HIVE-4151. HiveProfiler NPE with ScriptOperator. (Pamela Vagata via kevinwilfong)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1465085 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4128 : Support avg(decimal) (Brock Noland via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1465149 13f79535-47bb-0310-9956-ffa450edef68