HIVE-4880 : Rearrange explain order of stages simpler (Navis via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1540485 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5697 : Correlation Optimizer may generate wrong plans for cases involving outer join (Yin Huai via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1540486 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5722 : Skip generating vectorization code if possible (Navis via Brock Noland)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1540487 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5790 : maven test build  failure shows wrong error message (Mohammad Islam via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1540488 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5737 : Provide StructObjectInspector for UDTFs rather than ObjectInspect[] (Navis via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1540489 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5753 : Remove collector from Operator base class (Mohammad Islam via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1540490 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5700 : enforce single date format for partition column storage (Sergey Shelukhin via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1540492 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5626 : enable metastore direct SQL for drop/similar queries (Sergey Shelukhin via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1540493 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5683 : JDBC support for char (Jason Dere via Xuefu Zhang)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1540494 13f79535-47bb-0310-9956-ffa450edef68