[GitHub] [iceberg] mazhiyu123 edited a comment on issue #3114: after set 'write.upsert.enable'='true' in flink sql, using flink sql read iceberg table will get exception: java.lang.IllegalArgumentException: Row arity: 3, but serializer arity: 2

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mazhiyu123 edited a comment on issue #3114:
URL: https://github.com/apache/iceberg/issues/3114#issuecomment-919006807


   > Hi @mazhiyu123 , I think you will need to apply this PR to your own branch: #2731
   
   thank you for replying soon!!!
   
   I already try this [#2731](https://github.com/apache/iceberg/pull/2731) , but i will get a new situation:
   when i insert data  with same primary key on one sql, iceberg table will has duplicate data. such as:
    insert sql:
   INSERT INTO  hadoop_catalog.iceberg_db.sample_test  VALUES (14, 'test14'), (14, 'test14_update');
   
   select sql:
   select * from hadoop_catalog.iceberg_db.sample_test;
   
   expect : 
                           id                      data
                           14             test14_update
   
   but it return:
                           id                      data
                           14             test14_update
                           14                    test14
    


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