FLWOR (less simple cases)

• If there are multiple bound variables and an order by clause in the FLWOR expression, then the conversion to XSLT is more difficult.
• Essentially this is because the defined meaning of this construct uses data structures that may not be expressed in the XQuery/XPath Data Model.
• The XQuery Formal Semantics explicitly omits to give semantics to the order by clause for the same reason.