 |
| 03-02-1996 | 1996 | 3 | 2 | 1 | 199 | 20 | 2 | 1996 | 9 | 6 | 6 | 62 | 2450145 | 825724800 |
| 02-28-1997 | 1997 | 2 | 28 | 1 | 199 | 20 | 2 | 1997 | 9 | 5 | 5 | 59 | 2450508 | 857088000 |
| 03-01-1997 | 1997 | 3 | 1 | 1 | 199 | 20 | 2 | 1997 | 9 | 6 | 6 | 60 | 2450509 | 857174400 |
| 03-02-1997 | 1997 | 3 | 2 | 1 | 199 | 20 | 2 | 1997 | 9 | 0 | 7 | 61 | 2450510 | 857260800 |
| 04-01-2000 | 2000 | 4 | 1 | 2 | 200 | 20 | 2 | 2000 | 13 | 6 | 6 | 92 | 2451636 | 954547200 |
| 04-02-2000 | 2000 | 4 | 2 | 2 | 200 | 20 | 2 | 2000 | 13 | 0 | 7 | 93 | 2451637 | 954633600 |
| 04-03-2000 | 2000 | 4 | 3 | 2 | 200 | 20 | 2 | 2000 | 14 | 1 | 1 | 94 | 2451638 | 954720000 |
| 04-08-2038 | 2038 | 4 | 8 | 2 | 203 | 21 | 3 | 2038 | 14 | 4 | 4 | 98 | 2465522 | 2154297600 |
| 04-09-2039 | 2039 | 4 | 9 | 2 | 203 | 21 | 3 | 2039 | 14 | 6 | 6 | 99 | 2465888 | 2185920000 |
| 04-10-2040 | 2040 | 4 | 10 | 2 | 204 | 21 | 3 | 2040 | 15 | 2 | 2 | 101 | 2466255 | 2217628800 |
| 04-10-2040 BC | -2040 | 4 | 10 | 2 | -204 | -21 | -3 | -2040 | 15 | 1 | 1 | 100 | 976430 | -126503251200 |
| (16 rows) |
| |
| -- |
| -- epoch |
| -- |
| SELECT EXTRACT(EPOCH FROM DATE '1970-01-01'); -- 0 |
| extract |
| --------- |
| 0 |
| (1 row) |
| |
| -- |
| -- century |
| -- |
| SELECT EXTRACT(CENTURY FROM DATE '0101-12-31 BC'); -- -2 |
| extract |
| --------- |
| -2 |
| (1 row) |
| |
| SELECT EXTRACT(CENTURY FROM DATE '0100-12-31 BC'); -- -1 |
| extract |
| --------- |
| -1 |
| (1 row) |
| |
| SELECT EXTRACT(CENTURY FROM DATE '0001-12-31 BC'); -- -1 |
| extract |
| --------- |
| -1 |
| (1 row) |
| |
| SELECT EXTRACT(CENTURY FROM DATE '0001-01-01'); -- 1 |
| extract |
| --------- |
| 1 |
| (1 row) |
| |
| SELECT EXTRACT(CENTURY FROM DATE '0001-01-01 AD'); -- 1 |
| extract |
| --------- |
| 1 |
| (1 row) |
| |
| SELECT EXTRACT(CENTURY FROM DATE '1900-12-31'); -- 19 |
| extract |
| --------- |
| 19 |
| (1 row) |
| |
| SELECT EXTRACT(CENTURY FROM DATE '1901-01-01'); -- 20 |
| extract |
| --------- |
| 20 |
| (1 row) |
| |
| SELECT EXTRACT(CENTURY FROM DATE '2000-12-31'); -- 20 |
| extract |
| --------- |
| 20 |
| (1 row) |
| |
| SELECT EXTRACT(CENTURY FROM DATE '2001-01-01'); -- 21 |
| extract |
| --------- |
| 21 |
| (1 row) |
| |
| SELECT EXTRACT(CENTURY FROM CURRENT_DATE)>=21 AS True; -- true |
| true |
| ------ |
| t |
| (1 row) |
| |
| -- |
| -- millennium |
| -- |
| SELECT EXTRACT(MILLENNIUM FROM DATE '0001-12-31 BC'); -- -1 |
| extract |
| --------- |
| -1 |
| (1 row) |
| |
| SELECT EXTRACT(MILLENNIUM FROM DATE '0001-01-01 AD'); -- 1 |
| extract |
| --------- |
| 1 |
| (1 row) |
| |
| SELECT EXTRACT(MILLENNIUM FROM DATE '1000-12-31'); -- 1 |
| extract |
| --------- |
| 1 |
| (1 row) |
| |
| SELECT EXTRACT(MILLENNIUM FROM DATE '1001-01-01'); -- 2 |
| extract |
| --------- |
| 2 |
| (1 row) |
| |
| SELECT EXTRACT(MILLENNIUM FROM DATE '2000-12-31'); -- 2 |
| extract |
| --------- |
| 2 |
| (1 row) |
| |
| SELECT EXTRACT(MILLENNIUM FROM DATE '2001-01-01'); -- 3 |
| extract |
| --------- |
| 3 |
| (1 row) |
| |
