.
  </p><p>
   According to the SQL standard, the owner of a schema always owns
   all objects within it.  <span class="productname">PostgreSQL</span>
   allows schemas to contain objects owned by users other than the
   schema owner.  This can happen only if the schema owner grants the
   <code class="literal">CREATE</code> privilege on their schema to someone else, or a
   superuser chooses to create objects in it.
  </p><p>
   The <code class="literal">IF NOT EXISTS</code> option is a
   <span class="pro