rollback

Hi

I would like to be able to "mark" a point in my postgres database.
After that I want to change a few things and "rollback" to that point.
Does postgres support such a thing?  Is it possible for me to do this?

--
Adrian Moisey
Systems Administrator | CareerJunction | Your Future Starts Here.
Web: www.careerjunction.co.za | Email: adrian@careerjunction.co.za
Phone: +27 21 686 6820 | Mobile: +27 82 858 7830 | Fax: +27 21 686 6842