On Mon, Jan 02, 2012 at 05:09:16PM +0000, Simon Riggs wrote: > Attached patch makes SnapshotNow into an MVCC snapshot, initialised at > the start of each scan iff SnapshotNow is passed as the scan's > snapshot. It's fairly brief but seems to do the trick.
That's a neat trick. However, if you start a new SnapshotNow scan while one is ongoing, the primordial scan's snapshot will change mid-stream. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers