title: postgresql numeric type without trailing zeros
body: <p>When use  numeric type, for example like this <code>numeric(4,2)</code> and if store in him number <code>1.2</code>, at end of number are adding zeros for filling <code>scale</code> part right? that is result is <code>1.20</code></p>
  
  <p>There is possible to save "short" scale as "short"? that is  without adding zeros at end ?</p>