title: Hybris flexible query is not working for Customer type
body: <p>I run below query through
  <a href="https://localhost:9002/console/flexsearch#" rel="nofollow noreferrer">https://localhost:9002/console/flexsearch#</a></p>
  
  <p>When I run below query there is no error</p>
  
  <pre><code>SELECT   
             *
              FROM { Customer  AS p} 
              where p_name IS NOT NULL
  </code></pre>
  
  <p>But, when I run this, it's giving me an error.</p>
  
  <pre><code>SELECT *
              FROM { Customer  AS p} 
  
              where {p_name} =' zohan'
  </code></pre>