At 19.44 09/11/2001 +0100, you wrote:

>Marco,
>
> > P.S. I usually use as primary key a NUMERIC(18,4) column that is stored
> > into a 64Bit
> > INTEGER and fill it with a generator.
>
>did you mean (18, 0)?
>--
>

18,0 are stored as INT64.
It's almost the same for a primary key.
Regards
Marco