Robert Haas <robertmhaas@gmail.com> writes:
> Being able to do that sort of thing was one of my goals in designing
> the ExecShutdownNode stuff. Unfortunately, it's clear from this bug
> report that it's still a few bricks short of a load, and Tom doesn't
> seem real optimistic about how easy it will be to buy those bricks at
> discount prices. But I hope we persist in trying to get there, because
> I don't like the idea of saying that we'll never be smart enough to
> know we're done with any part of the plan until we're definitely done
> with the whole thing. I think that's leaving too much money on the
> table.
To clarify my position --- I think it's definitely possible to improve
the situation a great deal. We "just" have to pass down more information
about whether rescans are possible. What I don't believe is that that
leads to a bug fix that would be sane to back-patch as far as 9.6.
regards, tom lane