title: Doctrine Annotations type="guid" and strategy="UUID" Behavior?
body: <p>Ok, so I just want to know what the behavior of this annotation does:</p>
  
  <pre><code>/**
   *
   * @ORM\Id
   * @ORM\Column(name="id", type="guid")
   * @ORM\GeneratedValue(strategy="UUID")
   */
  protected $id;
  </code></pre>
  
  <p>Are the keys in an incrementing order as I insert rows to my table?</p>
  
  <p>I do know that the keys are not as simple as <code>00001</code>, <code>000002</code> and it behaves like</p>
  
  <ul>
  <li><code>007f13ff-ce26-11e4-8e3d-a0b3cce9bb7e</code></li>
  <li><code>00805a63-ce26-11e4-8e3d-a0b3cce9bb7e</code>  </li>
  <li><code>0b1b6ca9-d178-11e4-8e3d-a0b3cce9bb7e</code> </li>
  </ul>
  
  <p>but my question is, are the keys in a specific order like the first inserted row is a lower alphanumeric value than the last value.. Always?</p>