title: Renaming default id column in Django models
body: <p>I have an existing application written in Django and I am taking advantage of the models, migrations orm etc.</p>
  
  <p>Each model has a column <code>id</code> I was wondering if it is possible to rename this column to something else like <code>person_id</code></p>
  
  <p>I saw some examples creating new primary key columns but that is not what i want. I want to <strong>rename</strong> the existing <code>id</code> column name</p>