From: Tom Lane <tgl@sss.pgh.pa.us>
To: Piñeiro <apinheiro@igalia.com>
Cc: Scott Marlowe <smarlowe@g2switchworks.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Performance problem with Sarge compared with Woody
Date: Tue, 12 Sep 2006 11:13:14 -0400
Message-ID: <16370.1158073994@sss.pgh.pa.us> (raw)
In-Reply-To: <1158045507.3851.15.camel@codfix.local.igalia.com>
References: <1157998456.7540.15.camel@codfix.local.igalia.com>
<1158012437.1854.15.camel@state.g2switchworks.com>
<1158045507.3851.15.camel@codfix.local.igalia.com>
=?ISO-8859-1?Q?Pi=F1eiro?= <apinheiro@igalia.com> writes:
> * About Postgre version: you advice me to upgrade from 7.4.7 (postgre
> version at sarge) to 8.2. Well, I don't want to be a troll, but I
> upgrade from 7.2.1 (woody) to 7.4.7 and I get worse, do you really think
> that upgrade to 8.1 will solve something?
If you really want informed answers rather than speculation, show us
EXPLAIN ANALYZE reports for the problem query on both machines.
I don't offhand know why 7.4 would be slower, but I speculate
that it's picking a worse plan for some reason.
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, apinheiro@igalia.com, smarlowe@g2switchworks.com
Subject: Re: Performance problem with Sarge compared with Woody
In-Reply-To: <16370.1158073994@sss.pgh.pa.us>
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