Difficult User Privileges

[Kristian Zander]

Hi!

I got a serious problem, but I think it can't be solved at the moment.
I want to secure my user-accounts. I want to give Users access JUST to use columns in the WHERE-clause, not in SELECT. So that they can query following:
SELECT id FROM table WHERE user='abc' AND password='xyz' //prints the id, if user and password is correct

But following query did not succeed:
SELECT id, password FROM table WHERE user='abc' AND password='xyz' //MySQL should return error

WHY? Simple: If anyone is getting these user data he's able to get all my tabledata. So this is a more powerful way to secure my data.

Greets!