HIVE-5271: Convert join op to a map join op in the planning phase (Vikram Dixit K via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1527686 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5368: Changes to work creation for tez (Vikram Dixit K via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1527689 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5387: Need to create edge properties for hive on tez (Vikram Dixit K via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1527791 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5378: Need to move SetReducerParallelism to the optimize package. (Vikram Dixit K via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1527812 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5389: custom LogicalIOProcessor - map record processor (Thejas M Nair via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1527855 13f79535-47bb-0310-9956-ffa450edef68