Am Mittwoch, 20. Dezember 2006 04:44 schrieb Tom Lane:
> If you can show me a reasonably bulletproof or machine-checkable way to
> keep the two kinds of column numbers distinct, I'd be all for it.
The only way I can see is to make the domains of the numbers distinct.
--
Peter Eisentraut
http://developer.postgresql.org/~petere/