title: Removing json objects from an array stored in postgresql column
body: <p>I have an array of json objects, from which I want to removed three specific objects. 
  For example:</p>
  
  <pre><code>[{"id": "aaa"}, {"id": "aab"}, {"id": "aac"}, {"id": "aad"}]
  </code></pre>
  
  <p>I need to update the table and remove from the array the objects that contain <code>"aaa"</code>, <code>"aab"</code>, and <code>"aac"</code> so that the array would only contain </p>
  
  <pre><code>[{"id": "aad"}]
  </code></pre>
  
  <p>or whatever other json objects that are stored in the array and don't contain the previous mentioned values stored in "id".</p>
  
  <p>I'm using Postgres, and I know just that I need to use UPDATE, but that's about it (I'm still a beginner).</p>