[SQLObject] group by question

[Fred C <bs...@gm...>]

Dose someone have any idea how to do to translate this request into  
sqlobjec/sqlbuilder?

select count(*), word from (select * from tags order by postdate desc  
limit 3000) group by word order by count(*) desc limit 80;

Is there also a way to send a raw sql request like this one through  
sqlobject?

Thanks in advance for any suggestion.

-fred-