my @pre_objects;
for my $me_pref (@pre_vals) {
+
+ # FIXME - this should not be necessary
+ # the collapser currently *could* return bogus elements with all
+ # columns set to undef
+ my $has_def;
+ for (values %{$me_pref->[0]}) {
+ if (defined $_) {
+ $has_def++;
+ last;
+ }
+ }
+ next unless $has_def;
+
push @pre_objects, $pre_source->result_class->inflate_result(
$pre_source, @$me_pref
);