Veena.I have worked on pgsql past 2 years back.To my knowledge,To configure a PostgreSQL database as a standalone audit log database or to save audit file, just follow this.firstly Gather database information after that create the audit store schema and configure a PostgreSQL Server data source for CA SiteMinder and Point the Policy Server to the database finally restart the policy server.
You can create the logging schema so the pgsql server database can store audit logs.
To create audit logs,Open sm_postgresql_logs.sql in a text editor and copy the contents of the entire file and start a SQL client, such as psql, and log in as the user who administers the Policy Server database.Select the database instance from the database list and paste the schema from sm_postgresql_logs.sql into the query after that execute the query.
The audit log store schema is created in the database.
Hope this will help you.