title: Postgresql & pgAdmin: Add a default column to every new table in database
body: <p><strong>Postgresql &amp; pgAdmin: How can I add a column to every table that is created in my database?</strong></p>
  
  <p>I want to add a "GUID" and "CreateDate" column by default to every single table that will ever be created in my database.</p>
  
  <p>So if I do:</p>
  
  <pre><code>CREATE TABLE my_table (
      name string
  )
  </code></pre>
  
  <p>Then it should create a table with 3 columns (name, GUID, CreateDate)</p>