example to show the difference between "sum by" and "sum without" (#3558)
example to show the difference between "sum by" and "sum without" (#3558)


GoogleCloudPlatform/prometheus,keegancsmith/prometheus,prometheus/prometheus,Conorbro/prometheus,Conorbro/prometheus,brancz/prometheus,kangwoo/prometheus,prometheus/prometheus,Stackdriver/stackdriver-prometheus,prometheus/prometheus,keegancsmith/prometheus,GoogleCloudPlatform/prometheus,Stackdriver/stackdriver-prometheus,GoogleCloudPlatform/prometheus,amorken/prometheus,Gouthamve/prometheus,Stackdriver/stackdriver-prometheus,brancz/prometheus,GoogleCloudPlatform/prometheus,Conorbro/prometheus,alileza/prometheus,keegancsmith/prometheus,Stackdriver/stackdriver-prometheus,keegancsmith/prometheus,alileza/prometheus,GoogleCloudPlatform/prometheus,Gouthamve/prometheus,alileza/prometheus,amorken/prometheus,Conorbro/prometheus,alileza/prometheus,AlekSi/prometheus,AlekSi/prometheus,prometheus/prometheus,prometheus/prometheus,AlekSi/prometheus,keegancsmith/prometheus,Gouthamve/prometheus,Gouthamve/prometheus,brancz/prometheus,amorken/prometheus,kangwoo/prometheus,alileza/prometheus,kangwoo/prometheus,kangwoo/prometheus,brancz/prometheus,amorken/prometheus,AlekSi/prometheus