HyukjinKwon commented on a change in pull request #29121:
URL: https://github.com/apache/spark/pull/29121#discussion_r454870938
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File path: python/pyspark/sql/functions.py
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@@ -29,9 +29,9 @@
from pyspark.sql.dataframe import DataFrame
from pyspark.sql.types import StringType, DataType
# Keep UserDefinedFunction import for backwards compatible import; moved in
SPARK-22409
-from pyspark.sql.udf import UserDefinedFunction, _create_udf
Review comment:
`UserDefinedFunction` should be kept as described above.
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