title: Doctrine ORM Custom Column Collation
body: <p>I'm trying to set custom column collation as in Doctrine documentation: </p>
  
  <ul>
  <li><a href="http://doctrine-dbal.readthedocs.org/en/latest/reference/schema-representation.html" rel="noreferrer">http://doctrine-dbal.readthedocs.org/en/latest/reference/schema-representation.html</a> and </li>
  <li><a href="http://doctrine-orm.readthedocs.org/en/latest/reference/annotations-reference.html" rel="noreferrer">http://doctrine-orm.readthedocs.org/en/latest/reference/annotations-reference.html</a></li>
  </ul>
  
  <p>using</p>
  
  <p><code>@ORM\Column(name="body", type="string", length=140, options={"customSchemaOptions"={"collate"="utf8mb4_unicode_ci"}})</code></p>
  
  <p>but when I update the schema it always goes back to utf8_unicode_ci (when I set it manually for example). Any ideas?</p>