HyukjinKwon commented on a change in pull request #30181:
URL: https://github.com/apache/spark/pull/30181#discussion_r514213881
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File path: python/pyspark/sql/column.py
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@@ -690,17 +798,22 @@ def between(self, lowerBound, upperBound):
"""
return (self >= lowerBound) & (self <= upperBound)
- @since(1.4)
def when(self, condition, value):
"""
Evaluates a list of conditions and returns one of multiple possible
result expressions.
If :func:`Column.otherwise` is not invoked, None is returned for
unmatched conditions.
- See :func:`pyspark.sql.functions.when` for example usage.
+ .. versionadded:: 1.4.0
- :param condition: a boolean :class:`Column` expression.
- :param value: a literal value, or a :class:`Column` expression.
+ Parameters
+ ----------
+ condition : :class:`Column`
+ a boolean :class:`Column` expression.
+ value :
Review comment:
I simply make it un-typed for simplicity where it takes a column + any
value that a literal supports.
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