[xquery-talk] xquery with large xml file
Michael Kay
mhk at mhk.me.uk
Thu Apr 20 13:41:17 PDT 2006
>
> Interesting. I thought about such a function, while
> reading this thread. I didn't try it, but I thought it was
> the most efficient. Is there some optimization behind the
> first expression?
Nothing that comes very obviously to mind. I suspect that the main factor is
that there are no calls on user-defined functions and fewer changes of
dynamic context; also one call on string-join() to concatenate a sequence of
5 strings is likely to be faster than 4 calls of concat() to concatenate two
strings.
Michael Kay
http://www.saxonica.com/
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