On Thu, Dec 11, 2008 at 7:03 PM, Zdenek Kotala <[EMAIL PROTECTED]> wrote:
> > Yes, because it is not simple write operation. You need to read byte from > memory to register, set bit and write it back. Write memory itself is atomic > but somebody could change other bits between read and write. > Yeah, but since its just a hint, we can possibly live with some corner cases. The benefit of avoiding contention on the VM page would easily out weigh the downside of wrong hints. Thanks, Pavan -- Pavan Deolasee 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
