code: public EntityScannerBuilder<E> addIsMissingFilter(String fieldName) {
      SingleFieldEntityFilter singleFieldEntityFilter = new SingleFieldEntityFilter(
          entityMapper.getEntitySchema(), entityMapper.getEntitySerDe(),
          fieldName, "++++NON_SHALL_PASS++++", CompareFilter.CompareOp.EQUAL);
      SingleColumnValueFilter filter = (SingleColumnValueFilter) singleFieldEntityFilter
          .getFilter();
      filter.setFilterIfMissing(false);
      filterList.add(filter);
      return this;
    }
docs: Only include rows which are missing this field, this was the only possible
  way to do it.
  
  @param fieldName
  The field which should be missing
  @return ScannerBuilder