234      * @param string $colname
237     public function select(QueryBuilder $QB, $tablealias, $colname, $alias)  argument
242             parent::select($QB, $tablealias, $colname, $alias);
252             "STRUCT_LOOKUP($tablealias.$colname, 0) = $rightalias.pid " .
253             "AND STRUCT_LOOKUP($tablealias.$colname, 1) = $rightalias.rid " .
258         $QB->addSelectStatement("STRUCT_JSON($tablealias.$colname, $sql)", $alias);
266      * @param string $colname
271     public function filter(QueryBuilderWhere $add, $tablealias, $colname, $comp, $value, $op)  argument
276             parent::filter($add, $tablealias, $colname, $comp, $value, $op);
288 …     "$tablealias.$colname = STRUCT_JSON($rightalias.pid, CAST($rightalias.rid AS DECIMAL)) AND " .
299      * @param string $colname
302     public function sort(QueryBuilder $QB, $tablealias, $colname, $order)  argument
307             parent::sort($QB, $tablealias, $colname, $order);
317 …     "$tablealias.$colname = STRUCT_JSON($rightalias.pid, CAST($rightalias.rid AS DECIMAL)) AND " .