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From: Greg Smith <greg@2ndQuadrant.com>
To: pgsql-performance@postgresql.org
Subject: Re: Show_database_bloat reliability? [was: Re: REINDEX not working for wastedspace]
Date: Wed, 21 Sep 2011 12:12:50 -0400
Message-ID: <4E7A0D02.6050808@2ndQuadrant.com> (raw)
In-Reply-To: <m37h5283s4.fsf@mnc.ch>
References: <CAGoODpcBxGLyF=bY3_5opO4YckgJqFGwBxveU_cYsrXBbN4NgQ@mail.gmail.com>
	<m37h5283s4.fsf@mnc.ch>

On 09/21/2011 08:43 AM, Guillaume Cottenceau wrote:
> AI Rumman<rummandba 'at' gmail.com>  writes:
>
>    
>> Using the query http://wiki.postgresql.org/wiki/Show_database_bloat, I got the
>>      
> Is this stuff to show database bloat reliable?

Only in that increase and decreases of the number reported can be useful 
for determining if bloat is likely increasing or decreasing--which is 
the purpose of that query.  The value returned is a rough estimate, and 
should not be considered useful as any sort of absolute measurement.

-- 
Greg Smith   2ndQuadrant US    greg@2ndQuadrant.com   Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support  www.2ndQuadrant.us




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