@org.apache.thrift.annotation.Nullable
    public static _Fields findByThriftId(int fieldId) {
      switch(fieldId) {
        case 1: // HEADER_NAMES
          return HEADER_NAMES;
        case 2: // ROWS
          return ROWS;
        case 3: // PROGRESSED_PERCENTAGE
          return PROGRESSED_PERCENTAGE;
        case 4: // STATUS
          return STATUS;
        case 5: // FOOTER_SUMMARY
          return FOOTER_SUMMARY;
        case 6: // START_TIME
          return START_TIME;
        default:
          return null;
      }
    }
Find the _Fields constant that matches fieldId, or null if its not found.
service-rpc/src/gen/thrift/gen-javabean/org/apache/hive/service/rpc/thrift/TProgressUpdateResp.java