title: How to store big int in nest js using typeorm
body: <p>some.entity.ts</p>
  
  <pre><code>amount:number
  </code></pre>
  
  <p>But when I store a very large data in my postgres it throws error '''integer out of range'''</p>
  
  <p>My question is how can I store <strong>Big Int</strong> as type in psql using typeorm</p>