XML Query Use Case REF, queries 2, 11

XML Query Use Cases
W3C Working Draft 15 February 2001

Use Case REF

1.9.4.* Q2, Q11

In the Solution in XQuery, occurrences of "name" should be changed to "@name".

1.9.4.11 Q11

In the Solution in XQuery, consider the expression:
    IF ... THEN ... ELSE $e UNION ...
XQuery Appendix B says that IF..THEN..ELSE is at precedence level 6, whereas
UNION is at level 10. Accordingly, the expression would be parsed as
    ( IF ... THEN ... ELSE $e ) UNION ...
which is not what you want. Instead, you need to parenthesize the UNION
subexpression:
    IF ... THEN ... ELSE ( $e UNION ... )
(or else change the precedences, or else mandate an ENDIF or FI keyword).

The Expected Result has <descendant> elements, but the Solution in XQuery
generates <person> elements.

The Expected Result has an attribute named "kids" where the Solution in XQuery
generates (and sorts by) an attribute named "nkids".

The Expected Result wraps the result in a <result> element, but the Solution
in XQuery doesn't.

The Expected Result doesn't have an element for Joe (he's not one of his own
descendants), but the Solution in XQuery generates one.

-Michael Dyck