HIVE-9111: Potential NPE in OrcStruct for list and map types (Prasanth Jayachandran reviewed by Vikram Dixit)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1646046 13f79535-47bb-0310-9956-ffa450edef68
HIVE-9055: Tez: union all followed by group by followed by another union all gives error (Vikram Dixit K, reviewed by Prasanth J)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1646050 13f79535-47bb-0310-9956-ffa450edef68
HIVE-9114 : union all query in cbo test has undefined ordering (Sergey Shelukhin, reviewed by Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1646055 13f79535-47bb-0310-9956-ffa450edef68
HIVE-9091 - Add additional unit tests for HiveSQLException (Aihua Xu via Brock)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1646067 13f79535-47bb-0310-9956-ffa450edef68