| From: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> |
|---|---|
| To: | Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp> |
| 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 05:03:07 |
| Message-ID: | CAKJS1f8bmUGxUSYq6dOEA7Y8RgtYyrXd=oz1av6uKu1F0SYSUw@mail.gmail.com |
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| Lists: | pgsql-hackers |
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.
--
David Rowley http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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