code: function fetch($column = ''){
          // no $this->select($column) because next calls can access different columns
          $this->execute();
          $return = current($this->data);
          next($this->data);
          if($return && $column != ''){
              return $return[$column];
          }
          return $return;
      }
docs: Fetch next row of result
  
  @param string $column name to return or an empty string for the whole row
  
  @return mixed string or null with $column, NotORM_Row without $column, false if there is no row