-- time check CREATE TABLE timetmp (a time); \copy timetmp from 'data/time.data' SET enable_seqscan=on; SELECT count(*) FROM timetmp WHERE a < '10:57:11'; SELECT count(*) FROM timetmp WHERE a <= '10:57:11'; SELECT count(*) FROM timetmp WHERE a = '10:57:11'; SELECT count(*) FROM timetmp WHERE a >= '10:57:11'; SELECT count(*) FROM timetmp WHERE a > '10:57:11'; CREATE INDEX timeidx ON timetmp USING gist ( a ); SET enable_seqscan=off; SELECT count(*) FROM timetmp WHERE a < '10:57:11'::time; SELECT count(*) FROM timetmp WHERE a <= '10:57:11'::time; SELECT count(*) FROM timetmp WHERE a = '10:57:11'::time; SELECT count(*) FROM timetmp WHERE a >= '10:57:11'::time; SELECT count(*) FROM timetmp WHERE a > '10:57:11'::time;