title: create a new object of group of field in select query in objection js
body: <p>I have one select query in Objections JS(NodeJs). That will return few fields. I need to modify the result. Suppose we have got below json from the response of the query.</p>
  <pre><code>{
     group_id, 
     group_name,
     link,
     created,
     user_id
  }
  </code></pre>
  <p>I need to update this response like below with the use of the loop of the.</p>
  <pre><code>{
     group: {
        id, 
        name,
     },
     link,
     created,
     user_id
  }
  </code></pre>
  <p>Is there any option in objections to updating our result like this? Please help me with this concern.</p>