On Fri, Sep 2, 2016 at 8:49 AM, Andres Freund <and...@anarazel.de> wrote: > On 2016-09-02 08:31:42 +0530, Robert Haas wrote: >> I wonder whether we ought to just switch from the consistent method to >> the semiconsistent method and call it good. > > +1. I think, before long, we're going to have to switch away from having > locks & partitions in the first place. So I don't see a problem relaxing > this. It's not like that consistency really buys you anything... I'd > even consider not using any locks.
I think we certainly want to lock the buffer header, because otherwise we might get a torn read of the buffer tag, which doesn't seem good. But it's not obvious to me that there's any point in taking the lock on the buffer mapping partition; I'm thinking that doesn't really do anything unless we lock them all, and we all seem to agree that's going too far. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers