@Override
    public void deserialize(SourceRecord record, Collector<String> out) throws Exception {
        out.collect(record.toString());
    }
A simple implementation of {@link DebeziumDeserializationSchema} which converts the received
{@link SourceRecord} into String.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/mysql-cdc/src/main/java/org/apache/inlong/sort/cdc/debezium/StringDebeziumDeserializationSchema.java