On Dec 1, 2010, at 2:59 PM, Robert Haas wrote: > 2. Hint bits are necessary because an old XID can't be viewed as > guaranteed committed.
Hmm... I thought hint bits were necessary because it's too expensive to query CLOG for every tuple. If my understanding is correct then if we fix the CLOG performance issue we don't need hint bits anymore. -- Jim C. Nasby, Database Architect j...@nasby.net 512.569.9461 (cell) http://jim.nasby.net -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
