HIVE-5372 : Refactor TypeInfo and PrimitiveTypeEntry class hierachy to eliminate info repetition (Xuefu Zhang via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1529771 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5391 : make ORC predicate pushdown work with vectorization (Sergey Shelukhin via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1529772 13f79535-47bb-0310-9956-ffa450edef68