Andrew Dunstan <[EMAIL PROTECTED]> writes:
> The attached patch sets the OID to InvalidOid for the duration of the
> memcmp if the HEAP_HASOID flag is set, and restores it afterwards.
This method is utterly, utterly unacceptable; you're probably trashing
the contents of a disk buffer there. Even assuming that there's zero
risk of a failure between the set and the restore, what if someone is in
process of writing the buffer to disk? Or even just examining the old
tuple?
regards, tom lane
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