[ADMIN] PostgreSQL backup issue

[Eric Yum]

Dear all   I am using PostgreSQL 7.3 as DB server in my company. I am preparing some DB backup and maintenance procedures. I found from Administrator guide that we can use “dump” command to backup the DB. It just allow me to backup the whole DB and restore the whole DB. I wonder that is any command or feature in PostgreSQL allow me to have incremental backup policy like SQL Server. In addition, when I restore the DB, is it possible to select the specify time frame to restore.   Million Thanks.   Best Regards, Eric Yum