Backup Strategies?

[Joshua Kramer <josh@xxxxxxxxxxxxxxxx>]

Hello All,

What strategies are people using for automated, script-based backup of 
databases?  There are a few I can think of:

1. Create a "db_backup" unix user and a "db_backup" pgsql user.  Grant 
READ access to all objects on all databases for the "db_backup" pgsql 
user.  Create a .pgpass file in the home directory of the "db_backup" unix 
user.  Backup as needed with a script run as the "db_backup" unix user.

2. Create a "db_backup" unix user and repeat above, except using the 
"postgres" db user.

Thanks,
-Josh