> One thing we should look at before going with a 64-bit method is the
> extra storage space for the larger checksum. We can clearly afford
> an extra 32 bits for a checksum on an 8K disk page, but if Vadim is
> envisioning checksumming each individual XLOG record then the extra
> space is more annoying.
We need in checksum for each record. But there is no problem with
64bit CRC: log record header is 8byte aligned, so CRC addition
will add 8bytes to header anyway. Is there any CRC64 code?
Vadim
