CRCs (was Re: [GENERAL] Re: Loading optimization)

"Mikheev, Vadim" <vmikheev@SECTORBASE.COM> writes:
>> Actually, I'd expect the CRC check to catch an all-zeroes page (if
>> it fails to complain, then you misimplemented the CRC), so that would
>> be the place to deal with it now.

> I've used standard CRC32 implementation you pointed me to -:)
> But CRC is used in WAL records only.

Oh.  I thought we'd agreed that a CRC on each stored disk block would
be a good idea as well.  I take it you didn't do that.

Do we want to consider doing this (and forcing another initdb)?
Or shall we say "too late for 7.1"?
        regards, tom lane