HyukjinKwon commented on a change in pull request #26435: [SPARK-29821][SQL]
Allow calling non-aggregate SQL functions with column name
URL: https://github.com/apache/spark/pull/26435#discussion_r344530892
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File path: python/pyspark/sql/functions.py
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@@ -513,6 +513,8 @@ def isnan(col):
[Row(r1=False, r2=False), Row(r1=True, r2=True)]
"""
sc = SparkContext._active_spark_context
+ if type(col) is str:
+ return Column(sc._jvm.functions.isnan(col))
Review comment:
Can you add a doctest?
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