"kenneth d'souza" <kd_souza(at)hotmail(dot)com> writes: > Is there any reason why the function must have got renamed from > HeapTupleSatisfiesSnapshot to HeapTupleSatisfiesMVCC. The old name was misleading, because all those functions work with "snapshots" in the sense of "values of type Snapshot". See http://archives.postgresql.org/pgsql-committers/2007-03/msg00316.php regards, tom lane