HIVE-4167 : Hive converts bucket map join to SMB join even when tables are not sorted (Namit Jain via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/branch-0.11@1471639 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4105 : Hive MapJoinOperator unnecessarily deserializes values for all join-keys (Vinod KV via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/branch-0.11@1471641 13f79535-47bb-0310-9956-ffa450edef68