HIVE-7524 : Enable auto conversion of SMBjoin in presence of constant propagate optimization (Ashutosh Chauhan via Vikram Dixit)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1614212 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7424 : HiveException: Error evaluating concat(concat('      ', str2), '      ') in ql.exec.vector.VectorSelectOperator.processOp (Matt McCline via Jitendra Nath Pandey)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1614241 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6601 : alter database commands should support schema synonym keyword (Navis reviewed by Thejas M Nair)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1614262 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7497 : Fix some default values in HiveConf (Dong Chen reviewed by Brock Noland, Navis)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1614279 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7535: Make use of number of nulls column statistics in filter rule (Prasanth J via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1614504 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7536: Make use of decimal column statistics in statistics annotation (Prasanth J via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1614505 13f79535-47bb-0310-9956-ffa450edef68
Merge latest trunk into cbo branch. (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/cbo@1614514 13f79535-47bb-0310-9956-ffa450edef68