Re: CREATE TYPE in Postgres 7.3.4

On Thu, 2003-11-27 at 12:43, Alex Page wrote:
> This is probably really basic, but I can't seem to get it to work. I'm
> trying to create an enumerated type, using the following code:
>
>   CREATE FUNCTION enum_gender_in (cstring) RETURNS enum_gender IMMUTABLE AS
...

Why not just use a CHECK constraint?

    CREATE TABLE xxx (
      ...
      gender   CHAR(1)   CONSTRAINT "valid gender"
                           CHECK (gender IN ('M', 'F')),
      ...
    );
--
Oliver Elphick                                Oliver.Elphick@lfix.co.uk
Isle of Wight, UK                             http://www.lfix.co.uk/oliver
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