On 22.12.2010 17:31, Simon Riggs wrote:
> On Wed, 2010-12-22 at 17:01 +0200, Heikki Linnakangas wrote:
>> Do you envision that the CRC is calculated at every update, or only when
>> a page is written out from the buffer cache?
>
> At every update, so there is a clear assertion that the CRC matches the
> block.
Umm, when do you check the CRC? Every time the page is locked? Every
time it's updated? If don't verify the CRC, what is it good for?
-- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com