On 13.12.2010 20:30, Tom Lane wrote:
Can we fix it so that each child page is updated, and its downlink inserted, as a separate atomic action? That'd require each intermediate state to be consistent and crash-safe, but I think you really need the intermediate states to be consistent anyway because of concurrent scans.
Yes, all the intermediate states are consistent. I'm looking at that approach as we speak. The logic to track what we've done and what needs to be done as the changes are propagated gets quite hairy, but in principle it should work.
-- 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
