2009-03-26 07:20:01 +08:00
|
|
|
set enable_seqscan=off;
|
|
|
|
CREATE TABLE test_date (
|
|
|
|
i date
|
|
|
|
);
|
2010-11-24 04:27:50 +08:00
|
|
|
INSERT INTO test_date VALUES
|
2009-03-26 07:20:01 +08:00
|
|
|
( '2004-10-23' ),
|
|
|
|
( '2004-10-24' ),
|
|
|
|
( '2004-10-25' ),
|
|
|
|
( '2004-10-26' ),
|
|
|
|
( '2004-10-27' ),
|
|
|
|
( '2004-10-28' )
|
|
|
|
;
|
|
|
|
CREATE INDEX idx_date ON test_date USING gin (i);
|
|
|
|
SELECT * FROM test_date WHERE i<'2004-10-26'::date ORDER BY i;
|
|
|
|
i
|
|
|
|
------------
|
|
|
|
10-23-2004
|
|
|
|
10-24-2004
|
|
|
|
10-25-2004
|
|
|
|
(3 rows)
|
|
|
|
|
|
|
|
SELECT * FROM test_date WHERE i<='2004-10-26'::date ORDER BY i;
|
|
|
|
i
|
|
|
|
------------
|
|
|
|
10-23-2004
|
|
|
|
10-24-2004
|
|
|
|
10-25-2004
|
|
|
|
10-26-2004
|
|
|
|
(4 rows)
|
|
|
|
|
|
|
|
SELECT * FROM test_date WHERE i='2004-10-26'::date ORDER BY i;
|
|
|
|
i
|
|
|
|
------------
|
|
|
|
10-26-2004
|
|
|
|
(1 row)
|
|
|
|
|
|
|
|
SELECT * FROM test_date WHERE i>='2004-10-26'::date ORDER BY i;
|
|
|
|
i
|
|
|
|
------------
|
|
|
|
10-26-2004
|
|
|
|
10-27-2004
|
|
|
|
10-28-2004
|
|
|
|
(3 rows)
|
|
|
|
|
|
|
|
SELECT * FROM test_date WHERE i>'2004-10-26'::date ORDER BY i;
|
|
|
|
i
|
|
|
|
------------
|
|
|
|
10-27-2004
|
|
|
|
10-28-2004
|
|
|
|
(2 rows)
|
|
|
|
|