Hi Jakob,
MarkLogic does implement the "except" operator. You can use it like this:
collection("c1") except collection("c2")
John
On 09/05/11 16:03, Jakob Fix wrote:
> Hi,
>
> I have two collections c1 and c2 of documents where c2 is a subset of
> c1, and I would like to get a sequence of all documents in c1 that are
> not in c2. I was hoping to use the except [1] operator for this, but
> MarkLogic does not seem to know it.
>
> Well, I just read [2] and there it says: " there is no requirement
> that implementations should actually provide these functions" [3]. If
> that is indeed the case, could you please tell me how I can get an
> equivalent functionality? By the way, I tried c1 - c2, and it doesn't
> work.
>
> thanks,
> Jakob.
>
>
> [1] http://www.w3.org/TR/xpath-functions/#func-except
> [2] http://www.w3.org/TR/xpath-functions
> [3] http://www.w3.org/TR/xpath-functions/#namespace-prefixes
--
John Snelson, Senior Engineer http://twitter.com/jpcs
MarkLogic Corporation http://www.marklogic.com
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