sin70611 opened a new issue, #8759:
URL: https://github.com/apache/seatunnel/issues/8759

   ### Search before asking
   
   - [x] I had searched in the 
[issues](https://github.com/apache/seatunnel/issues?q=is%3Aissue+label%3A%22bug%22)
 and found no similar issues.
   
   
   ### What happened
   
   I synchronized multitable from Oracle  to Kafka, One table has a column with 
default value 'N'. and I find that a record inserted into the table with value 
'null', but the CDC to Kafka column value is 'N';
   
   ### SeaTunnel Version
   
   2.3.8
   
   ### SeaTunnel Config
   
   ```conf
   Hybrid Mode Cluster
   ```
   
   ### Running Command
   
   ```shell
   {
       "sink" : [
           {
               "format" : "compatible_debezium_json",
               "topic" : "${table_name}",
               "bootstrap.servers" : "xx.xx.xx.xx:9092",
               "source_table_name" : "t1",
               "kafka.request.timeout.ms" : 6000,
               "semantics" : "AT_LEAST_ONCE",
               "plugin_name" : "kafka",
               "kafka.config" : {
                   "request.timeout.ms" : 6000,
                   "acks" : "all",
                   "buffer.memory" : 33554432
               }
           }
       ],
       "source" : [
           {
               "base-url" : "jdbc:oracle:thin:@xx.xx.xx.xx:1521:xx",
               "startup.mode" : "latest",
               "debezium" : {
                   "key.converter.schemas.enable" : false,
                   "value.converter.schemas.enable" : false,
                   "database.server.name" : "XXX",
                   "include.schema.changes" : true
               },
               "table-names" : [
                   "AAA.BBB.CCC"
               ],
               "format" : "compatible_debezium_json",
               "result_table_name" : "t1",
               "database-names" : [
                   "AAA"
               ],
               "schema-names" : [
                   "BBB"
               ],
               "plugin_name" : "Oracle-CDC",
               "skip_analyze" : true,
               "password" : "XXX",
               "source.reader.close.timeout" : 120000,
               "username" : "XXX"
           }
       ],
       "env" : {
           "job.mode" : "STREAMING",
           "job.name" : "XXX",
           "read_limit.bytes_per_second" : 7000000,
           "parallelism" : 1,
           "read_limit.rows_per_second" : 400,
           "checkpoint.interval" : 5000
       }
   }
   ```
   
   ### Error Exception
   
   ```log
   it run normal with no error information
   ```
   
   ### Zeta or Flink or Spark Version
   
   zeta
   
   ### Java or Scala Version
   
   11
   
   ### Screenshots
   
   _No response_
   
   ### Are you willing to submit PR?
   
   - [x] Yes I am willing to submit a PR!
   
   ### Code of Conduct
   
   - [x] I agree to follow this project's [Code of 
Conduct](https://www.apache.org/foundation/policies/conduct)
   


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