title: BigQuery : An internal error occurred and the request could not be completed
body: <p>Simple select queries with timestamp are failing :</p>
  <pre><code>SELECT COUNT(*) FROM [bi.table] WHERE  timestamp &gt; DATE_ADD(CURRENT_TIMESTAMP(), -15, 'MINUTE') and column1 is null
  </code></pre>
  <p>Query Failed:</p>
  <pre><code>Error: An internal error occurred and the request could not be completed. Job ID: exampleJob:job_lndEirUwwM_khdBrV8eMDmBDFiE   
  </code></pre>
  <p>Is there anything wrong with the bigquery system?</p>
  <p><a href="https://status.cloud.google.com/" rel="nofollow noreferrer">https://status.cloud.google.com/</a> does not say anything is wrong.</p>