06 Dec 2011
Change Postgres database owner
Since this took some digging to find, I'm just going to post it for posterity (and myself in the future):
UPDATE pg_class SET relowner = (SELECT oid FROM pg_roles WHERE rolname = '$USER') WHERE relname IN (SELECT relname FROM pg_class, pg_namespace WHERE pg_namespace.oid = pg_class.relnamespace AND pg_namespace.nspname = 'public');
Change $USER to be the name of the user you want to be the new owner of the DB.