title: Merge/join two metrics in Prometheus/PromQL
body: <p>I have two different (but related metrics).</p>
  
  <pre><code>metric_1(id="abc",id2="def")
  metric_2(id="abc",id2="def")
  </code></pre>
  
  <p>My goal ultimately is to have the following in Grafana. I plan to use the "instant" value and Grafana's table visualization widget to display this data.</p>
  
  <pre><code>id      id2     metric1 metric2
  abc     def     1       2
  </code></pre>
  
  <p>What query/joining/relabeling should I use to achieve this?</p>
  
  <p>Thank you in advance! :)</p>