Brett McCormick wrote:
>
> On Fri, 27 February 1998, at 10:27:07, Vadim B. Mikheev wrote:
> > Michael J. Rogan wrote:
> > >
> > > >
> > > > But we could return PRIMARY KEY of affected tuple if it exists!
> > > > I kept this feature in mind when thought about removing OID...
> > > >
> > > > Comments ?
> > >
> > > This would be very useful. I never did like the idea of using OID as
> > > reference so a way to get the PIMARY KEY would be A GOOD THING(tm).
> >
> > But we will have to decide how to deal with multi-key PK...
> >
> > Vadim
>
> How is this implemented?
Using multi-key unique btree indices.
Vadim