title: DDL comments directly when creating schema objects
body: <p>Is it possible to do this in a single query:</p>
  
  <pre><code>CREATE TABLE foo(bar INTEGER);
  
  COMMENT ON foo IS 'my foo table';
  
  COMMENT ON bar IS 'my bar column of the foo table';
  </code></pre>
  
  <p>Something like for the constraints:</p>
  
  <pre><code>CREATE TABLE foo
             ( bar INTEGER COMMENT IS 'my bar column of the foo table'
             , COMMENT IS 'my foo table'
             );
  </code></pre>
  
  <p>?</p>