title: PostgreSQL: what is the difference between float(1) and float(24)?
body: <p>I am having a hard time understanding the precision parameter p for <code>float(p)</code> in PostgreSQL. For example, <code>float(1)</code> and <code>float(24)</code> seem to be exactly the same to me.</p>
  
  <p>Can anyone provide me with some examples of their differences, please?</p>