Procmail + Mysql virtual maps + postfix

[abhishek jain]

Dear friends,
I have a virtual user maps setup with mysql on postfix.
due to some reasons i need to setup procmail on it, i need your suggestions
on it, ie how to get forward.
i do not want to touch the mysql queries in the virtual alias maps etc files
.
Can it be done
Pl help me
Thanks,
abhi