Re: [xsl] selective non duplicates

[David Carlisle <davidc@xxxxxxxxx>]

I'm confused as your sample input had no elements called count, but both
of your Xpath's assuming they were only missing a trailing ) 
sum a collection of count elements, so ought to return 0.


However

[1]
sum(clients/client
  [commissions/commission/earnerId =$curEarner]/
        products/product
          [id=../../commissions/commission[earnerId=$curEarner]/product/productId
           and
           not(productId =preceding-sibling::product/productId]/
        count)

Your products/product elements do not have any productId children so
the second clause of that and expression will be testing two empty sets
for equality, which is always true.

David

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