title: How to query struct type in bigquery without "Field name step does not exist in STRUCT"?
body: <p>When I run this query in bigquery</p>
  
  <pre><code>select jsonpayload.context.input.step
  from `table_2019*`
  </code></pre>
  
  <p>respond is </p>
  
  <blockquote>
    <p>"Field name step does not exist in STRUCT at [1:34]"</p>
  </blockquote>
  
  <p>However, When running the same query on other tables like table_20190101 or table_20190102 it worked fine </p>
  
  <p>How can I fix my code to show all results without an error or ignore error thanks.</p>