title: JPA - How to set string column to varchar(max) in DDL
body: <p>With <a href="https://stackoverflow.com/q/2560125/1429387">JPA</a>, DDL-generation for the attribute:</p>
  
  <pre><code>@Column
  final String someString;
  </code></pre>
  
  <p>will be <code>someString varchar(255) null</code></p>
  
  <pre><code>@Column(length = 1337)
  final String someString;
  </code></pre>
  
  <p>will yield <code>someString varchar(1337) null</code>.</p>
  
  <p>But how can I get it to produce <code>someString varchar(max) null</code>?</p>
  
  <p>Is it possible using the <code>length</code>-attribute, or do I need to use the <code>columnDefinition</code>-attribute? </p>