HIVE-8947 : HIVE-8876 also affects Postgres < 9.2 (Sergey Shelukhin, reviewed by Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/branch-0.14@1643050 13f79535-47bb-0310-9956-ffa450edef68