. . . "To date the query has been invoked ad hoc from an SSIS package, and my goal is to wrap this in a stored proc.We should know vehicleId, parameterId, and a reportStamp range, and should be able to fully leverage this index as we are attempting to return paramValue.What we are seeing is sometimes very good performance and takes less than a minute, and other times it takes many minutes, and I have bee" .