TABLE READ</code>
   isolation level.  This choice ensures that if a query performs multiple
   table scans on the remote server, it will get snapshot-consistent results
   for all the scans.  A consequence is that successive queries within a
   single transaction will see the same data from the remote server, even if
   concurrent updates are occurring on the remote server due to other
   activities.  That behavior would be expected anyway if the local
   transaction uses <code class="literal">SERIALIZABLE