@Override
  public OverwriteHiveFiles newOverwrite() {
    return new OverwriteHiveFiles(super.newTransaction(), false, this, hiveClient, hiveClient);
  }
Implementation of {@link UnkeyedTable} with Hive table as base store.
amoro-format-mixed/amoro-mixed-hive/src/main/java/org/apache/amoro/hive/table/UnkeyedHiveTable.java