@VisibleForTesting
  public <T extends Serializable> Iterator<T> valuesForTest(String columnFamilyName) {
    return new ValueIteratorForTest<>(rocksDB.newIterator(handleMap.get(columnFamilyName)));
  }
Return Iterator of key-value pairs from RocksIterator.

@param columnFamilyName Column Family Name
amoro-format-iceberg/src/main/java/org/apache/amoro/utils/map/RocksDBBackend.java