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

        return $this->addUsingAlias(PictureTableMap::COL_THUMB_URL, $thumbUrl, $comparison);
    }