From: Andreas Kretschmer <akretschmer@spamfence.net>
To: pgsql-performance@postgresql.org
Subject: Re: Materialized view performance problems
Date: Wed, 6 Jan 2016 18:23:07 +0100
Message-ID: <20160106172307.GA7532@tux> (raw)
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Tom McLoughlin <tom@dynamiccreative.com> wrote:
> Thank you very much for your help.
>
> It's difficult for me to run analyse explain for the query given because it
> takes so long. However, the query below has a similar structure but has less
> data to process.
Seems okay, but it's better to analyse that for the real query. You can
install the auto_explain - module and enable auto_explain.log_analyze
and set auto_explain.log_min_duration to a proper value.
You can find later the explain analse - ouput in the log.
Consider all steps mit seq-scans, but as i see all seq-scan are on small
tables and the majority of rows are in the result, so an index can't
help much.
Andreas
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To: pgsql-performance@postgresql.org
Cc: akretschmer@spamfence.net
Subject: Re: Materialized view performance problems
In-Reply-To: <20160106172307.GA7532@tux>
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