HIVE-9153: Perf enhancement on CombineHiveInputFormat and HiveInputFormat (Rui via Xuefu)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1648397 13f79535-47bb-0310-9956-ffa450edef68
HIVE-9133: Refactor CBO (Laljo John Pullokkaran via Sergey Shelukhin)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1648399 13f79535-47bb-0310-9956-ffa450edef68
HIVE-8155 :  In select statement after * any random characters are allowed in hive but in RDBMS its not allowed (Dong Chen via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1648436 13f79535-47bb-0310-9956-ffa450edef68