wangwenzhao1 commented on issue #3774:
URL: https://github.com/apache/flink-cdc/issues/3774#issuecomment-2513734487

   mysql is synchronized to doris for the task performed by Task 1. After full 
synchronization is complete, manually savepoint and stop Task 1
   The structure of a mysql table a was modified. doris deleted this table A 
and performed task 2 to resynchronize this table separately. Task 1 Boot from 
the specified savepoint directory. Incremental data fails to be synchronized
   INFO 
org.apache.doris.flink.sink.writer.serializer.jsondebezium.JsonDebeziumSchemaChangeImplV2
 [] - ddl can not do schema 
change:{"source":{"version":"1.9.7.Final","connector":"mysql","name":"mysql_binlog_source","ts_ms"


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