Why do you want to transfer?
If you want to transfer as a sophomore (i.e. just after frosh year), your high school record and your college record will matter. If you want to transfer as a junior (i.e. just after sophomore year), your high school record will be less relevant compared to your (by that time) greater college record. No one now can chance you for transfer since you do not have a college record.
Columbia has significant Columbia-specific core or general education requirements, so transfer students may need to “catch up” on them, increasing the risk of delaying graduation.