public function filterByPostscriptum($postscriptum = null, $comparison = null)
    {
        if (null === $comparison) {
            if (is_array($postscriptum)) {
                $comparison = Criteria::IN;
            } elseif (preg_match('/[\%\*]/', $postscriptum)) {
                $postscriptum = str_replace('*', '%', $postscriptum);
                $comparison = Criteria::LIKE;
            }
        }

        return $this->addUsingAlias(PersonImageI18nTableMap::POSTSCRIPTUM, $postscriptum, $comparison);
    }