Re: Apply the "LIMIT 1" optimization to partial DISTINCT

On Fri, 26 Jan 2024 at 21:14, David Rowley <dgrowleyml@gmail.com> wrote:
> However, having said that. Parallel plans are often picked when there
> is some highly selective qual as parallel_tuple_cost has to be applied
> to fewer tuples for such plans, so probably this is worth doing.

I was messing around with your test case and didn't manage to get any
plan that had any rows to use the partial path with the LIMIT.  I
ended up dropping the test that was checking the results were empty as
I didn't think it added much more value over the EXPLAIN output.

I pushed the result.

Thanks for working on this.

David