On Sat, 23 May 2020 at 06:31, Robert Haas <robertmh...@gmail.com> wrote: > > On Thu, May 21, 2020 at 6:28 PM Thomas Munro <thomas.mu...@gmail.com> wrote: > > Right, I think it's safe. I think you were probably right that > > ramp-up isn't actually useful though, it's only the end of the scan > > that requires special treatment so we don't get unfair allocation as > > the work runs out, due to course grain. > > The ramp-up seems like it might be useful if the query involves a LIMIT.
That's true, but I think the intelligence there would need to go beyond, "if there's a LIMIT clause, do ramp-up", as we might have already fully ramped up well before the LIMIT is reached. David
