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Re: Page-level version upgrade (was: Block-level CRC checks)

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Greg Stark <gsstark(at)mit(dot)edu>
Cc: decibel <decibel(at)decibel(dot)org>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, 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: Page-level version upgrade (was: Block-level CRC checks)
Date: 2009-12-01 22:21:43
Message-ID: 200912012221.nB1MLhS18590@momjian.us (view raw or flat)
Thread:
Lists: pgsql-hackers
Greg Stark wrote:
> On Tue, Dec 1, 2009 at 9:58 PM, decibel <decibel(at)decibel(dot)org> wrote:
> > What happened to the work that was being done to allow a page to be upgraded
> > on the fly when it was read in from disk?
> 
> There were no page level changes between 8.3 and 8.4.

Yea, we have the idea of how to do it (in cases where the page size
doesn't increase), but no need to implement it in 8.3 to 8.4.

-- 
  Bruce Momjian  <bruce(at)momjian(dot)us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +

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