HIVE-5552 : Merging of QBJoinTrees doesnt handle filter pushdowns correctly (Harish Butani via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1535858 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5440: HiveServer2 doesn't apply SQL operation's config property (Prasad Mujumdar via Thejas Nair)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1535889 13f79535-47bb-0310-9956-ffa450edef68