Orthogonal to this thread, but: On Tue, Apr 30, 2013 at 06:39:09PM -0400, Greg Smith wrote: > The WAL logging of hint bits is where the scary stuff to me for this > feature has always been at. My gut feel is that doing that needed to > start being available as an option anyway. Just this month we've had > two customer issues pop up where we had to look for block differences > between a master and a standby. The security update forced some normal > update stragglers to where they now have the 9.1.6 index corruption fix, > and we're looking for cases where standby indexes might have been > corrupted by it. In this case the comparisons can just avoid anything > but indexes, so hint bits are thankfully not involved.
B-tree indexes have hints; see callers of ItemIdMarkDead(). -- Noah Misch EnterpriseDB http://www.enterprisedb.com -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers