HIVE-5604 : Fix validation of nested expressions. (Jitendra Nath Pandey via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1536787 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5668: path normalization in MapOperator is expensive (Thejas Nair reviewed by Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1536845 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5519 : Use paging mechanism for templeton get requests. (Hari Sankar Sivarama Subramaniyan via Thejas Nair)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1536919 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5681 : Validation doesn't catch SMBMapJoin (Jitendra Nath Pandey via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1536995 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' of https://github.com/apache/hive into trunk