Well, kinder and gentler on my disks, at least. I'm hoping for something more terse than what I'm seeing in my default 8.4.2 install, and also something that can be combined with the functionality of log_min_duration_statement.
Is there such a thing? My goal is to achieve some accounting on which clients are using what percentage of our server capacity. It doesn't have to be perfect, but it should be fairly accurate.