[GitHub] spark issue #9565: [SPARK-11593][SQL] Replace catalyst converter with RowEnc...

[koertkuipers <gi...@git.apache.org>]

Github user koertkuipers commented on the issue:

    https://github.com/apache/spark/pull/9565
  
    i think this would be very helpful. the difference in behaviour of scala udfs and scala functions used in dataset transformations is a constant source of confusion for my users. 
    
    for example the lack of support for Option to declare nullable input types, and the need to use untyped Row objects in UDFs for structs are inconsistent with how things are done when Encoders are used.  


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