HIVE-4440 SMB Operator spills to disk like it's 1999 (Gunther Hagleitner via
omalley)


git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1483084 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd