[CR #331064] The xmlextract and xmltest built-in functions return incorrect results for an XPath query that specifies an attribute reference to the right of a wild card and an element reference.
For example, the following should return “99,” but instead returns an empty result:
select xmlextract("/a/*/c/@at", "<a><b> <c at='99'/></b></a>")
Workaround: Specify a descendant-path query:
select xmlextract("/a/*//c/@at", "<a><b> <c at='99'/></b></a>")
