HIVE-6430 : MapJoin hash table has large memory overhead (Sergey Shelukhin, reviewed by Gopal V and Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1594713 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7055 : config not propagating for PTFOperator (Ashutosh Chauhan via Harish Butani)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1595234 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7067: Min() and Max() on Timestamp and Date columns for ORC returns wrong results (Prasanth J, reviewed by Jason Dere)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1595302 13f79535-47bb-0310-9956-ffa450edef68
export import input/outpus, privileges, enabled exim test to use sql auth
export already adds output
fix dir emptiness check in export
adding test cases
updating clipositive test results