HIVE-7235 : TABLESAMPLE on join table is regarded as alias (Navis via Harish Butani)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1605005 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6564 : WebHCat E2E tests that launch MR jobs fail on check job completion timeout (Deepesh Khandelwal via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1605006 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7241 : Wrong lock acquired for alter table rename partition (Alan Gates via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1605007 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7242 : alter table drop partition is acquiring the wrong type of lock (Alan Gates via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1605008 13f79535-47bb-0310-9956-ffa450edef68