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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Markus Schaber <schabi@logix-tt.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: merge>hash>loop
Date: Tue, 18 Apr 2006 18:26:48 -0400
Message-ID: <19433.1145399208@sss.pgh.pa.us> (raw)
In-Reply-To: <4444C4CF.2000106@logix-tt.com>
References: <1145029009.3422.31.camel@spectre.intellivid.com>
	<10000.1145031205@sss.pgh.pa.us>
	<1145033149.3422.41.camel@spectre.intellivid.com>
	<11035.1145033929@sss.pgh.pa.us>
	<4444C4CF.2000106@logix-tt.com>

Markus Schaber <schabi@logix-tt.com> writes:
> Hmm, how does effective_cach_size correspond with it? Shouldn't a high
> effective_cache_size have a similar effect?

It seems reasonable to suppose that effective_cache_size ought to be
used as a number indicating how much "stuff" would hang around from
query to query.  Right now it's not used that way...

			regards, tom lane

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