HIVE-4695 : Unit test failure in TestColumnColumnOperationVectorExpressionEvaluation (Jitendra Nath Pandey via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/vectorization@1491974 13f79535-47bb-0310-9956-ffa450edef68