Takuya Ueshin created SPARK-27240:
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Summary: Use pandas DataFrame for struct type argument in Scalar
Pandas UDF.
Key: SPARK-27240
URL: https://issues.apache.org/jira/browse/SPARK-27240
Project: Spark
Issue Type: Improvement
Components: PySpark
Affects Versions: 2.4.0
Reporter: Takuya Ueshin
Now that we support returning pandas DataFrame for struct type in Scalar Pandas
UDF.
If we chain another Pandas UDF after the Scalar Pandas UDF returning pandas
DataFrame, the argument of the chained UDF will be pandas DataFrame, but
currently we don't support pandas DataFrame as an argument of Scalar Pandas
UDF. That means there is an inconsistency between the chained UDF and the
single UDF.
We should support taking pandas DataFrame for struct type argument in Scala
Pandas UDF to be consistent.
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