HIVE-4714 : Vectorized Sum of scalar subtract column returns negative result when positive exected (Jitendra Nath Pandey via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/vectorization@1492825 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4686 : Max on float returning wrong results (Remus Rusanu via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/vectorization@1492827 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4716 : Classcast exception with two group by keys of types string and tinyint. (Remus Rusanu via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/vectorization@1492828 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4727 : Optimize ORC StringTreeReader::nextVector to not create dictionary of strings for each call to nextVector (Sarvesh Sakalanaga via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/vectorization@1492829 13f79535-47bb-0310-9956-ffa450edef68