> It is possible to code set-returning functions in a suspend-and-resume
> style, but none of the available PLs do that; you have to get down to
> the C level.
Aren't my requirements sufficiently common to justify developing a
mechanism to report progress back to client applications during batch
operations and the like? This seems like a nice thing to have, that
would be broadly useful, perhaps as a contrib module. Obviously I have
no idea of the amount of effort developing such a feature would
entail.
Regards,
Peter Geoghegan
