class ActiveRecord::SchemaDumper

def indexes(table, stream)
  if (indexes = @connection.indexes(table)).any?
    add_index_statements = indexes.map do |index|
      table_name = remove_prefix_and_suffix(index.table).inspect
      "  add_index #{([table_name] + index_parts(index)).join(', ')}"
    end
    stream.puts add_index_statements.sort.join("\n")
    stream.puts
  end
end