title: Postgres column type for storing numbers with many decimals
body: <p>I need to store in a column values like <code>0.0000003215218845</code></p>
  
  <p>What type does my column needs to be? I've tried making it <code>real</code> or <code>float</code> but when I run a select query, to value I get is <code>3.21522e-07</code></p>
  
  <p>What type does my column needs to be in order for the select query to return fully <code>0.0000003215218845</code> value?</p>