# File lib/innodb/data_dictionary.rb, line 579
  def clustered_index_name_by_table_name(table_name)
    unless table_record = table_by_name(table_name)
      raise "Table #{table_name} not found"
    end

    if index_record = object_by_two_fields(:each_index,
                                           "TABLE_ID", table_record["ID"],
                                           "TYPE", 3)
      index_record["NAME"]
    end
  end