From: Andrew Sullivan <ajs@crankycanuck.ca>
To: pgsql-admin@postgresql.org
Subject: Re: Tuning
Date: Mon, 7 Apr 2008 13:39:33 -0400
Message-ID: <20080407173933.GA7301@crankycanuck.ca> (raw)
In-Reply-To: <60myo51uml.fsf@dba2.int.libertyrms.com>
References: <6F737A76-FC25-4876-A6E0-163B87ECFAB0@indiana.edu>
<60myo51uml.fsf@dba2.int.libertyrms.com>
On Mon, Apr 07, 2008 at 12:45:38PM -0400, Chris Browne wrote:
> versions of PostgreSQL. e.g. - with v7.2, there were patterns of
> updates that would leave portions of indexes not usable, but the issue
> was rectified in ~7.4, and people have not been observing problems
> relating to this former scenario.
There remain use patterns that will leave the indexes in pretty bad shape.
This is an inherent limiation with btrees, though -- if you just unbalanced
the tree with a large number of deletes, there's nothing you can do except
REINDEX.
A
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To: pgsql-admin@postgresql.org
Cc: ajs@crankycanuck.ca
Subject: Re: Tuning
In-Reply-To: <20080407173933.GA7301@crankycanuck.ca>
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