title: PostgreSQL, Format Float
body: <p>I try to format numeric field</p>
  
  <pre><code>select to_char(12315.83453, 'FM999999999999D9999')
  </code></pre>
  
  <p>in this case all its OK. Result is <b>12315.8345</b></p>
  
  <p>But if value is between 0 and 1</p>
  
  <pre><code>select to_char(0.83453, 'FM999999999999D9999')
  </code></pre>
  
  <p>result is <b>.8345</b> without 0 (zero) but I need <b>0.8345</b>.</p>
  
  <p>What kind of format should be indicate to <code>to_char</code> function to obtain result what I need?</p>