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

Reply via email to