2x authorize_check_query

Hi All! It's a situation in which i have two authorize_check_query. I'm using pppoe+sql and I also want to implement dhcp. But the thing is that when dhcp nas asks freeradius it uses mac address as username. So i want sth like two sql { } sections with two different authorize_check_query for two different auth types. Sorry for my lame eng. Big thanks! -- Pozdrawiam! Maciej Drobniuch