# File lib/innodb/page/index.rb, line 479
  def record_describer
    return @record_describer if @record_describer

    if space and space.innodb_system and index_id
      @record_describer =
        space.innodb_system.data_dictionary.record_describer_by_index_id(index_id)
    elsif space
      @record_describer = space.record_describer
    end

    @record_describer
  end