HIVE-5656 : Hive produces unclear, confusing SemanticException when dealing with mod or pmod by zero (Xuefu Zhang via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1536476 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5666 : use Path instead of String for IOContext.inputPath (Thejas Nair via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1536478 13f79535-47bb-0310-9956-ffa450edef68
Merge trunk into branch

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/maven@1536501 13f79535-47bb-0310-9956-ffa450edef68