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   Re: [xml-dev] After XQuery, are we done?

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Hunsberger, Peter wrote:


> I don't get the distinction.  As soon as you've got a graph you've got a
> tree (or perhaps many trees).
> 

Not necessarily. All trees are graphs but not all graphs are trees. For 
instance a pure tree can't represent a cycle but a graph can. XML's rule 
that a node can only have one parent is not a limit of graphs in general.

-- 
Elliotte Rusty Harold  elharo@metalab.unc.edu
XML in a Nutshell 3rd Edition Just Published!
http://www.cafeconleche.org/books/xian3/
http://www.amazon.com/exec/obidos/ISBN=0596007647/cafeaulaitA/ref=nosim




 

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