title: How can I get the list of all columns in a BigQuery table and dataset
body: <p>I would like to query all columns and their description in a table/dataset. I'm looking similar metadata tables like <code>__TABLES_SUMMARY__</code> and <code>__TABLES__</code>.</p>
  
  <p>The goal is to build a data dictionary report in Data Studio for the BigQuery tables.</p>