| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Amit Langote <amitlangote09(at)gmail(dot)com> |
| Cc: | Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>, David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>, Imai Yoshikazu <yoshikazu_i443(at)live(dot)jp>, "jesper(dot)pedersen(at)redhat(dot)com" <jesper(dot)pedersen(at)redhat(dot)com>, "Imai, Yoshikazu" <imai(dot)yoshikazu(at)jp(dot)fujitsu(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Justin Pryzby <pryzby(at)telsasoft(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: speeding up planning with partitions |
| Date: | 2019-04-30 19:08:11 |
| Message-ID: | 17820.1556651291@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Amit Langote <amitlangote09(at)gmail(dot)com> writes:
> On Tue, Apr 30, 2019 at 1:26 PM Amit Langote <amitlangote09(at)gmail(dot)com> wrote:
>> It would be nice if at least we fix the bug that directly accessed
>> partitions are not excluded with constraint_exclusion = on, without
>> removing PG 11's contortions in relation_excluded_by_constraints to
>> work around the odd requirements imposed by inheritance_planner, which
>> is causing the additional diffs in the regression expected output.
> FWIW, attached is a delta patch that applies on top of your patch for
> v11 branch that shows what may be one way to go about this.
OK, I tweaked that a bit and pushed both versions.
regards, tom lane
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