HIVE-7453: Partition Pruning enhancements 1 (Laljo John Pullokkaran via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/cbo@1612378 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7468: UDF translation needs to use Hive UDF name (Laljo John Pullokkaran via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/cbo@1612446 13f79535-47bb-0310-9956-ffa450edef68