title: Symfony Column not found: 1054 Unknown column in 'field list'
body: <p>I have this error when i use :</p>
  
  <pre><code>    /**
   * @var boolean
   *
   * @ORM\Column(name="tag", type="boolean")
   */
  private $tag;
  </code></pre>
  
  <p>But i don't understand, in my table i have the field 'tag'.
  This error return me a request, and when i run this request in squirrel, all works.</p>