Simon Riggs wrote: > I would add that both Heikki and Greg Stark have argued at length that > the visibility map cannot be relied upon in production systems.
It cannot be relied on *in its current form*. There's a hole in crash recovery where it can be left in an inconsistent state. That obviously needs to be fixed before it is relied on for index-only-scans or similar purposes, but it's not an insurmountable problem. -- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers