How to Force Code Igniter to NOT to excape queries?

[eluser]Sheikh Aman Alam[/eluser]
@noctrum-
i didnt want to this:
WHERE `comment`.`videoid` = '2'

rather, i want to do this:
`user`.`userid` = comment.userid

and NOT this one:
`user`.`userid` = 'comment.userid'

codeigniter is doing the later one.


@michael Wales.
how to do that in this situation?