Martijn van Oosterhout <kleptog(at)svana(dot)org> writes:
> Perhaps a far easier approach would be to indeed just have a hijack
> interface that provides read/write over whatever protocol libpq
> negotiated.
Well, there's a precedent to look at: the original implementation of
COPY mode was pretty nearly exactly that. And it sucked, and eventually
we changed it. So I'd be pretty leery of repeating the experience...
regards, tom lane