From: Jim Finnerty <jfinnert@amazon.com>
To: pgsql-performance@postgresql.org
Subject: Re: Detect missing combined indexes (automatically)
Date: Sat, 12 Jan 2019 08:47:09 -0700 (MST)
Message-ID: <1547308029438-0.post@n3.nabble.com> (raw)
In-Reply-To: <fdbf5d62-c06a-761e-276e-ef72e772ed25@thomas-guettler.de>
References: <fdbf5d62-c06a-761e-276e-ef72e772ed25@thomas-guettler.de>
By the term 'combined indexes', do you mean a multi-column index, or a set of
single-column indexes that need to be combined by the planner? What
methodology are you using to recommend missing indexes?
You may be able to enlist help from more people if you provide a specific
example of a query that you have that isn't performing well (with the
explain (analyze, verbose, buffers) plan on https://explain.depesz.com/),
the index(es) that improve performance (with the plan on
https://explain.depesz.com/), and the 'single index' tools / methodology
that you're currently using to suggest missing indexes.
/Jim F
-----
Jim Finnerty, AWS, Amazon Aurora PostgreSQL
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To: pgsql-performance@postgresql.org
Cc: jfinnert@amazon.com
Subject: Re: Detect missing combined indexes (automatically)
In-Reply-To: <1547308029438-0.post@n3.nabble.com>
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