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From: Evgeniy Shishkin <itparanoia@gmail.com>
To: acanada <acanada@cnio.es>
Cc: pgsql-performance@postgresql.org list <pgsql-performance@postgresql.org>
Subject: Re: Query taking long time
Date: Mon, 10 Mar 2014 17:45:06 +0300
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On 07 Mar 2014, at 13:18, acanada <acanada@cnio.es> wrote:

> The table entity2document2 has 30GB. In consecutive runs it gets much better... 30ms apron.

So you just benchmarking your hard drives with random iops.

You need more ram and faster disks.

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