title: making the auto increment IDs start by a predefined number
body: <p>I was asked to make the ids of our equipement start with the current year (eg : 21-4234 instead of just 4234) and I was wondering if this was possible. This is how we make the ids for our equipement:</p>
  <pre><code>id = db.Column(db.Integer, primary_key=True)
  </code></pre>
  <p>if anyone knows how this can be achieved i would love to hear from you :-)</p>