[SPARK-9101] [PySpark] Test for selecting null literal

apache · Jul 20, 2015 · dd75aa6 · dd75aa6
1 parent 97e3f2f
commit dd75aa6
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/python/pyspark/sql/tests.py b/python/pyspark/sql/tests.py
@@ -333,6 +333,10 @@ def test_infer_nested_schema(self):
         df = self.sqlCtx.inferSchema(rdd)
         self.assertEquals(Row(field1=1, field2=u'row1'), df.first())
 
+    def test_select_null_literal(self):
+        df = self.sqlCtx.sql("select null as col")
+        self.assertEquals(Row(col=None), df.first())
+
     def test_apply_schema(self):
         from datetime import date, datetime
         rdd = self.sc.parallelize([(127, -128, -32768, 32767, 2147483647, 1.0,