Remove some columns from impressions

[Rubioli]

In my application I have V 1.5.2 installed.

Im trying to reduce our calls to db and there are some columns we dont need to commit to impressions table, such as: user_id, controller_name, action_name, view_name, ip_address, message, referrer & params. Is it possible to remove this to be added to DB?

Thanks in advanced!