On Wed, 2008-10-01 at 16:57 +0100, Gregory Stark wrote: > I wonder if we could do something clever here though. Only one process > is busy > calculating the checksum -- it just has to know if anyone fiddles the hint > bits while it's busy.
What if the hint bits are added at the very end to the checksum, with an exclusive lock to them ? Then the exclusive lock should be short enough... only it might be deadlock-prone as any lock upgrade... Cheers, Csaba. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
