Add SQLAlchemy's tests and fill in some features

Author: jingw

dev_requirements.txt

@@ -3,5 +3,5 @@ pytest
 pytest-cov
 requests>=1.0.0
 sasl>=0.1.3
-sqlalchemy>=0.5.0
+sqlalchemy>=0.9.4
 thrift>=0.8.0

pyhive/hive.py

@@ -123,6 +123,9 @@ def client(self):
     def sessionHandle(self):
         return self._sessionHandle
 
+    def rollback(self):
+        raise NotSupportedError("Hive does not have transactions")
+
 
 class Cursor(common.DBAPICursor):
     """These objects represent a database cursor, which is used to manage the context of a fetch

pyhive/presto.py

@@ -58,6 +58,9 @@ def cursor(self):
         """Return a new :py:class:`Cursor` object using the connection."""
         return Cursor(*self._args, **self._kwargs)
 
+    def rollback(self):
+        raise NotSupportedError("Presto does not have transactions")
+
 
 class Cursor(common.DBAPICursor):
     """These objects represent a database cursor, which is used to manage the context of a fetch