From: Bruce Momjian <pgman@candle.pha.pa.us>
Message-Id: <200211020348.gA23m0w10244@candle.pha.pa.us>
Subject: Re: Different size in the DATA directory
In-Reply-To: <3DC2A578.6040605@perdue.net>
To: Tim Perdue <tim@perdue.net>
Date: Fri, 1 Nov 2002 22:48:00 -0500 (EST)
Cc: =?ISO-8859-1?Q?Maur=EDcio_Sessue_Otta?= <mauricio@cristorei.com.br>,
	pgsql-sql@postgresql.org
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Tim Perdue wrote:
> I had this same problem with 7.1.x, even doing full vacuums on 
> SourceForge.net last year.
> 
> I assumed after a while that there was some hidden bug where file bloat 
> occurred, despite the vacuum. After 3 months or so, you'd have to 
> dump/restore the entire db and you'd be golden for a while again. After 
> the dump/restore process things seemed much snappier too, and vacuum ran 
> almost instantly.
> 
> I haven't verified if this problem still occurs in 7.2.x, using vacuum full.

Tim, I guess your problem is dead index pages that can't be reclaimed,
and it isn't fixed in 7.3.  Only REINDEX fixes it, and we have a
/contrib/reindexdb script in 7.3.

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