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unique() function?

  • 1.  unique() function?

    Posted Mon December 01, 2003 10:56 PM

    I thought I remembered that W3C XQuery had a unique() function that would return a sequence identical to its arguments except with duplicate items removed, but I can’t find it in either the Tamino or W3C documentation. Is this just my imagination, or was it there and then removed, or is it there and I just can’t find it?

    (For people familiar with ADABAS/NATURAL, what I’m really looking for is the equivalent of a HISTOGRAM.)


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  • 2.  RE: unique() function?

    Posted Tue December 23, 2003 10:37 AM

    Hi Curtis,

    XQuery offers a distinct-values() function to get rid of duplicates
    in lists of atomic values. A list of nodes $nl is made unique by
    making it a path expression, for instance $nl/., but this also sorts
    it in document order. Tamino does currently not offer the
    distinct-values() function but will do so in the next version.

    Regards,
    Juliane.


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    #Tamino
    #API-Management


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