Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/5802#discussion_r29482265
--- Diff: python/pyspark/sql/functions.py ---
@@ -135,6 +158,24 @@ def sparkPartitionId():
return Column(sc._jvm.functions.sparkPartitionId())
+def struct(*cols):
+ """Creates a new struct column.
+
+ :param cols: list of column names (string) or list of :class:`Column`
expressions
+ that are named or aliased.
+
+ >>> df.select(struct('age', 'name').alias("struct")).collect()
+ [Row(struct=[u'2', u'Alice']), Row(struct=[u'5', u'Bob'])]
+ >>> df.select(struct([df.age, df.name]).alias("struct")).collect()
+ [Row(struct=[u'2', u'Alice']), Row(struct=[u'5', u'Bob'])]
--- End diff --
I think there is a bug with struct type conversion in Python (see age
becomes a string). Will file a separate jira to fix this one.
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