Re: An issue with XPath 2.0 sequences (Was Re: RE: Mue

> Nevertheless, I'm reasonably comfortable with it.

I think the place where it breaks down most spectacularly is when it is
combined with the apparent desire to model SQL NUL values as () using a
list, even an empty one, as a value does not really combine with the non
nested list model, which means that these "NUL" values vanish at
interesting times and lead to strange anomalies in  accumulation
functions like sum() and the loss of the useful lisp-like
non-empty-node-set = true  coercion that was in Xpath 1 but only works
in Xpath 2 "most of the time".

David

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