title: PostgreSQL: boolean + integer
body: <p>I have a query like:</p>
  
  <pre><code>SELECT (column LIKE 'string')+100
  </code></pre>
  
  <p>It returns ERROR: operator does not exist: boolean + integer</p>
  
  <p>I couldn't find a function to convert bool to int, there is only text to int: to_number().</p>
  
  <p>Is there a way to resolve this issue?</p>