nsivabalan commented on issue #2522:
URL: https://github.com/apache/hudi/issues/2522#issuecomment-772662864


   @sleapfish : do you mean to say that, you can't control your source and 
hence it could fetch unchanged records as well to do upserts to Hudi? And with 
this, you want to ignore records already in Hudi(matching all values for an 
incoming row) and upsert only those records that has any changes? 
   Would you mind going over this. 


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