public final MySqlSchemalessSnapshotSplit toSchemaLessSnapshotSplit() {
        return new MySqlSchemalessSnapshotSplit(
                tableId, splitId, splitKeyType, splitStart, splitEnd, highWatermark);
    }
Casts this split into a {@link MySqlSchemalessSnapshotSplit}.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/mysql-cdc/src/main/java/org/apache/inlong/sort/cdc/mysql/source/split/MySqlSnapshotSplit.java