kudu-protolib/src/main/java/com/streamsets/pipeline/stage/destination/kudu/KuduRecordConverter.java
private String binLogRecordFieldtoSdc(String fieldPath, int operation) {
    if (operation == KuduOperationType.DELETE.code) {
      return "/OldData" + fieldPath;
    }
    return fieldPath;
  }
private String binLogRecordFieldtoSdc(String fieldPath, int operation) {
    if (operation == KuduOperationType.DELETE.code) {
      return "/OldData" + fieldPath;
    }
    return fieldPath;
  }
delete record have /OldData