| -- next test to be fixed on the turn of the next millennium;-) |
| SELECT EXTRACT(MILLENNIUM FROM CURRENT_DATE); -- 3 |
| extract |
| --------- |
| 3 |
| (1 row) |
| |
| -- |
| -- decade |
| -- |
| SELECT EXTRACT(DECADE FROM DATE '1994-12-25'); -- 199 |
| extract |
| --------- |
| 199 |
| (1 row) |
| |
| SELECT EXTRACT(DECADE FROM DATE '0010-01-01'); -- 1 |
| extract |
| --------- |
| 1 |
| (1 row) |
| |
| SELECT EXTRACT(DECADE FROM DATE '0009-12-31'); -- 0 |
| extract |
| --------- |
| 0 |
| (1 row) |
| |
| SELECT EXTRACT(DECADE FROM DATE '0001-01-01 BC'); -- 0 |
| extract |
| --------- |
| 0 |
| (1 row) |
| |
| SELECT EXTRACT(DECADE FROM DATE '0002-12-31 BC'); -- -1 |
| extract |
| --------- |
| -1 |
| (1 row) |
| |
| SELECT EXTRACT(DECADE FROM DATE '0011-01-01 BC'); -- -1 |
| extract |
| --------- |
| -1 |
| (1 row) |
| |
| SELECT EXTRACT(DECADE FROM DATE '0012-12-31 BC'); -- -2 |
| extract |
| --------- |
| -2 |
| (1 row) |
| |
| -- |
| -- all possible fields |
| -- |
| SELECT EXTRACT(MICROSECONDS FROM DATE '2020-08-11'); |
| ERROR: date units "microseconds" not supported |
| SELECT EXTRACT(MILLISECONDS FROM DATE '2020-08-11'); |
| ERROR: date units "milliseconds" not supported |
| SELECT EXTRACT(SECOND FROM DATE '2020-08-11'); |
| ERROR: date units "second" not supported |
| SELECT EXTRACT(MINUTE FROM DATE '2020-08-11'); |
| ERROR: date units "minute" not supported |
| SELECT EXTRACT(HOUR FROM DATE '2020-08-11'); |
| ERROR: date units "hour" not supported |
| SELECT EXTRACT(DAY FROM DATE '2020-08-11'); |
| extract |
| --------- |
| 11 |
| (1 row) |
| |
| SELECT EXTRACT(MONTH FROM DATE '2020-08-11'); |
| extract |
| --------- |
| 8 |
| (1 row) |
| |
| SELECT EXTRACT(YEAR FROM DATE '2020-08-11'); |
| extract |
| --------- |
| 2020 |
| (1 row) |
| |
| SELECT EXTRACT(YEAR FROM DATE '2020-08-11 BC'); |
| extract |
| --------- |
| -2020 |
| (1 row) |
| |
| SELECT EXTRACT(DECADE FROM DATE '2020-08-11'); |
| extract |
| --------- |
| 202 |
| (1 row) |
| |
| SELECT EXTRACT(CENTURY FROM DATE '2020-08-11'); |
| extract |
| --------- |
| 21 |
| (1 row) |
| |
| SELECT EXTRACT(MILLENNIUM FROM DATE '2020-08-11'); |
| extract |
| --------- |
| 3 |
| (1 row) |
| |
| SELECT EXTRACT(ISOYEAR FROM DATE '2020-08-11'); |
| extract |
| --------- |
| 2020 |
| (1 row) |
| |
| SELECT EXTRACT(ISOYEAR FROM DATE '2020-08-11 BC'); |
| extract |
| --------- |
| -2020 |
| (1 row) |
| |
| SELECT EXTRACT(QUARTER FROM DATE '2020-08-11'); |
| extract |
| --------- |
| 3 |
| (1 row) |
| |
| SELECT EXTRACT(WEEK FROM DATE '2020-08-11'); |
| extract |
| --------- |
| 33 |
| (1 row) |
| |
| SELECT EXTRACT(DOW FROM DATE '2020-08-11'); |
| extract |
| --------- |
| 2 |
| (1 row) |
| |
| SELECT EXTRACT(DOW FROM DATE '2020-08-16'); |
| extract |
| --------- |
| 0 |
| (1 row) |
| |
| SELECT EXTRACT(ISODOW FROM DATE '2020-08-11'); |
| extract |
| --------- |
| 2 |
| (1 row) |
| |
| SELECT EXTRACT(ISODOW FROM DATE '2020-08-16'); |
| extract |
| --------- |
| 7 |
| (1 row) |
| |
| SELECT EXTRACT(DOY FROM DATE '2020-08-11'); |
