docs-v2/layouts/shortcodes/html-diagram/query-plan.html

<div id="query-plan-diagram">
  <div class="plan-single-column">
    <div class="plan-column">
      <div class="plan-block">
        <code>SortPreservingMergeExec</code>
      </div>
      <div class="plan-arrow"></div>
      <div class="plan-block">
        <code>UnionExec</code>
      </div>
    </div>
  </div>
  <div class="plan-arrow split"></div>
  <div class="plan-double-column">
    <div class="plan-column">
      <div class="plan-block">
        <code>SortExec</code>
      </div>
      <div class="plan-arrow"></div>
      <div class="plan-block">
        <code>ParquetExec</code>
      </div>
    </div>
    <div class="plan-column">
      <div class="plan-block">
        <code>SortExec</code>
      </div>
      <div class="plan-arrow"></div>
      <div class="plan-block">
        <code>ParquetExec</code>
      </div>  
    </div>
  </div>
</div>