# File lib/rubyrep/proxy_connection.rb, line 389
    def table_update_query(table, values, org_key = nil)
      org_key ||= values
      query = "update #{quote_table_name(table)} set "
      query << values.map do |column_name, value|
        "#{quote_column_name(column_name)} = #{quote_value(table, column_name, value)}"
      end.join(', ')
      query << " where (" << quote_key_list(table) << ") = ("
      query << primary_key_names(table).map do |key|
        quote_value(table, key, org_key[key])
      end.join(', ') << ")"
    end