Re: Explain buffers wrong counter with parallel plans

On Sat, May 5, 2018 at 8:56 AM, Amit Kapila <amit.kapila16@gmail.com> wrote:
> The reason why I think the current behavior is okay because it is
> coincidental that they were displayed correctly.  We have not made any
> effort to percolate it to upper nodes.  For ex., before that commit
> also, it was not being displayed for Gather Merge or Gather with some
> kind of node like 'Limit' where we have to stop before reaching the
> end of the result.

It's not entirely coincidental.  I had the intention to try to ensure
that the workers would be shut down before the Gather or Gather Merge,
and I think that various things in the code testify to that intention.
It sounds like I missed some cases, but now we're missing even more
cases.

-- 
Robert Haas
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