public BinlogOffset getHighWatermark() {
        return highWatermark;
    }
The information used to describe a finished snapshot split.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/mysql-cdc/src/main/java/org/apache/inlong/sort/cdc/mysql/source/split/FinishedSnapshotSplitInfo.java