--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings

CREATE TABLE t1(c1 DATE NOT NULL, c2 DATE NULL, c3 DATETIME, c4 TIMESTAMP, PRIMARY KEY(c1), UNIQUE INDEX(c2));
INSERT INTO t1 VALUES('98-12-31 11:30:45','98.12.31 11+30+45','98-12-31 11:30:45','98.12.31 11+30+45'),('98/12/30 11*30*45','98@12@30 11^30^45','98/12/30 11*30*45','98@12@30 11^30^45'),('98-12-29','98.12.29','98-12-29','98.12.29'),('98/12/28','98@12@28','98/12/28','98@12@28');
INSERT INTO t1 VALUES('20070523091528','070523091528','20070524091528','070524091528'),('20070525','070525','20070526','070526');
INSERT INTO t1 VALUES(19830905132800,830905132800,19830906132800,830906132800),(19830907,830907,19830908,830908);
SET TIMESTAMP=1233216687; # 2009-01-29 13:41:27 
INSERT INTO t1 VALUES(NOW(),CURRENT_DATE,NOW(),CURRENT_DATE);
INSERT INTO t1 VALUES('2008-01-01',NULL,'08-01-02','08/01/03'); 
INSERT INTO t1(c1,c2) VALUES('08/01/17',NULL);
DELETE FROM t1 WHERE c1='08/01/17' AND c2 IS NULL;
INSERT INTO t1 VALUES('','','08-01-04','08/01/05');

--sorted_result
SELECT * FROM t1;
SELECT * FROM t1 WHERE c1 > '1998-12-31 11:30:45' ORDER BY c1;

DROP TABLE t1;