sub select_single { die "Virtual method!" }
+=head2 reload_row ($row)
+
+given a L<DBIx::Class::Row> object, 'reloads' it from the storage. This will
+destroy any existing changes you have not yet saved.
+
+=cut
+
+sub reload_row { die "Virtual method!" }
+
=head2 columns_info_for
Returns metadata for the given source's columns. This