I use rails 3.0.4 here is a piece of Arel query in my rails application, How can I use the upcase method to make a none case sensitive search in a database agnostic way? Customer.where("company_id = ? and (firstname like ? or lastname like ? or reference like ?)", current_user.company_id, "%#{params[:query]}%", "%#{params[:query]}%", "%#{params[:query]}%") Thanks
![Not case sensitive search with active record](https://cdn-ak-scissors.b.st-hatena.com/image/square/98d6f053a97a87156775f60757c60865d0f2c47d/height=288;version=1;width=512/https%3A%2F%2Fcdn.sstatic.net%2FSites%2Fstackoverflow%2FImg%2Fapple-touch-icon%402.png%3Fv%3D73d79a89bded)