On Tue, 2008-12-30 at 18:31 +0200, Heikki Linnakangas wrote: > Simon Riggs wrote: > > (a) always ignore LP_DEAD flags we see when reading index during > > recovery. > > This sounds simplest, and it's nice to not clear the flags for the > benefit of transactions running after the recovery is done.
Agreed. (Also: Transaction hint bits are always set correctly, because we would only ever see a full page write with hints set after the commit/abort record was processed. So I continue to honour transaction hint bit reading and setting during recovery). > You have to be careful to ignore the flags in read-only transactions > that started in hot standby mode, even if recovery has since ended and > we're in normal operation now. Got that. I'm setting ignore_killed_tuples = false at the start of any index scan during recovery. And kill_prior_tuples is never set true when in recovery. Both measures are AM-agnostic. -- Simon Riggs www.2ndQuadrant.com PostgreSQL Training, Services and Support -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
