title: could not access file wal2json no such file or directory
body: <p>I am new to PostgreSQL. I am trying to implement logical replication in PostgreSQL installed in my laptop.</p>
  <p>When I run the following query to create a replication slot, I am getting</p>
  <pre class="lang-none prettyprint-override"><code>could not access file wal2json: no such file or directory 
  </code></pre>
  <pre><code>SELECT * FROM pg_create_logical_replication_slot('test_slot', 'wal2json');
  </code></pre>
  <p>After a search in google, I understand that wal2json is an additional extension kind of thing which needs to be setup separately.</p>
  <p>Does anyone have an idea how to setup &quot;wal2json&quot; in PostgreSQL installed on a local laptop (Windows OS)?</p>