> > In my paper I use C functions that take "any tuple".
> > I do not yet see how I can do that without opaque if we don't
> > have a "row" but only a "trigger" type.
>
> For that you would have to use "any", at the moment. This would give
> you the same amount of type safety you have with "opaque", ie, none.
I would have to use some pg_proc magic to make "any" appear there,
since the plan was to not make it visible at the sql level, no ?
If you do, you would also have to throw the notice for "any".
Again, I think leaving "any" be "opaque" and throwing the warning NOTICE
would be better. I do not think there is enough time to really see through
the implications of restricting opaque already in 7.3, (at least for me :-)
> We could talk about adding more pseudotypes that are geared to
> requirements not existing in the standard set of functions ...
> but I'm going to concentrate on those first.
Yes, certainly a lot of work.
Andreas