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> XSTL/XQuery compare strings to access an element You need to get up to date. Decent XSLT/XQuery processors stopped doing that years ago! > We will also need to convert the age value from > string to int in order to compare it. XSLT/XQuery processors can maintain the age as an integer rather than a string if they choose, especially if they are schema-aware. However, there's a large class of queries and transformations that access the average node less than once, and in those cases doing the conversion just-in-time, when the value is accessed, is better than doing it just-in-case, when the XML is unmarshalled. A high-level language of course has much more scope to make such optimizations; it can even make the decision based on its static analysis of the query - as is done for example with document projection, where the parts of the document that aren't needed by the query are discarded during parsing. Michael Kay http://www.saxonica.com/
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