HIVE-7957: Revisit event version handling in dynamic partition pruning on Tez (Gunther Hagleitner, reviewed by Vikram Dixit K)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/branch-0.14@1629275 13f79535-47bb-0310-9956-ffa450edef68