title: Is there an Autoincrement in BigQuery?
body: <p>Is there something like an AUTO_INCREMENT, SERIAL, IDENTITY or sequence in BigQuery ?</p>
  
  <p>I'm aware of ROW_NUMBER <a href="https://cloud.google.com/bigquery/query-reference#row-number" rel="noreferrer">https://cloud.google.com/bigquery/query-reference#row-number</a><br>
  But I want to persist a generated unique ID for every row in my table.</p>