"Horst Herb" <hherb(at)malleenet(dot)net(dot)au> writes:
>> Surely you don't trust your TCP connection to the
>> server, either?
> TCP _IS_ heavily checksummed.
Yes, and so are the disk drives that you are asserting you don't trust.
My point is that in both cases, there are lots and lots of failure
mechanisms that won't be caught by the transport or storage CRC.
The same applies to anything other than an end-to-end check.
regards, tom lane