EllisLab/CodeIgniter — pull request #1418 by rsjtdrjgfuzkfg (2012-06-02 03:04:05+00:00)
Title: Operators get escaped...

where and or_where did not work as expected:

Example from: http://codeigniter.com/user_guide/database/active_record.html
$this->db->where('name !=', $name);

Expected: SOME SQL WHERE 'name' != '$name'
Actual: SOME SQL WHERE 'name' '!=' '$name'