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Re: seq scan cache vs. index cache smackdown

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Josh Berkus <josh(at)agliodbs(dot)com>
Cc: Greg Stark <gsstark(at)mit(dot)edu>,Mark Aufflick <mark(at)pumptheory(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: seq scan cache vs. index cache smackdown
Date: 2005-02-15 17:55:19
Message-ID: 14042.1108490119@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-performance
Josh Berkus <josh(at)agliodbs(dot)com> writes:
> Why is mmap not workable?

We can't control write order.  There are other equally bad problems,
but that one alone eliminates it from consideration.  See past discussions.

			regards, tom lane

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