Resetting active record 'group_by'

[eluser]Daniel H[/eluser]
For a particular reason, I use a common field filtering function to run my GET and COUNT statements. To cut a long story short, one of these common filtering statements contains a GROUP BY line, which obviously doesn't work when a COUNT is performed.

So is there a way to reset the GROUP BY to nothing after it has been set?

Thanks,

Dan.