HIVE-5071 : Address thread safety issues with HiveHistoryUtil (Teddy Choi reviewed by Edward Capriolo committed by Navis)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1520979 13f79535-47bb-0310-9956-ffa450edef68
HIVE-1511

Summary: Hive Plan Serialization

Test Plan: Regression test suite

Reviewers: brock

Reviewed By: brock

Differential Revision: https://reviews.facebook.net/D12789

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1521110 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4492 : Revert HIVE4322 (Samuel Yuan and Ashutosh Chauhan via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1521120 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5239 : LazyDate goes into irretrievable NULL mode once inited with NULL once (Jason Dere via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1521136 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4871 : Apache builds fail with Target make-pom does not exist in the project hcatalog (Eugene Koifman via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1521143 13f79535-47bb-0310-9956-ffa450edef68