HIVE-7781 - Enable windowing and analytic function qtests [Spark Branch] (Chengxiang Li via Brock)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/spark@1618950 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7728 - Enable q-tests for TABLESAMPLE feature [Spark Branch] (Chengxiang Li via Brock)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/spark@1618953 13f79535-47bb-0310-9956-ffa450edef68