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From: Kevin Grittner <Kevin.Grittner@wicourts.gov>
To: pgsql-admin@postgresql.org <pgsql-admin@postgresql.org>
To: Glyn Astill <glynastill@yahoo.co.uk>
Subject: Re: Reindexing primary keys without locking
Date: Wed, 01 Jun 2011 08:52:00 -0500
Message-ID: <4DE5FDB0020000250003DF78@gw.wicourts.gov> (raw)
In-Reply-To: <35505.8950.qm@web26008.mail.ukl.yahoo.com>
References: <35505.8950.qm@web26008.mail.ukl.yahoo.com>

Glyn Astill <glynastill@yahoo.co.uk> wrote:
 
> Does anyone know of any tricks to replace primary key indexes
> without using reindex? Or any other method that will not lock the
> table for an extended amount of time on 8.4?
> 
> I've got a bloated primary key index on a table and I'd like to
> try and clean it up without downtime.
 
You could create a unique index concurrently on the same columns. 
Perhaps that would help with performance problems from the bloat
until you had a window to drop the redundant index and reindex the
table?
 
-Kevin



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