Re: [HACKERS] advanced partition matching algorithm forpartition-wise join

On Sat, May 18, 2019 at 12:20 AM Robert Haas <robertmhaas@gmail.com> wrote:
> On Tue, May 14, 2019 at 12:24 AM Amit Langote
> <Langote_Amit_f8@lab.ntt.co.jp> wrote:
> > He did mention that cases where the nullable side is provably empty can be
> > handled by simply returning the path of the non-nullable side with
> > suitable projection path added on top to emit NULLs for the columns of the
> > nullable-side.  If we teach populate_joinrel_with_paths() and underlings
> > about that, then we can allow partitionwise join even in the case where
> > the nullable side has some partitions missing.
>
> Yes, I think that would be a good approach to pursue.

Hi Ashutosh, Amul, Fujita-san,

Could we please have a fresh rebase for the new Commitfest?

Thanks,

-- 
Thomas Munro
https://enterprisedb.com