Re: NOT IN subquery optimization

On Wed, 27 Feb 2019 at 03:07, Jim Finnerty <jfinnert@amazon.com> wrote:

If you're proposing to do that for this thread then I can take my
planner only patch somewhere else.  I only posted my patch as I pretty
much already had what I thought you were originally talking about.
However, please be aware there are current patents around adding
execution time smarts in this area, so it's probably unlikely you'll
find a way to do this in the executor that does not infringe on those.
Probably no committer would want to touch it.  I think my patch covers
a good number of use cases and as far as I understand, does not go
near any current patents.