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   Re: [xml-dev] What should TrAX look like? (Was: Re: [xml-dev] Articleon

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Wolfgang Hoschek wrote:

> This has less to do with the structure of an iternal model, and more to 
> do with more or less clever optimization/indexing independent of the 
> object model.

Then such a tool could build an index over the LCD tree without 
reconstructing the tree.

> I remember running a very simple "//item" with the XOM CVS XPath toy. 
> Turns out it would have taken a month to run to completion - quadratic 
> time complexity where one would expect O(N). With another engine it ran 
> in less than a second. Similar for other queries.

If you have an actual test case that demonstrates the issue, I suspect I 
can fix it. However, allegations on mailing lists without any actual 
data rarely result in improvements.

Elliotte Rusty Harold  elharo@metalab.unc.edu
XML in a Nutshell 3rd Edition Just Published!


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