HIVE-8978: Fix test determinism issue for qfile: smb_mapjoin_1.q etc (Jimmy via Xuefu, reviewed by Brock)
merged from trunk, r1642127

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/spark@1642129 13f79535-47bb-0310-9956-ffa450edef68