title: Is it possible to extract the stored value of a keyword field when _source is disabled in Elasticsearch 7
body: <p>I have the following index:</p>
  <pre><code>    {
        &quot;articles_2022&quot; : {
          &quot;mappings&quot; : {
            &quot;_source&quot; : {
              &quot;enabled&quot; : false
            },
            &quot;properties&quot; : {
              &quot;content&quot; : {
                &quot;type&quot; : &quot;text&quot;,
                &quot;norms&quot; : false
              },
              &quot;date&quot; : {
                &quot;type&quot; : &quot;date&quot;
              },
              &quot;feed_canonical&quot; : {
                &quot;type&quot; : &quot;boolean&quot;
              },
              &quot;feed_id&quot; : {
                &quot;type&quot; : &quot;integer&quot;
              },
              &quot;feed_subscribers&quot; : {
                &quot;type&quot; : &quot;integer&quot;
              },
              &quot;language&quot; : {
                &quot;type&quot; : &quot;keyword&quot;,
                &quot;doc_values&quot; : false
              },
              &quot;title&quot; : {
                &quot;type&quot; : &quot;text&quot;,
                &quot;norms&quot; : false
              },
              &quot;url&quot; : {
                &quot;type&quot; : &quot;keyword&quot;,
                &quot;doc_values&quot; : false
              }
            }
          }
        }
      }
  </code></pre>
  <p>I have a very specific one-time need and I want to extract the stored values from the <code>url</code> field for all documents. Is this possible with Elasticsearch 7? Thanks!</p>