| extract |
| --------- |
| 224 |
| (1 row) |
| |
| SELECT EXTRACT(TIMEZONE FROM DATE '2020-08-11'); |
| ERROR: date units "timezone" not supported |
| SELECT EXTRACT(TIMEZONE_M FROM DATE '2020-08-11'); |
| ERROR: date units "timezone_m" not supported |
| SELECT EXTRACT(TIMEZONE_H FROM DATE '2020-08-11'); |
| ERROR: date units "timezone_h" not supported |
| SELECT EXTRACT(EPOCH FROM DATE '2020-08-11'); |
| extract |
| ------------ |
| 1597104000 |
| (1 row) |
| |
| SELECT EXTRACT(JULIAN FROM DATE '2020-08-11'); |
| extract |
| --------- |
| 2459073 |
| (1 row) |
| |
| -- |
| -- test trunc function! |
| -- |
| SELECT DATE_TRUNC('MILLENNIUM', TIMESTAMP '1970-03-20 04:30:00.00000'); -- 1001 |
| date_trunc |
| -------------------------- |
| Thu Jan 01 00:00:00 1001 |
| (1 row) |
| |
| SELECT DATE_TRUNC('MILLENNIUM', DATE '1970-03-20'); -- 1001-01-01 |
| date_trunc |
| ------------------------------ |
| Thu Jan 01 00:00:00 1001 PST |
| (1 row) |
| |
| SELECT DATE_TRUNC('CENTURY', TIMESTAMP '1970-03-20 04:30:00.00000'); -- 1901 |
| date_trunc |
| -------------------------- |
| Tue Jan 01 00:00:00 1901 |
| (1 row) |
| |
| SELECT DATE_TRUNC('CENTURY', DATE '1970-03-20'); -- 1901 |
| date_trunc |
| ------------------------------ |
| Tue Jan 01 00:00:00 1901 PST |
| (1 row) |
| |
| SELECT DATE_TRUNC('CENTURY', DATE '2004-08-10'); -- 2001-01-01 |
| date_trunc |
| ------------------------------ |
| Mon Jan 01 00:00:00 2001 PST |
| (1 row) |
| |
| SELECT DATE_TRUNC('CENTURY', DATE '0002-02-04'); -- 0001-01-01 |
| date_trunc |
| ------------------------------ |
| Mon Jan 01 00:00:00 0001 PST |
| (1 row) |
| |
| SELECT DATE_TRUNC('CENTURY', DATE '0055-08-10 BC'); -- 0100-01-01 BC |
| date_trunc |
| --------------------------------- |
| Tue Jan 01 00:00:00 0100 PST BC |
| (1 row) |
| |
| SELECT DATE_TRUNC('DECADE', DATE '1993-12-25'); -- 1990-01-01 |
| date_trunc |
| ------------------------------ |
| Mon Jan 01 00:00:00 1990 PST |
| (1 row) |
| |
| SELECT DATE_TRUNC('DECADE', DATE '0004-12-25'); -- 0001-01-01 BC |
| date_trunc |
| --------------------------------- |
| Sat Jan 01 00:00:00 0001 PST BC |
| (1 row) |
| |
| SELECT DATE_TRUNC('DECADE', DATE '0002-12-31 BC'); -- 0011-01-01 BC |
| date_trunc |
| --------------------------------- |
| Mon Jan 01 00:00:00 0011 PST BC |
| (1 row) |
| |
| -- |
| -- test infinity |
| -- |
| select 'infinity'::date, '-infinity'::date; |
| date | date |
| ----------+----------- |
| infinity | -infinity |
| (1 row) |
| |
| select 'infinity'::date > 'today'::date as t; |
| t |
| --- |
| t |
| (1 row) |
| |
| select '-infinity'::date < 'today'::date as t; |
| t |
| --- |
| t |
| (1 row) |
| |
| select isfinite('infinity'::date), isfinite('-infinity'::date), isfinite('today'::date); |
| isfinite | isfinite | isfinite |
| ----------+----------+---------- |
| f | f | t |
| (1 row) |
| |
| -- |
| -- oscillating fields from non-finite date: |
| -- |
| SELECT EXTRACT(DAY FROM DATE 'infinity'); -- NULL |
| extract |
| --------- |
| |
