grafana错误率显示报错,这个要怎么解决


查询语句:
SELECT sum(“error”) / sum(“all”) FROM (SELECT sum(“count”) AS “all” FROM “$measurement_name” WHERE “transaction” = ‘all’ AND “application” =~ /^$application$/ AND $timeFilter GROUP BY time($__interval) fill(null)), (SELECT sum(“countError”) AS “error” FROM “$measurement_name” WHERE “transaction” = ‘all’ AND “application” =~ /^$application$/ AND $timeFilter GROUP BY time($__interval) fill(null))