melin commented on PR #4341: URL: https://github.com/apache/flink-cdc/pull/4341#issuecomment-4766283303
The Flink CDC synchronization encounters a special scenario: `For a composite primary key, if one of the key values is modified and written to the sink, we must determine whether the primary key values before and after the change are identical. If the composite primary key values differ, the system needs to delete the existing data first, and then insert the new data.` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
