HIVE-6537 NullPointerException when loading hashtable for MapJoin directly (Sergey Shelukhin and Navis, reviewed by Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1575345 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6537 ADDENDUM - committed extra file (Sergey Shelukhin)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1575348 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6555 : TestSchemaTool is failing on trunk after branching (Ashutosh Chauhan via Prasad Mujumdar)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1575379 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6566: Incorrect union-all plan with map-joins on Tez (Gunther Hagleitner, reviewed by Sergey Shelukhin)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1575389 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6571: query id should be available for logging during query compilation (Gunther Hagleitner, reviewed by Sergey Shelunkhin)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1575398 13f79535-47bb-0310-9956-ffa450edef68