Hi Geert,
You're running into the new function mapping capability (on by default
for 1.0-ml, off by default for 1.0). It's more obvious what it's doing
if you pass a longer list, in which case the function will be called for
each value and the return value will also be a list. If you were to do
elem((<one/>, <two/>, <three/>))
you would get the list ("bla", "bla", "bla") returned.
If you do not wish to have this behavior, you can disable function
mapping by adding the following to your XQuery module's prolog.
declare namespace xdmp="http://marklogic.com/xdmp";;
declare option xdmp:mapping "false";
Wayne.
On Thu, 2008-11-06 at 17:12 +0100, Geert Josten wrote:
> Hi,
>
> When passing an empty sequence where a node() is expected, the
> function does not execute, nor is a 'coercion' error is raised either.
> Is it supposed to work like this? With following example I would
> expect either the string 'blabla' or an error, but instead I am
> getting 'bla'.
>
> ---------
> xquery version "1.0-ml";
>
> declare default function namespace "my";
>
> declare function elem($arg as node()) as xs:string {
> "bla"
> };
>
> elem(()), elem(<bla/>)
> ---------
>
> I am running on MarkLogic Server 4.0-1..
>
> Kind regards,
> Geert
>
>
> Drs. G.P.H. Josten
> Consultant
>
>
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