a scenario of querying for hierarchy

"Mingchung Liu" <[email protected]>
Newsgroups gmane.comp.gnu.gift.general
Message-ID <[email protected]>
Hi, dear friends.
I want to know how I can execute a query for hierarchy query engine, which
you talked about in the document----- configuring and hacking the GIFT.
Need I read the DTD of mrml in order to conifigure the a query for
hierarchy?  In fact , I don't know exactly what this query engine do . Can I
use SnakeCharmer to execute such queries?

If someone can  describe a scenario of such query, or give an example of it
, which can refers both  the client side and the server side,I will
appreciate it very much.

Thanks in advance.
----------------------------------------------------------
Mingchung Liu
School of Management  at Beijing Normal University
Beijing,100875
(+86)10-62204692

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