| From: | decibel <decibel(at)decibel(dot)org> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Simon Riggs <simon(at)2ndQuadrant(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, 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: | Page-level version upgrade (was: Block-level CRC checks) |
| Date: | 2009-12-01 21:58:10 |
| Message-ID: | 66AFAD32-1C91-464A-8020-48B5F08E9EB5@decibel.org |
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| Lists: | pgsql-hackers |
On Dec 1, 2009, at 12:58 PM, Tom Lane wrote:
> The bottom line here seems to be that the only practical way to do
> anything like this is to move the hint bits into their own area of
> the page, and then exclude them from the CRC. Are we prepared to
> once again blow off any hope of in-place update for another release
> cycle?
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?
--
Jim C. Nasby, Database Architect jim(at)nasby(dot)net
512.569.9461 (cell) http://jim.nasby.net
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