title: How to make case insensitive queries with Django Models
body: <p>I have an <code>member</code> model with contains an <code>email</code> field. I recently realized that if a part of the email is capitalized, it won't show up in Django queries if I try to filter by the email (multiple member objects have the same email, but it may not be capitalized). I could have just made all emails lower-case when entering them into the database, but it's too late for that now (as the website is already launched). So how do I check who has a certain email, without being case sensitive?</p>