@Override
    public Offset newOffset(Map<String, String> offset) {
        return new PostgresOffset(offset);
    }
The factory to create {@link PostgresOffset}.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/postgres-cdc/src/main/java/org/apache/inlong/sort/cdc/postgres/source/offset/PostgresOffsetFactory.java