Hi Olav, thanks for your question.
The way that queries are generated when using a Crosstab differs from other visualizations on the dashboard. We would need some more context to speak specifically to your case.. Have you opened a case with IBM Support about this yet?
We can work with the Support team to see if the issue can be resolved, or if the query is indeed not supported, to get you a tech note or some other form of documentation to provide you with other options.
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Brennan Fox
Product Quality @ IBM Cognos Analytics
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