title: Alter the definition of the Stored Computed Column in CockroachCloud
body: <p>I have stored computed column defined as:</p>
  <pre><code>ALTER TABLE computed_column AS INT col1+col2 STORED;
  </code></pre>
  <p>Is there way to change the calculation to <code>col1+col3</code> without first dropping the <code>computed_column</code>?</p>