Re: Variable references in path expressions

>
> I might be mistaken, but I think he wants to do this:
>  > let $a := (<a/>,<b/>,<c/>)
>  > let $b := (xs:QName("b"), xs:QName("c"))
>  > return $a/$b
> .. would lead to $a being filtered by $b's QNames on the child axis, so
> the result would be <b/>,<c/> (e.g. what you would get by
> $a/element($b)). I've noticed that some people tend to understand
> Variable references in XQuery PathSteps this way.
>
Following your argument, $b then should simply be treated
as a sequence of values; applying the element() construct to it does not
change the sequence of item values into XQuery parsing tokens.

I am not sure this works in the current semantics because path
expression expects a QName for Name tests not an element
at the time of parsing.

Received on Friday, 29 April 2005 01:59:49 UTC