"Simon Riggs" <simon@2ndquadrant.com> writes:
> In this thread, I outlined an idea for reducing cost of WAL CRC checking
> http://archives.postgresql.org/pgsql-hackers/2006-10/msg01299.php
> wal_checksum = on (default) | off
This still seems awfully dangerous to me.
> Recovery can occur with/without same setting of wal_checksum, to avoid
> complications from crashes immediately after turning GUC on.
Surely not. Otherwise even the "on" setting is not really a defense.
regards, tom lane