public static ChangedLsn of(long transactionId, long fileOffset) {
    return new ChangedLsn(transactionId, fileOffset);
  }
Global row sequence number.

<p>Consist of two parts:

<ul>
  <li>id of transaction row written into the table
  <li>row sequence within the transaction
</ul>
amoro-format-iceberg/src/main/java/org/apache/amoro/data/ChangedLsn.java