Issue Description
When we add a dimension to column grouping we are able to see the data of the dimension in adhoc view,
but when we create a report and try to view the report it is throwing an error saying:
"calculator not found for java.lang.String"
How to fix it?
Resolution
As it turned out, the error was related to the fact, that Ad-Hoc engine tried to apply Sum() calculation on a field
which returned integer values but has VARCHAR type in database and java.lang.String type in domain.
After default aggregation function was changed to CountAll() in domain designer, customer managed to open the report.
Ref. Case 01464329
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