GetServices API sorted by p99 desc

pkg/query-service/app/clickhouseReader/reader.go

@@ -82,7 +82,7 @@ func (r *ClickHouseReader) GetServices(ctx context.Context, queryParams *model.G
 
 	serviceItems := []model.ServiceItem{}
 
-	query := fmt.Sprintf("SELECT serviceName, quantile(0.99)(durationNano) as p99, avg(durationNano) as avgDuration, count(*) as numCalls FROM %s WHERE timestamp>='%s' AND timestamp<='%s' AND kind='2' GROUP BY serviceName", r.indexTable, strconv.FormatInt(queryParams.Start.UnixNano(), 10), strconv.FormatInt(queryParams.End.UnixNano(), 10))
+	query := fmt.Sprintf("SELECT serviceName, quantile(0.99)(durationNano) as p99, avg(durationNano) as avgDuration, count(*) as numCalls FROM %s WHERE timestamp>='%s' AND timestamp<='%s' AND kind='2' GROUP BY serviceName ORDER BY p99 DESC", r.indexTable, strconv.FormatInt(queryParams.Start.UnixNano(), 10), strconv.FormatInt(queryParams.End.UnixNano(), 10))
 
 	err := r.db.Select(&serviceItems, query)