From: Bruce Momjian <maillist@candle.pha.pa.us>
Message-Id: <199803250239.VAA24516@candle.pha.pa.us>
Subject: Re: [HACKERS] char types gone.
To: darrenk@insightdist.com (Darren King)
Date: Tue, 24 Mar 1998 21:38:35 -0500 (EST)
Cc: pgsql-hackers@postgreSQL.org
In-Reply-To: <9803241510.AA33040@ceodev> from "Darren King" at Mar 24,
	98 10:10:05 am
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> > Yes, but if they are never referenced, the cache is empty for those
> > types.  Unless there is some performance change with their removal, why
> > remove them?  Disk space of binary?
> 
> How does the cache really work then?  Does one pg disk block map to one buffer?
> 
> When you say "the cache is empty for those types.", what do you mean?

I believe the buffer page cache does load in those types if they are in
the same page as a requsted type, but the relation/function caches only
store in requested relations/functions, as far as I know.

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