public function rightJoin($table, $column, $operator = null, $value = null)
    {
        if ($column instanceof \Closure) {
            $where = new Where();
            call_user_func_array($column, [ &$where ]);
        } else {
            $where = ( new Where())
                ->where($column, $operator, $value);
        }

        $this->request[ 'rightJoin' ][ $table ][ 'table' ] = $table;
        $this->request[ 'rightJoin' ][ $table ][ 'where' ] = $where;

        return $this;
    }