Small Problem with extract and XML data

Hello,

here is the setup (smal test I created):

A table with a CLOB column (data) with the following content:

<root>

   <child>Child 1</child>
</root>

SELECT data FROM theTable returns the above XML.

I get an error with the following expression:

SELECT extract(XMLType(data), '/root') FROM theTable;

ORA-31011: XML parsing failed

Looking at the example given in the Oracle manual, I would expect
<child>Child 1</child> to be returned.

The error description says "Check if the document to be parsed is valid." but as far as I can tell the XML is valid (wellformed)

Strangely enough, the following is working:

SELECT extractvalue(XMLType(data), '/root/child') FROM theTable;

If the XML wasn't valid, this should fail as well, right?

What am I missing here?

This is with Oracle 9.2.0.7.0 running on a Linux box.

Regards
Thomas

-- 
It's not a RootKit - it's a Sony