title: DynamoDB how to use index in PartiQL queries?
body: <p>I have seen the dynamoDB doc for the PartiQL syntax:</p>
  <pre><code>SELECT expression  [, ...] 
  FROM table[.index]
  [ WHERE condition ] [ [ORDER BY key  [DESC|ASC] , ...]
  </code></pre>
  <p>but in practice:</p>
  <pre><code>select * from dev .pk-all-index
  where &quot;pk&quot; = 'config' AND (&quot;brand&quot; = 'tesla' OR contains(&quot;aliases&quot;, 'tesla.com'))
  </code></pre>
  <p>gives me the error:</p>
  <blockquote>
  <p>An error occurred during the execution of the command.
  ValidationException: Statement wasn't well formed, can't be processed:
  Unexpected keyword</p>
  </blockquote>