RE: [xml-dev] XQuery Puzzle

["Michael Kay" <mike@saxonica.com>]

> the reason the expression did not generate the result that 
> you exected was that the input consisted of a sequence of 
> parentless elements.
> 
> parentless elements do not exist in the Xpath1  data model so 
> this situation can not arise in that case.
> 

Actually, the failure wasn't because they were parentless, it was because
they weren't siblings of each other. So while this kind of problem is more
likely in XPath 2.0, it could in principle also happen in 1.0.

Michael Kay
http://www.saxonica.com/