There is a reference to the 'distinct-nodes' function in the documentation with a comment that it is only supported in XQuery version 0.9-ml. If I try to use this function I get an error saying it's not recognized. I have come across a couple of situations that seem to be an ideal fit for this function. Although I've been able to implement them, the result is a rather convoluted use of 'distinct-values'. I also see some references in the archived mailing list that refer to the use of this function as well, and those examples are exactly the sort of thing I'm trying to solve. I'm wondering why this function was only in 0.9-ml, why it was discontinued, and if there's a good replacement for it.
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