HIVE-8869 : RowSchema not updated for some ops when columns are pruned (Jesús Camacho Rodríguez via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1640227 13f79535-47bb-0310-9956-ffa450edef68
HIVE-8879 : Upgrade derby version to address race candition (Roshan Naik via Sushanth Sowmyan)


git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1640244 13f79535-47bb-0310-9956-ffa450edef68
HIVE-8891 - Another possible cause to NucleusObjectNotFoundException from drops/rollback (Chaoyu Tang via Brock)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1640250 13f79535-47bb-0310-9956-ffa450edef68