| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | David Rowley <dgrowleyml(at)gmail(dot)com> |
| Cc: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Jan Wieck <jan(at)wi3ck(dot)info> |
| Subject: | Re: Negative cache entries for memoize |
| Date: | 2023-04-05 21:51:15 |
| Message-ID: | ZC3tUwkzS8lL6wjB@momjian.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Thu, Apr 6, 2023 at 09:23:31AM +1200, David Rowley wrote:
> On Thu, 6 Apr 2023 at 03:12, Bruce Momjian <bruce(at)momjian(dot)us> 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, so I'm curious about what you
> did to test this.
My mistake. Someone asked in Los Angeles and Jan Wieck checked during
the talk and said he didn't see it, and when someone asked in Moscow, I
repeated that answer. My mistake. I have updated the slides with the
correct information.
--
Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EDB https://enterprisedb.com
Embrace your flaws. They make you human, rather than perfect,
which you will never be.
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