-- interval check CREATE TABLE intervaltmp (a interval); \copy intervaltmp from 'data/interval.data' SET enable_seqscan=on; SELECT count(*) FROM intervaltmp WHERE a < '199 days 21:21:23'; SELECT count(*) FROM intervaltmp WHERE a <= '199 days 21:21:23'; SELECT count(*) FROM intervaltmp WHERE a = '199 days 21:21:23'; SELECT count(*) FROM intervaltmp WHERE a >= '199 days 21:21:23'; SELECT count(*) FROM intervaltmp WHERE a > '199 days 21:21:23'; CREATE INDEX intervalidx ON intervaltmp USING gist ( a ); SET enable_seqscan=off; SELECT count(*) FROM intervaltmp WHERE a < '199 days 21:21:23'::interval; SELECT count(*) FROM intervaltmp WHERE a <= '199 days 21:21:23'::interval; SELECT count(*) FROM intervaltmp WHERE a = '199 days 21:21:23'::interval; SELECT count(*) FROM intervaltmp WHERE a >= '199 days 21:21:23'::interval; SELECT count(*) FROM intervaltmp WHERE a > '199 days 21:21:23'::interval;