On Mon, 27 Apr 2020 at 00:37, Andy Fan <zhihui.fan1213@gmail.com> wrote:
> I was feeling that we may have to maintain some extra status if we use hash
> table rather than tuple store, but that might be not a major concern. I can
> wait and see your patch.
I've posted the patch and lots of details about it in
https://postgr.es/m/CAApHDvrPcQyQdWERGYWx8J+2DLUNgXu+fOSbQ1UscxrunyXyrQ@mail.gmail.com
David