set enable_seqscan=off; CREATE TABLE test_timestamp ( i timestamp ); INSERT INTO test_timestamp VALUES ( '2004-10-26 03:55:08' ), ( '2004-10-26 04:55:08' ), ( '2004-10-26 05:55:08' ), ( '2004-10-26 08:55:08' ), ( '2004-10-27 09:55:08' ), ( '2004-10-27 10:55:08' ) ; CREATE INDEX idx_timestamp ON test_timestamp USING gin (i); SELECT * FROM test_timestamp WHERE i<'2004-10-26 08:55:08'::timestamp ORDER BY i; SELECT * FROM test_timestamp WHERE i<='2004-10-26 08:55:08'::timestamp ORDER BY i; SELECT * FROM test_timestamp WHERE i='2004-10-26 08:55:08'::timestamp ORDER BY i; SELECT * FROM test_timestamp WHERE i>='2004-10-26 08:55:08'::timestamp ORDER BY i; SELECT * FROM test_timestamp WHERE i>'2004-10-26 08:55:08'::timestamp ORDER BY i; explain (costs off) SELECT * FROM test_timestamp WHERE i<'2004-10-27'::date ORDER BY i; SELECT * FROM test_timestamp WHERE i<'2004-10-27'::date ORDER BY i; SELECT * FROM test_timestamp WHERE i<='2004-10-27'::date ORDER BY i; SELECT * FROM test_timestamp WHERE i='2004-10-27'::date ORDER BY i; SELECT * FROM test_timestamp WHERE i>='2004-10-27'::date ORDER BY i; SELECT * FROM test_timestamp WHERE i>'2004-10-27'::date ORDER BY i; explain (costs off) SELECT * FROM test_timestamp WHERE i<'2004-10-26 08:55:08'::timestamptz ORDER BY i; SELECT * FROM test_timestamp WHERE i<'2004-10-26 08:55:08'::timestamptz ORDER BY i; SELECT * FROM test_timestamp WHERE i<='2004-10-26 08:55:08'::timestamptz ORDER BY i; SELECT * FROM test_timestamp WHERE i='2004-10-26 08:55:08'::timestamptz ORDER BY i; SELECT * FROM test_timestamp WHERE i>='2004-10-26 08:55:08'::timestamptz ORDER BY i; SELECT * FROM test_timestamp WHERE i>'2004-10-26 08:55:08'::timestamptz ORDER BY i; -- Check endpoint and out-of-range cases INSERT INTO test_timestamp VALUES ('-infinity'), ('infinity'); SELECT gin_clean_pending_list('idx_timestamp'); SELECT * FROM test_timestamp WHERE i<'-infinity'::date ORDER BY i; SELECT * FROM test_timestamp WHERE i<='-infinity'::date ORDER BY i; SELECT * FROM test_timestamp WHERE i='-infinity'::date ORDER BY i; SELECT * FROM test_timestamp WHERE i>='-infinity'::date ORDER BY i; SELECT * FROM test_timestamp WHERE i>'-infinity'::date ORDER BY i; SELECT * FROM test_timestamp WHERE i<'infinity'::date ORDER BY i; SELECT * FROM test_timestamp WHERE i<='infinity'::date ORDER BY i; SELECT * FROM test_timestamp WHERE i='infinity'::date ORDER BY i; SELECT * FROM test_timestamp WHERE i>='infinity'::date ORDER BY i; SELECT * FROM test_timestamp WHERE i>'infinity'::date ORDER BY i; SELECT * FROM test_timestamp WHERE i<'-infinity'::timestamptz ORDER BY i; SELECT * FROM test_timestamp WHERE i<='-infinity'::timestamptz ORDER BY i; SELECT * FROM test_timestamp WHERE i='-infinity'::timestamptz ORDER BY i; SELECT * FROM test_timestamp WHERE i>='-infinity'::timestamptz ORDER BY i; SELECT * FROM test_timestamp WHERE i>'-infinity'::timestamptz ORDER BY i; SELECT * FROM test_timestamp WHERE i<'infinity'::timestamptz ORDER BY i; SELECT * FROM test_timestamp WHERE i<='infinity'::timestamptz ORDER BY i; SELECT * FROM test_timestamp WHERE i='infinity'::timestamptz ORDER BY i; SELECT * FROM test_timestamp WHERE i>='infinity'::timestamptz ORDER BY i; SELECT * FROM test_timestamp WHERE i>'infinity'::timestamptz ORDER BY i; -- This PST timestamptz will underflow if converted to timestamp SELECT * FROM test_timestamp WHERE i<='4714-11-23 17:00 BC'::timestamptz ORDER BY i; SELECT * FROM test_timestamp WHERE i>'4714-11-23 17:00 BC'::timestamptz ORDER BY i;