protected void markSequence(long sequence) {
    if (fromSequence == null || fromSequence > sequence) {
      fromSequence = sequence;
    }
    if (toSequence == null || toSequence < sequence) {
      toSequence = sequence;
    }
  }
If the Data file is not added, it's Delete files should not be removed from iceberg
amoro-format-iceberg/src/main/java/org/apache/amoro/optimizing/plan/AbstractPartitionPlan.java