[SQL] Fix mistake doc of join type for dataframe.join

yanboliang · rxin · commit eb54c914ad65 · 2015-12-19T00:34:48.000-08:00
Fix mistake doc of join type for ```dataframe.join```. Author: Yanbo Liang <ybliang8@gmail.com> Closes apache#10378 from yanboliang/leftsemi. (cherry picked from commit a073a73) Signed-off-by: Reynold Xin <rxin@databricks.com>
diff --git a/python/pyspark/sql/dataframe.py b/python/pyspark/sql/dataframe.py
@@ -548,7 +548,7 @@ def join(self, other, on=None, how=None):
             If `on` is a string or a list of string indicating the name of the join column(s),
             the column(s) must exist on both sides, and this performs an inner equi-join.
         :param how: str, default 'inner'.
-            One of `inner`, `outer`, `left_outer`, `right_outer`, `semijoin`.
+            One of `inner`, `outer`, `left_outer`, `right_outer`, `leftsemi`.
 
         >>> df.join(df2, df.name == df2.name, 'outer').select(df.name, df2.height).collect()
         [Row(name=None, height=80), Row(name=u'Alice', height=None), Row(name=u'Bob', height=85)]
