`id1` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
`id2` datetime DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8
insert into time values('2014-10-20 16:16:24','2014-10-23 16:17:01');
mysql> select * from time;
+---------------------+---------------------+
| id1 | id2 |
+---------------------+---------------------+
| 2014-10-20 16:16:24 | 2014-10-23 16:17:01 |
| 2014-10-26 16:16:24 | 2014-10-26 16:17:01 |
+---------------------+---------------------+
mysql> select * from time where id1>now();
+---------------------+---------------------+
| id1 | id2 |
+---------------------+---------------------+
| 2014-10-26 16:16:24 | 2014-10-26 16:17:01 |
+---------------------+---------------------+