Re: MERGE vs REPLACE

On 11/22/05, Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> wrote:
> Jaime Casanova wrote:
> > >
> > > And yes merge CAN be used to do REPLACE (oracle uses their dummy table
> > > for this, we can use the fact that FROM clause isn't required in postgres).
> > >
> >
> > the FROM clause is required by default (starting with 8.1) unless you
> > change a postgresql.conf parameter.
> >
> > and i don't think that idea will have any fan...
>
> No, it is not, try SELECT 1. Oracle requires SELECT 1 FROM dual. The
> change in 8.1 is that SELECT pg_class.relname no longer works. You have to
> do SELECT relname FROM pg_class.
>
> --
> Bruce Momjian | http://candle.pha.pa.us
> pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
> + If your life is a hard drive, | 13 Roberts Road
> + Christ can be your backup. | Newtown Square, Pennsylvania 19073
>

touche...

--
regards,
Jaime Casanova
(DBA: DataBase Aniquilator ;)