Re: merge>hash>loop

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com>
Cc: Markus Schaber <schabi(at)logix-tt(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: merge>hash>loop
Date: 2006-04-18 22:22:26
Message-ID: 19388.1145398946@sss.pgh.pa.us
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"Jim C. Nasby" <jnasby(at)pervasive(dot)com> writes:
> Actually, if you run with stats_block_level turned on you have a
> first-order approximation of what is and isn't cached.

Only if those stats decayed (pretty fast) with time; which they don't.

regards, tom lane

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