I have a group of users who are running a maintenance-intensive database. This database needs to be vacuumed and dumped as often as every couple of hours. The database owner has asked me to make multiple users all be co-owners of the database. He wants all of these users to be able to vacuum and dump the database when needed. The database owner does not want to have a db_owner account or a db_owner role - he'd like all of the users to be able to sign in as themselves and perform maintenance.
I'm having a hard time figuring out if PostgreSQL can do what he wants. Does anybody have experience creating a database with multiple owners like this?