| (1 row) |
| |
| SELECT EXTRACT(DAY FROM DATE '-infinity'); -- NULL |
| extract |
| --------- |
| |
| (1 row) |
| |
| -- all supported fields |
| SELECT EXTRACT(DAY FROM DATE 'infinity'); -- NULL |
| extract |
| --------- |
| |
| (1 row) |
| |
| SELECT EXTRACT(MONTH FROM DATE 'infinity'); -- NULL |
| extract |
| --------- |
| |
| (1 row) |
| |
| SELECT EXTRACT(QUARTER FROM DATE 'infinity'); -- NULL |
| extract |
| --------- |
| |
| (1 row) |
| |
| SELECT EXTRACT(WEEK FROM DATE 'infinity'); -- NULL |
| extract |
| --------- |
| |
| (1 row) |
| |
| SELECT EXTRACT(DOW FROM DATE 'infinity'); -- NULL |
| extract |
| --------- |
| |
| (1 row) |
| |
| SELECT EXTRACT(ISODOW FROM DATE 'infinity'); -- NULL |
| extract |
| --------- |
| |
| (1 row) |
| |
| SELECT EXTRACT(DOY FROM DATE 'infinity'); -- NULL |
| extract |
| --------- |
| |
| (1 row) |
| |
| -- |
| -- monotonic fields from non-finite date: |
| -- |
| SELECT EXTRACT(EPOCH FROM DATE 'infinity'); -- Infinity |
| extract |
| ---------- |
| Infinity |
| (1 row) |
| |
| SELECT EXTRACT(EPOCH FROM DATE '-infinity'); -- -Infinity |
| extract |
| ----------- |
| -Infinity |
| (1 row) |
| |
| -- all supported fields |
| SELECT EXTRACT(YEAR FROM DATE 'infinity'); -- Infinity |
| extract |
| ---------- |
| Infinity |
| (1 row) |
| |
| SELECT EXTRACT(DECADE FROM DATE 'infinity'); -- Infinity |
| extract |
| ---------- |
| Infinity |
| (1 row) |
| |
| SELECT EXTRACT(CENTURY FROM DATE 'infinity'); -- Infinity |
| extract |
| ---------- |
| Infinity |
| (1 row) |
| |
| SELECT EXTRACT(MILLENNIUM FROM DATE 'infinity'); -- Infinity |
| extract |
| ---------- |
| Infinity |
| (1 row) |
| |
| SELECT EXTRACT(JULIAN FROM DATE 'infinity'); -- Infinity |
| extract |
| ---------- |
| Infinity |
| (1 row) |
| |
| SELECT EXTRACT(ISOYEAR FROM DATE 'infinity'); -- Infinity |
| extract |
| ---------- |
| Infinity |
| (1 row) |
| |
| SELECT EXTRACT(EPOCH FROM DATE 'infinity'); -- Infinity |
| extract |
| ---------- |
| Infinity |
| (1 row) |
| |
| -- |
| -- wrong fields from non-finite date: |
| -- |
| SELECT EXTRACT(MICROSEC FROM DATE 'infinity'); -- error |
| ERROR: date units "microsec" not recognized |
| -- test constructors |
| select make_date(2013, 7, 15); |
| make_date |
| ------------ |
| 07-15-2013 |
| (1 row) |
| |
| select make_date(-44, 3, 15); |
| make_date |
| --------------- |
| 03-15-0044 BC |
| (1 row) |
| |
| select make_time(8, 20, 0.0); |
| make_time |
| ----------- |
| 08:20:00 |
| (1 row) |
| |
| -- should fail |
| select make_date(0, 7, 15); |
| ERROR: date field value out of range: 0-07-15 |
| select make_date(2013, 2, 30); |
| ERROR: date field value out of range: 2013-02-30 |
| select make_date(2013, 13, 1); |
| ERROR: date field value out of range: 2013-13-01 |
| select make_date(2013, 11, -1); |
| ERROR: date field value out of range: 2013-11--1 |
| select make_time(10, 55, 100.1); |
| ERROR: time field value out of range: 10:55:100.1 |
| select make_time(24, 0, 2.1); |
| ERROR: time field value out of range: 24:00:2.1 |
