title: Postgresql sorting mixed alphanumeric data
body: <p>Running this query:</p>
  
  <pre><code>select name from folders order by name
  </code></pre>
  
  <p>returns these results:</p>
  
  <pre><code>alphanumeric
  a test
  test 20
  test 19
  test 1
  test 10
  </code></pre>
  
  <p>But I expected:</p>
  
  <pre><code>a test
  alphanumeric
  test 1
  test 10
  test 19
  test 20
  </code></pre>
  
  <p>What's wrong here?</p>