Separate query for authentication and authorization

[vignesh]

Hello
I want to have multiple queries in RADIUS (e.g. one for prepaid and one
for postpaid users). can I do this in Free Radius, if yes how do I
specify free radius to execute particular query.

Also the authentication and authorization seems to call the same query.
Can I have different query fro authentication and authorization.

Thanks 
Vignesh