On Fri, 2008-10-17 at 13:59 -0300, Alvaro Herrera wrote:
> > It might be possible to have a partial solution where some blocks have
> > CRC checks, some not.
>
> That's another idea but it reduces the effectiveness of the check.
If you put in a GUC to control the check, block by block. 0 = check
every time, with full impact. Other values delay the use of CRC checks.
Kind of like freezing parameters. Let people choose.
-- Simon Riggs www.2ndQuadrant.comPostgreSQL Training, Services and Support