freeradius + postgresql + realms + different databases for each realm

["trol anon" <anontrol@gmail.com>]

I was wondering if anyone might be able to point me in the right direction with regard to setting up freeradius with postgres so that each realm is authenticated out of a separate database (on the same postgres server).

I understand that this might not be the best way to handle things, but for historical and business reasons I find myself faced with the prospect implementing this configuration.  I'm pretty much through the freeradius and postgres installation and configuration, but I find myself unable to get my head around breaking on each realm into a seperate database (yeah I can duplicate the schema across seperate renamed databases) and then convince freeradius to authenticate using those separate databases for each specific realm.

I've STFW and archive(s) and found little documentation on how to accomplish this particular config.

Thanks in advance for *any* tips, suggestions, links or outright tutorials you might be able to provide...