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
HIVE-4550 local_mapred_error_cache fails on some hadoop versions (Gunther 
Hagleitner via omalley)


git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1483124 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4486 FetchOperator slows down SMB map joins by 50% when there are many 
partitions (Gopal V via omalley)


git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1483874 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch 'upstream/trunk' into HIVE-2206-3671