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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2021/03/10 11:19:55 UTC

[GitHub] [spark] HyukjinKwon commented on pull request #31735: [SPARK-34600][Pyspark][SQL] Return User-defined types from Pandas UDF

HyukjinKwon commented on pull request #31735:
URL: https://github.com/apache/spark/pull/31735#issuecomment-795271341


   @eddyxu, would you mind checking with no-op UDF vs no-op pandas UDF? e.g.) creating a DataFrame with an UDT, and just pass as is. I am asking this because I did try similar implementation (for something else) before by using `apply` at https://github.com/apache/spark/pull/31735/files#diff-f488fb6f95fc62225d12b7895ca4a17081a7de2f6c4dc77272c7bd6694649706R166-R170 and the performance was pretty bad.


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