29 May
2009
29 May
'09
12:15 a.m.
On Thu, 2009-05-28 at 08:04 +0200, John Fawcett wrote:
but maybe that's not such a good primary key, probably better to do:
mysql> CREATE TABLE expires (
-> id integer not null auto_increment, -> username varchar(100) not null,
-> mailbox varchar(255) not null,
-> expire_stamp integer not null,
-> primary key (id), -> key (username, mailbox(200)) -> ); Query OK, 0 rows affected (0.00 sec)
Nothing uses the id, so I don't really see a point in having primary key at all then. You could instead create a unique index on (username, mailbox), unless MySQL disallows that too.