HIVE-7703 : Dont recompute partition list between optiq and hive planning (Ashutosh Chauhan via Harish Butani)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/cbo@1617743 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7716 : Make cbo_correctness.q tests run on partitioned tables (Ashutosh Chauhan via Harish Butani)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/cbo@1617777 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7718 : Add tests for cte for cbo (Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/cbo@1617890 13f79535-47bb-0310-9956-ffa450edef68