Re: Allow DISTINCT to use Incremental Sort

On Tue, 10 Jan 2023 at 16:07, Richard Guo <guofenglinux@gmail.com> wrote:
> Sorry I didn't make myself clear.  I mean currently on HEAD in planner.c
> from line 4847 to line 4857, we have the code to make sure we always use
> the more rigorous clause for explicit-sort case.  I think this code is
> not necessary, because we have already done that in line 4791 to 4796,
> for both DISTINCT ON and standard DISTINCT.

Thanks for explaining.  I'm unsure if that code ever did anything
useful, but I agree that it does nothing now.

>> I've attached an updated patch
>
>
> The patch looks good to me.

Thanks for having another look. I've now pushed the patch.

David