Re: Support "Right Semi Join" plan shapes

On Fri, Jun 28, 2024 at 3:21 PM Richard Guo <guofenglinux@gmail.com> wrote:
> On Fri, Jun 28, 2024 at 2:54 PM Richard Guo <guofenglinux@gmail.com> wrote:
> > I've refined this test case further to make it more stable by using an
> > additional filter 'a.tenthous < 5000'.  Besides, I noticed a surplus
> > blank line in ExecHashJoinImpl().  I've removed it in the v7 patch.
>
> BTW, I've also verified the empty-rel optimization for hash join and
> AFAICT it works correctly for the new right-semi join.

Here is a new rebase.

Barring objections, I'm planning to push it soon.

Thanks
Richard