[xquery-talk] FLOR or FLWOR

[Hans-Juergen Rennau]

>> 
>> or simpler
>> 
>> distinct-values($values)[let $v := . return $values[. = $v][2]]
>> 

>I think you need an exists() call there - a value might be 0 or "" or
>false().
>
>Michael Kay
>http://www.saxonica.com/


Not to mention the danger of $values containing atomic values of a type for which the Effective Boolean Value is not defined, that is, any non-numeric type other than xs:string or xs:boolean!

With kind regards,
Hans-Juergen Rennau


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