raghukn opened a new issue, #14924:
URL: https://github.com/apache/pinot/issues/14924

   As described in the partial update behavior - 
https://docs.pinot.apache.org/basics/data-import/upsert
   
   **Below case is described:**
   
   ```
   With partial upsert, if the value is null in either the existing record or 
the new coming record, Pinot will ignore the upsert strategy and the null value:
   
   (null, newValue) -> newValue
   
   (oldValue, null) -> oldValue
   
   (null, null) -> null
   ```
   
   This clearly is not desirable all the time as the fact that some one is 
sending null value intends to overwrite existing value. Other wise they would 
not have sent this column / value in the first place.
   
   **How do we get this  behavior work correctly and incoming null not 
ignored?**


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