title: How to prevent quoting of column name in SQL in Yii2
body: <p>I want to write SQL like this with Yii 2:</p>
  
  <pre><code>select id, 1 as type from user;
  </code></pre>
  
  <p>This is my code:</p>
  
  <pre><code>$query = User::find()-&gt;select(['id', '1 as type'])-&gt;all();
  </code></pre>
  
  <p><code>1</code> is a constant, not user's field</p>
  
  <p>I want to add field <code>type = 1</code> to the query result.</p>