1set enable_seqscan=off;
2
3CREATE TABLE test_timestamp (
4	i timestamp
5);
6
7INSERT INTO test_timestamp VALUES
8	( '2004-10-26 03:55:08' ),
9	( '2004-10-26 04:55:08' ),
10	( '2004-10-26 05:55:08' ),
11	( '2004-10-26 08:55:08' ),
12	( '2004-10-26 09:55:08' ),
13	( '2004-10-26 10:55:08' )
14;
15
16CREATE INDEX idx_timestamp ON test_timestamp USING gin (i);
17
18SELECT * FROM test_timestamp WHERE i<'2004-10-26 08:55:08'::timestamp ORDER BY i;
19SELECT * FROM test_timestamp WHERE i<='2004-10-26 08:55:08'::timestamp ORDER BY i;
20SELECT * FROM test_timestamp WHERE i='2004-10-26 08:55:08'::timestamp ORDER BY i;
21SELECT * FROM test_timestamp WHERE i>='2004-10-26 08:55:08'::timestamp ORDER BY i;
22SELECT * FROM test_timestamp WHERE i>'2004-10-26 08:55:08'::timestamp ORDER BY i;
23