message: Silence an over-eager unused argument warning
diff: @@ -166,6 +166,7 @@ Mixed TableView::aggregate(ColKey column_key, size_t* result_count, ObjKey* retu
  }
  else {
  static_cast<void>(last_accumulated_key);
  + static_cast<void>(return_key);
  }
  if (!agg.is_null()) {
  