Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/18659#discussion_r138272886 --- Diff: core/src/main/scala/org/apache/spark/api/python/PythonRDD.scala --- @@ -83,10 +83,23 @@ private[spark] case class PythonFunction( */ private[spark] case class ChainedPythonFunctions(funcs: Seq[PythonFunction]) +/** + * Enumerate the type of command that will be sent to the Python worker + */ +private[spark] object PythonEvalType { + val NON_UDF = 0 + val SQL_BATCHED_UDF = 1 + val SQL_ARROW_UDF = 2 --- End diff -- the new udf parameter is pandas `Series`, I think it's more accurate to call it `SQL_PANDAS_UDF`.
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