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Michael Kay wrote: > ** > Can you or anyone reading this email duplicate my simple SQL > example in XPath 2.0 or XQuery of joining two nonlinear (multi-leg) > structures hierarchically together and applying a multi-leg data > filtering? > > I'll be very happy to tackle this if you can express the problem in XML > terms. Show us the input XML and the output XML and we'll show you the > query. I can't do it if I have to reverse-engineer the problem statement > from a solution coded in a different and unfamiliar language, > or understand what you mean by the non-XML concepts of "legs" and > "nonlinear", or read an academic theory of LCA processing. I agree. Like Michael, I'm an XQuery implementer and like to think I have a reasonable understanding of the technology space, but I'm also having a hard time following the opaque terminology you use. You clearly feel that you have an important message for the XML / XQuery community, and I'm willing to put some effort into understanding what you're trying to say. What I need is a clear explanation or terms like "LCA", "non-linear", "multi-leg" etc. I could so with some examples written in XML to illustrate them, and an example of a problem that demonstrates the advantages of your query techniques. I'm not dismissing what you have to say, but I don't exactly get users come up to me every day asking when they're going to be able to join two non-linear multi-leg structures in XQuery. What's the value proposition for XQuery users? John -- John Snelson, Oracle Corporation http://snelson.org.uk/john Berkeley DB XML: http://www.oracle.com/database/berkeley-db/xml XQilla: http://xqilla.sourceforge.net
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