private Long scanFromSequence(StructLike partitionData) {
    Long fromSequence = null;
    if (fromPartitionSequence != null) {
      fromSequence = fromPartitionSequence.get(partitionData);
    }
    if (fromSequence == null) {
      fromSequence = this.fromSequence;
    }
    return fromSequence;
  }
Table scan for {@link ChangeTable}, support filter files with data sequence number and return
{@link BasicMixedFileScanTask}.
amoro-format-iceberg/src/main/java/org/apache/iceberg/MixedChangeTableScan.java