c2r not right when column type is const

[taiyang-li]

You have to provide the following information whenever possible.

0: jdbc:hive2://localhost:10000/> select sin(null) from range(2);  

+------------+
| SIN(NULL)  |
+------------+
| 0.0        |
| 0.0        |
+------------+
2 rows selected (3.217 seconds)