public function getSearchFields()
    {
        $aSkipFields = ["oxblfixedprice", "oxvarselect", "oxamitemid",
                            "oxamtaskid", "oxpixiexport", "oxpixiexported"];
        $oArticle = oxNew(\OxidEsales\Eshop\Application\Model\Article::class);

        return array_diff($oArticle->getFieldNames(), $aSkipFields);
    }