On Thu, Apr 6, 2023 at 09:23:31AM +1200, David Rowley wrote:
> On Thu, 6 Apr 2023 at 03:12, Bruce Momjian wrote:
> > During two presentations, I was asked if negative cache entries were
> > created for cases where inner-side lookups returned no rows.
> >
> > It seems we don't do that. Has this b
On Thu, 6 Apr 2023 at 03:12, Bruce Momjian wrote:
> During two presentations, I was asked if negative cache entries were
> created for cases where inner-side lookups returned no rows.
>
> It seems we don't do that. Has this been considered or is it planned?
It does allow negative cache entries,
I wrote an optimizer talk that explains memoize, slides 24-25:
https://momjian.us/main/writings/pgsql/beyond.pdf#page=25
During two presentations, I was asked if negative cache entries were
created for cases where inner-side lookups returned no rows.
It seems we don't do that. Has this
