yihua commented on issue #6321:
URL: https://github.com/apache/hudi/issues/6321#issuecomment-1207679679

   @gtwuser could you provide the Hudi configs you used?  Which Hudi payload 
class do you use?
   
   By default, if the new batch of data only has the partial schema and 
corresponding fields compared to the existing table, it causes undefined 
behavior.  @xiarixiaoyao does schema evolution in Hudi Spark support this?


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