sru and query

I haven't been keeping up with the z39.50 list to know
if it deals with sru questions.

Is there any mechanism in sru (not srw) that allows
alternate query types to be used (e.g. Google, etc.)
instead of cql?

Thanks
David Loy

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com