Re: vacuumdb has a fatal after database rename - Mailing list pgsql-bugs

On Wed, Sep 28, 2016 at 09:54:41PM +0800, huang wrote:
> If I rename the database postgres  before vacuumdb , the vacuumdb say
> FATAL:  database "postgres" does not exist.

So don't rename it. It's being used because you are running vacuumdb
using postgres shell account.

You could try something like:

PGDATABASE=template1 vacuumdb -az

but generally speaking it is not advised to rename postgres db.

Best regards,

depesz