public static StartupOptions initial() {
        return new StartupOptions(StartupMode.INITIAL, null);
    }
Performs an initial snapshot on the monitored database tables upon first startup, and
continue to read the latest binlog.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/mysql-cdc/src/main/java/org/apache/inlong/sort/cdc/mysql/table/StartupOptions.java