| From: | Thom Brown <thom(at)linux(dot)com> |
|---|---|
| To: | Zhang Mingli <zmlpostgres(at)gmail(dot)com> |
| Cc: | Andrey Lepikhov <a(dot)lepikhov(at)postgrespro(dot)ru>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Yuya Watari <watari(dot)yuya(at)gmail(dot)com>, David Rowley <dgrowleyml(at)gmail(dot)com>, PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: [PoC] Reducing planning time when tables have many partitions |
| Date: | 2022-11-16 16:44:58 |
| Message-ID: | CAA-aLv5NckWVgRWfL=zhNM-yw_rg55Bx0Ohw8LfnZwqqPnn7cA@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Mon, 7 Nov 2022 at 06:33, Zhang Mingli <zmlpostgres(at)gmail(dot)com> wrote:
>
> HI,
>
> Regards,
> Zhang Mingli
> On Nov 7, 2022, 14:26 +0800, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, wrote:
>
> Andrey Lepikhov <a(dot)lepikhov(at)postgrespro(dot)ru> writes:
>
> I'm still in review of your patch now. At most it seems ok, but are you
> really need both eq_sources and eq_derives lists now?
>
>
> Didn't we just have this conversation? eq_sources needs to be kept
> separate to support the "broken EC" logic. We don't want to be
> regurgitating derived clauses as well as originals in that path.
>
> Aha, we have that conversation in another thread(Reducing duplicativeness of EquivalenceClass-derived clauses
> ) : https://www.postgresql.org/message-id/644164.1666877342%40sss.pgh.pa.us
Once the issue Tom identified has been resolved, I'd like to test
drive newer patches.
Thom
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tom Lane | 2022-11-16 16:54:10 | Re: meson oddities |
| Previous Message | Andres Freund | 2022-11-16 16:40:10 | Re: meson oddities |