"Simon Riggs" <simon(at)2ndquadrant(dot)com> writes:
> Instead, I'd like to include a parameter to turn off CRC altogether, for
> heavily CPU bound operations and the WAL drive on trustworthy hardware.
No can do --- we rely on the checksums to be able to tell when we've hit
the end of WAL during replay. You may as well propose not writing WAL
at all (and no, I don't think it'd pass).
regards, tom lane