Adam Witney <[EMAIL PROTECTED]> writes:
> Whats the best way to zero the bad block?

Probably dd from /dev/zero, along the lines of

        dd bs=8k seek=597621 count=1 conv=notrunc if=/dev/zero of=relation

(check this before you apply it ;-)).  You probably should stop the
postmaster while doing this, in case it has a cached copy of the page.

                        regards, tom lane

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