Changes

GROUP BY districtfree_view_hazardclosed.Region, districtfree_view_hazardclosed.Province, districtfree_view_hazardclosed.District, districtfree_view_hazardclosed.district_guid;

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In this case, it seemed safe to make the according changes, because it is not very likely that another status will be added to the system (and thus the two where clauses are and will stay equivalent). However, this cannot be generalised to other cases.