> > Tom, I remember you are going to enhance the function manager to allow
> > functions to return set of rows.
>
> Moi? I don't recall saying any such thing. Jan sounded like he had
> some ideas about how to do it, but my ambitions for fmgr don't go
> further than cleaning up NULL handling and fixing its portability
> problems. I have too many other things to do...
Sorry for the confusion.
> > If this is possible, it should be very easy to implement the virtual
> > tables.
>
> It would indeed provide a nice way of defining virtual tables --- just
> make a function that returns the current table contents on-demand.
Anyway, it seems you already have an idea how to implement virtual
tables without modifying the fmgr. Can you tell me about that?
--
Tatsuo Ishii