From: Bruce Momjian <bruce@momjian.us>
To: PostgreSQL-documentation <pgsql-docs@postgresql.org>
Subject: Run-time partition pruning and EXPLAIN [ANALYZE]
Date: Mon, 2 Jul 2018 05:51:42 -0400
Message-ID: <20180702095142.GA3531@momjian.us> (raw)
I attended a Postgres 11 feature talk by Daniel Westermann at the Swiss
PGDay about the features in Postgres 11. He showed that EXPLAIN does
not show run-time partition pruning, only EXPLAIN ANALYZE does; see
slides 32-34 at
https://www.pgday.ch/common/slides/2018_westermann_WhatWeAlreadyKnowAboutPostgreSQL11.pdf.
I might be obvious once you see it, but it wasn't obvious to me before
this. I don't see this documented. I think we should.
--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ As you are, so once was I. As I am, so you will be. +
+ Ancient Roman grave inscription +
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To: pgsql-docs@postgresql.org
Cc: bruce@momjian.us
Subject: Re: Run-time partition pruning and EXPLAIN [ANALYZE]
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