-- -- TIME -- CREATE TABLE TIME_TBL (f1 time(2)); INSERT INTO TIME_TBL VALUES ('00:00'); INSERT INTO TIME_TBL VALUES ('01:00'); INSERT INTO TIME_TBL VALUES ('12:00'); INSERT INTO TIME_TBL VALUES ('12:01'); INSERT INTO TIME_TBL VALUES ('23:59'); INSERT INTO TIME_TBL VALUES ('11:59:59.99 PM'); SELECT f1 AS "None" FROM TIME_TBL WHERE f1 < '00:00'; -- Check edge cases SELECT '23:59:59.999999'::time; SELECT '23:59:59.9999999'::time; -- rounds up SELECT '23:59:60'::time; -- rounds up SELECT '24:00:00'::time; -- allowed SELECT '24:00:00.01'::time; -- not allowed SELECT '23:59:60.01'::time; -- not allowed SELECT '24:01:00'::time; -- not allowed SELECT '25:00:00'::time; -- not allowed -- -- test EXTRACT -- SELECT EXTRACT(MICROSECOND FROM TIME '2020-05-26 13:30:25.575401'); SELECT EXTRACT(MILLISECOND FROM TIME '2020-05-26 13:30:25.575401'); SELECT EXTRACT(SECOND FROM TIME '2020-05-26 13:30:25.575401'); SELECT EXTRACT(MINUTE FROM TIME '2020-05-26 13:30:25.575401'); SELECT EXTRACT(HOUR FROM TIME '2020-05-26 13:30:25.575401'); SELECT EXTRACT(DAY FROM TIME '2020-05-26 13:30:25.575401'); -- error SELECT EXTRACT(FORTNIGHT FROM TIME '2020-05-26 13:30:25.575401'); -- error SELECT EXTRACT(TIMEZONE FROM TIME '2020-05-26 13:30:25.575401'); -- error SELECT EXTRACT(EPOCH FROM TIME '2020-05-26 13:30:25.575401'); -- date_part implementation is mostly the same as extract, so only -- test a few cases for additional coverage. SELECT date_part('microsecond', TIME '2020-05-26 13:30:25.575401'); SELECT date_part('millisecond', TIME '2020-05-26 13:30:25.575401'); SELECT date_part('second', TIME '2020-05-26 13:30:25.575401'); SELECT date_part('epoch', TIME '2020-05-26 13:30:25.575401');