From: PFC <lists@peufeu.com>
To: Zoltan Boszormenyi <zboszor@dunaweb.hu>
Cc: pgsql-performance@postgresql.org
Subject: Re: Auto-tuning a VIEW?
Date: Wed, 14 Dec 2005 23:18:40 +0100
Message-ID: <op.s1sn9ey6cigqcu@peufeu.com> (raw)
In-Reply-To: <43A09F1F.6030105@dunaweb.hu>
References: <43A08EF5.4060306@dunaweb.hu>
<op.s1smezd8cigqcu@peufeu.com>
<43A09F1F.6030105@dunaweb.hu>
> Thanks, now the SELECT from the huge VIEW runs under one third of the
> original runtime.
Nice.
>>> select * from v1 where code||num = 'AAA2005000001';
I do not know if it is at all possible, but maybe you could use a rule
to, on select to your view, do instead a select on the two separate
columns used in the key, with a bit of massaging on the values using
substring()...
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To: pgsql-performance@postgresql.org
Cc: lists@peufeu.com, zboszor@dunaweb.hu
Subject: Re: Auto-tuning a VIEW?
In-Reply-To: <op.s1sn9ey6cigqcu@peufeu.com>
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