HyukjinKwon commented on a change in pull request #23882:
[SPARK-26979][PySpark] Add missing column name support for some SQL functions
URL: https://github.com/apache/spark/pull/23882#discussion_r261913433
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File path: python/pyspark/sql/functions.py
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@@ -48,6 +48,17 @@ def _(col):
return _
+def _create_function(name, doc=""):
+ """ Create a column-based function by name"""
Review comment:
`Running ./dev/run-tests and testing manually.` doesn't look testing it.
Please test it manually at least.
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