mxm commented on PR #26100:
URL: https://github.com/apache/flink/pull/26100#issuecomment-2665315384

   > For the 1st part, my question is since the nullability info provided by 
users are not reliable, why not enforce the use of nullable type when use 
`RowData#createFieldGetter`? Am I missing something here?
   
   I understand where you are coming from, but not all Iceberg writers have the 
concept of "non-null" / required columns. A schema may have certain type 
definitions, but ultimately the writer decides what can be written.


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