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Re: Block-level CRC checks

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Florian Weimer <fweimer(at)bfk(dot)de>
Cc: Simon Riggs <simon(at)2ndQuadrant(dot)com>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Aidan Van Dyk <aidan(at)highrise(dot)ca>, Alvaro Herrera <alvherre(at)commandprompt(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Block-level CRC checks
Date: 2009-12-01 15:15:36
Message-ID: 1056.1259680536@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
Florian Weimer <fweimer(at)bfk(dot)de> writes:
> What about putting the whole visibility information out-of-line, into
> its own B-tree, indexed by page number?

Hint bits need to be *cheap* to examine.  Otherwise there's little
point in having them at all.

			regards, tom lane

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