title: Sedna: Add XML file to document
body: <p>I am running a simple Sedna database but have a small issue.
  I have multiple XML files that I want to add all to the same document. The files all follow the same schema.</p>
  
  <pre><code>LOAD "1.xml" "mydoc"&amp;
  LOAD "2.xml" "mydoc"&amp;
  LOAD "3.xml" "mydoc"
  </code></pre>
  
  <p>But I get the following error</p>
  
  <pre><code>SEDNA Message: ERROR SE2001
  Document with the same name already exists.
  Details: tariffs
  </code></pre>
  
  <p>How can I go about adding each file to the existing document without removing the existing contents of the document? Is this possible?</p>
  
  <p>Any help much appreciated.
  Thanks</p>