Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/15053#discussion_r84680654
--- Diff: python/pyspark/sql/column.py ---
@@ -320,10 +323,13 @@ def alias(self, *alias):
def cast(self, dataType):
""" Convert the column into type ``dataType``.
+ >>> df = spark.createDataFrame([(2, 'Alice'), (5, 'Bob')], ['age',
'name'])
>>> df.select(df.age.cast("string").alias('ages')).collect()
- [Row(ages=u'2'), Row(ages=u'5')]
+ [Row(ages='2'), Row(ages='5')]
--- End diff --
FYI, the unicode string in Python 3 does not have prefix 'u'. So, this is
being handled via `@ ignore_unicode_prefix`.
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