title: How to get a piece of data's datatype?
body: <p>How can I get back the datatype of a particular piece of data?</p>
  
  <p>For example, say I have a table <code>User</code> with <code>name:string</code>, <code>id:integer</code>, and <code>created_at:time</code>.</p>
  
  <p>For any arbitrary user, <code>user.name.[method]</code> should return "string",
  <code>user.id.[method]</code> should return "integer", and <code>user.created_at.[method]</code> should return "time".</p>
  
  <p>I tried "type" and "datatype" but they are both undefined.</p>