On Sun, Nov 6, 2022 at 4:00 AM Tom Lane <t...@sss.pgh.pa.us> wrote: > Richard Guo <guofengli...@gmail.com> writes: > > AFAICS, the Vars forced nonnullable by given clause are only used to > > check if we can reduce JOIN_LEFT to JOIN_ANTI, and it is checking the > > join's own quals there. It seems to me we do not need to pass down > > nonnullable_vars by upper quals to the children of a join. > > Hmm, you are right, we are not doing anything useful with that data. > I can't remember if I had a concrete plan for doing something with it > or not, but we sure aren't using it now. So pushed.
Thanks for pushing it! Thanks Richard
