public function rselect_all($table, $fields = [], array $where = [], array $order = [], $limit = 0, $start = 0): ?array
  {
    if ( $r = $this->_exec(...$this->_add_kind(\func_get_args())) ){
      if ( \is_object($r) ){
        return $r->get_rows();
      }
      $this->log('ERROR IN RSELECT_ALL', $r);
    }
    return [];
  }