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/branches/branch-0.14@1646048 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/branches/branch-0.14@1646049 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/branches/branch-0.14@1646056 13f79535-47bb-0310-9956-ffa450edef68
HIVE-9108 : Fix for HIVE-8735 is incorrect (stats with long paths) (Sergey Shelukhin, reviewed by Jason Dere)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/branch-0.14@1646120 13f79535-47bb-0310-9956-ffa450edef68