@Override
        public String convert(Object dbzObj, Schema schema) throws Exception {
            return dbzObj.toString();
        }
Converter that converts objects of Debezium to String.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/mysql-cdc/src/main/java/org/apache/inlong/sort/cdc/mysql/table/OldFieldMetadataConverter.java