From: | Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp> |
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To: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> |
Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, 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>, Amit Langote <amitlangote09(at)gmail(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: | 2019-04-11 05:09:14 |
Message-ID: | a1fb3fa3-5039-ef12-8948-73caec51bd97@lab.ntt.co.jp |
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Lists: | pgsql-hackers |
On 2019/04/11 14:03, David Rowley wrote:
> On Fri, 5 Apr 2019 at 19:50, Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp> wrote:
>> While we're on the topic of the relation between constraint exclusion and
>> partition pruning, I'd like to (re-) propose this documentation update
>> patch. The partitioning chapter in ddl.sgml says update/delete of
>> partitioned tables uses constraint exclusion internally to emulate
>> partition pruning, which is no longer true as of 428b260f8.
>
> Update-docs-that-update-delete-no-longer-use-cons.patch looks good to
> me. It should be changed as what the docs say is no longer true.
Thanks for the quick review. :)
Regards,
Amit
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