On Mon, Apr 1, 2013 at 1:22 AM, Jasen Betts <jasen@xxxxxxxxxx> wrote: > On Mon, Apr 01, 2013 at 07:08:15PM +1300, Tim Uckun wrote: >> > >> > how about using an enum instead of this table? >> > >> > >> That's an interesting idea. Are enums mutable? > > > since 9.1 you can add values. > > http://www.postgresql.org/docs/9.1/static/sql-altertype.html It's an interesting idea, but I don't think enums are designed to act as a primary key except in cases where the data is basically static and is relatively small. For starters, any manipulation of the enum requires a lock. enums can be a real life saver when you need custom ordering built into a string, especially if that ordering is floated over a composite index. merlin -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
