From: Bruce Momjian <maillist@candle.pha.pa.us>
To: darrenk@insightdist.com
Cc: pgsql-hackers@postgreSQL.org
Subject: Re: [HACKERS] char types gone.
Date: Tue, 24 Mar 1998 21:38:35 -0500 (EST)
Message-ID: <199803250239.VAA24516@candle.pha.pa.us> (raw)
In-Reply-To: <9803241510.AA33040@ceodev>
> > 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.
--
Bruce Momjian | 830 Blythe Avenue
maillist@candle.pha.pa.us | Drexel Hill, Pennsylvania 19026
+ If your life is a hard drive, | (610) 353-9879(w)
+ Christ can be your backup. | (610) 853-3000(h)
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To: pgsql-hackers@postgresql.org
Cc: maillist@candle.pha.pa.us, darrenk@insightdist.com
Subject: Re: [HACKERS] char types gone.
In-Reply-To: <199803250239.VAA24516@candle.pha.pa.us>
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