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Re: Recently published W3C Working Drafts (long)

Re:  Recently published W3C Working Drafts (long)

Michael Kay wrote:

> To sum it up rather briefly, I think XQuery 1.0 is essentially XPath 2.0
> plus
> 1) element and attribute constructors
> 2) function definitions
> 3) strong typing
> Of course (1) is available in a different form in XSLT 1.0, and (2) is
> available in XSLT 2.0, so you could say that apart from syntax, XQuery is
> XSLT plus strong typing minus template rules. Those might seem small
> differences, but I happen to agree with those who believe that the addition
> of strong typing and the absence of template rules are both very important
> when it comes to optimizing a query to execute against a large XML database
> with pre-defined indexes.

That makes sense.  XSLT is very difficult to optimize, so
XQuery has an advantage by virtue of what it leaves *out*.

--Joe English



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