Github user map222 commented on a diff in the pull request:
https://github.com/apache/spark/pull/17469#discussion_r109225302
--- Diff: python/pyspark/sql/column.py ---
@@ -250,11 +250,39 @@ def __iter__(self):
raise TypeError("Column is not iterable")
# string methods
+ _rlike_doc = """ Return a Boolean :class:`Column` based on a regex
match.\n
+ :param other: an extended regex expression\n
+
+ >>> df.filter( df.name.rlike('ice$') ).collect()
+ [Row(name=u'Alice', age=1)]
+ """
+ _like_doc = """ Return a Boolean :class:`Column` based on a SQL LIKE
match.\n
+ :param other: a SQL LIKE pattern\n
+ See :func:`pyspark.sql.Column.rlike` for a regex version\n
+
+ >>> df.filter( df.name.like('Al%') ).collect()
+ [Row(name=u'Alice', age=1)]
+ """
+ _startswith_doc = ''' Return a Boolean :class:`Column` based on a
string match.\n
--- End diff --
Are [these the Scala
docs](http://spark.apache.org/docs/latest/api/scala/index.html#org.apache.spark.sql.Column@rlike(literal:String):org.apache.spark.sql.Column)
you're referring to? It looks like the Scala Column docs are missing examples
for a couple more functions that are documented in python (substr, isin). I
could expand the ticket / PR to include Scala examples for all of these
functions. I also noticed isNull and isNotNull are not document either.
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