@Override
        public ChangelogMode getChangelogMode() {
            return SOURCE_CHANGELOG_MODE;
        }
It is used to wrap the decoding format and expose the desired changelog mode. It's only works
for insert-only format.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/pulsar/src/main/java/org/apache/inlong/sort/pulsar/table/UpsertPulsarDynamicTableFactory.java