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Posted to reviews@spark.apache.org by HyukjinKwon <gi...@git.apache.org> on 2018/01/03 00:57:52 UTC

[GitHub] spark issue #18906: [SPARK-21692][PYSPARK][SQL] Add nullability support to P...

Github user HyukjinKwon commented on the issue:

    https://github.com/apache/spark/pull/18906
  
    I think we expect Python native function for `spark.udf.register` for now. Seems another issue.
    Returning `UserDefinedFunction` seems another issue too as it won't show up the pydoc correctly.


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