How is it?

[Quang D. Nguyen]

Dear MySQL Developers,

How do you think about this problem?

--cut here------
mysql> create table example ( 
    -> mydate DATE );
Query OK, 0 rows affected (0.02 sec)

mysql> insert into example values ('1999-02-30');
Query OK, 1 row affected (0.02 sec)

mysql> select mydate from example
    -> ;
+------------+
| mydate     |
+------------+
| 1999-02-30 |
+------------+
1 row in set (0.00 sec)

mysql> 
---cut here----------------------

Which day is 1999-02-30 ?

Thank you.