public MySqlSnapshotSplit toMySqlSplit() {
        final MySqlSnapshotSplit snapshotSplit = split.asSnapshotSplit();
        return new MySqlSnapshotSplit(
                snapshotSplit.asSnapshotSplit().getTableId(),
                snapshotSplit.splitId(),
                snapshotSplit.getSplitKeyType(),
                snapshotSplit.getSplitStart(),
                snapshotSplit.getSplitEnd(),
                getHighWatermark(),
                snapshotSplit.getTableSchemas());
    }
The state of split to describe the binlog of MySql table(s).
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/mysql-cdc/src/main/java/org/apache/inlong/sort/cdc/mysql/source/split/MySqlSnapshotSplitState.java