Re: Migrating a MySQL schema with an enum

Martin Marques <martin@bugs.unl.edu.ar>

From: Martín Marqués <martin@bugs.unl.edu.ar>
To: "SQL" <pgsql-sql@postgresql.org>
Date: 2002-03-21T11:43:40Z
Lists: pgsql-sql
On Mié 20 Mar 2002 23:31, you wrote:
> > Keith Gray writes:
> > > Migrating a MySQL schema with an enum to PostgreSQL,
> > > is there an equivalent type or do I have to declare
> > > another table for "enum" values.
> >
> > Generally, you'd use a text field with a check constraint.  For example:
> >
> > CREATE TABLE car (
> >  ...
> >  color text check (color in ('blue', 'green', 'yellow')),
> >  ...
> > );
>
> Nope - cos you need 'blue,green' as a value, etc. as well.

That's not how enum() works.

-- 
Porqué usar una base de datos relacional cualquiera,
si podés usar PostgreSQL?
-----------------------------------------------------------------
Martín Marqués                  |        mmarques@unl.edu.ar
Programador, Administrador, DBA |       Centro de Telematica
                       Universidad Nacional
                            del Litoral
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