title: Update individual individual item without using a sort key
body: <p><strong>PROBLEM:</strong> <em>Without</em> using a sort key, use the primary key and also an item's <strong><strong>row</strong> value</strong> to update the entire item.</p>
  <p>CAVEATS: The primary keys are <strong>not unique</strong> and we are <strong>not able</strong> to use sort keys.</p>
  <p>Here is the structure of my db:</p>
  <pre><code>product      status       id
  product523   confirmed    400
  product523   pending      500        // update this item
  product523   confirmed    234
  </code></pre>
  <p><strong>GOAL:</strong> Update product:<code>product523</code> &amp; id:<code>500</code> status from <code>pending</code> to <code>confirmed</code></p>
  <p>Please note the following:</p>
  <ul>
  <li>The first 3 rows have the same <code>user</code> key</li>
  <li>Each row has a different <code>id</code></li>
  </ul>
  <p>WE DO NOT WANT TO USE A SORT KEY</p>