davidzollo commented on issue #4388:
URL: https://github.com/apache/seatunnel/issues/4388#issuecomment-2824606326

   > any other ideas? [@EricJoy2048](https://github.com/EricJoy2048) there are 
not all connectors support cdc There could be any sql based table or file. What 
is best pattern to offset already loaded or computed data in the source and 
sink only difference? some time there could be an issue or network blinking or 
technical maintain hours and need to be sure in when I turn on seatunnel it 
didn't load the full data again or will not making any overwork.
   
   Yes, you're right. we can enable `upsert` on the sink connector if the sink 
side can support `upsert` and use `checkpoint` is also a good method to avoid 
loading full data again.


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