AMBARI-2403. ambari-server setup should allow user to change database password

. (Dmitry Lysnichenko via mahadev)

git-svn-id: https://svn.apache.org/repos/asf/incubator/ambari/trunk@1494028 13f79535-47bb-0310-9956-ffa450edef68

ambari-server/src/main/resources/Ambari-DDL-Postgres-CREATE.sql

@@ -19,6 +19,8 @@ CREATE DATABASE ambari;
 
 \connect ambari;
 
+ALTER USER :username WITH ENCRYPTED PASSWORD :password;
+
 CREATE ROLE :username LOGIN ENCRYPTED PASSWORD :password;
 
 CREATE SCHEMA ambari