In case of empty query results, return an empty matrix.
In case of empty query results, return an empty matrix.

SaltedMan/prometheus-annotated,fabxc/prometheus,jimmidyson/prometheus,tomwilkie/prometheus,sudhi-vm/prometheus,thachmai/prometheus,dpatel06/prometheus,robbiet480/prometheus,trigrass2/prometheus,prometheus/prometheus,jbdalido/prometheus,msiebuhr/prometheus,hustbill/prometheus,rajthilakmca/prometheus,adamron1/prometheus,yanghongkjxy/prometheus,cit-lab/prometheus,dalanlan/prometheus,prometheus/prometheus,ton31337/prometheus,kzittritsch/prometheus,gottwald/prometheus,wrouesnel/prometheus,flier/prometheus,Conorbro/prometheus,dpatel06/prometheus,gcnonato/prometheus,wxdublin/prometheus,Colstuwjx/prometheus,tattsun/prometheus,gesellix/prometheus,robbiet480/prometheus,abhishekamralkar/prometheus,prasincs/prometheus,eliothedeman/prometheus,dpatel06/prometheus,rajthilakmca/prometheus,gottwald/prometheus,RobertKielty/prometheus,yanghongkjxy/prometheus,jbdalido/prometheus,adamron1/prometheus,smyrman/prometheus,laushinka/prometheus,thachmai/prometheus,tomwilkie/prometheus,datajet-io/prometheus,wrouesnel/prometheus,sudhi-vm/prometheus,gcnonato/prometheus,gottwald/prometheus,adamron1/prometheus,amorken/prometheus,datajet-io/prometheus,Gouthamve/prometheus,abhishekamralkar/prometheus,bluecmd/prometheus,thachmai/prometheus,gottwald/prometheus,prometheus/prometheus,RobertKielty/prometheus,iksaif/prometheus,GoogleCloudPlatform/prometheus,brancz/prometheus,kzittritsch/prometheus,wxdublin/prometheus,thachmai/prometheus,fabxc/prometheus,sudhi-vm/prometheus,msiebuhr/prometheus,abhishekamralkar/prometheus,msiebuhr/prometheus,Gouthamve/prometheus,nicr9/prometheus,smyrman/prometheus,wrouesnel/prometheus,brian-brazil/prometheus,alileza/prometheus,mtanda/prometheus,flier/prometheus,slok/prometheus,Gouthamve/prometheus,tattsun/prometheus,datajet-io/prometheus,Stackdriver/stackdriver-prometheus,amorken/prometheus,dmilstein/prometheus,Conorbro/prometheus,fabric8io/prometheus,agaoglu/prometheus,smyrman/prometheus,Stackdriver/stackdriver-prometheus,smyrman/prometheus,dmilstein/prometheus,jmcfarlane/prometheus,brancz/prometheus,wndhydrnt/prometheus,ton31337/prometheus,abhishekamralkar/prometheus,bluecmd/prometheus,GoogleCloudPlatform/prometheus,q3k/prometheus,bluecmd/prometheus,amorken/prometheus,prometheus/prometheus,mrwacky42/prometheus,keegancsmith/prometheus,brancz/prometheus,cit-lab/prometheus,dmilstein/prometheus,justintung/prometheus,yanghongkjxy/prometheus,trigrass2/prometheus,cit-lab/prometheus,prasincs/prometheus,keegancsmith/prometheus,Colstuwjx/prometheus,Gouthamve/prometheus,trigrass2/prometheus,slok/prometheus,flier/prometheus,alileza/prometheus,iksaif/prometheus,iksaif/prometheus,kzittritsch/prometheus,laushinka/prometheus,fabric8io/prometheus,JavierZunzunegui/prometheus,ton31337/prometheus,kangwoo/prometheus,Dieterbe/prometheus,prometheus/prometheus,wndhydrnt/prometheus,alileza/prometheus,dsymonds/prometheus,SaltedMan/prometheus-annotated,kzittritsch/prometheus,keegancsmith/prometheus,JavierZunzunegui/prometheus,dln/prometheus,prasincs/prometheus,robbiet480/prometheus,gesellix/prometheus,justintung/prometheus,Conorbro/prometheus,Colstuwjx/prometheus,Dieterbe/prometheus,justintung/prometheus,rajthilakmca/prometheus,gcnonato/prometheus,jmcfarlane/prometheus,tattsun/prometheus,mtanda/prometheus,RobertKielty/prometheus,alileza/prometheus,nicr9/prometheus,jmcfarlane/prometheus,dalanlan/prometheus,alileza/prometheus,RobertKielty/prometheus,kangwoo/prometheus,jimmidyson/prometheus,hustbill/prometheus,agaoglu/prometheus,prasincs/prometheus,keegancsmith/prometheus,dln/prometheus,iksaif/prometheus,fabxc/prometheus,keegancsmith/prometheus,jmcfarlane/prometheus,dsymonds/prometheus,agaoglu/prometheus,bluecmd/prometheus,GoogleCloudPlatform/prometheus,tomwilkie/prometheus,PrFalken/prometheus,eliothedeman/prometheus,Dieterbe/prometheus,sudhi-vm/prometheus,Conorbro/prometheus,PrFalken/prometheus,AlekSi/prometheus,trigrass2/prometheus,wxdublin/prometheus,PrFalken/prometheus,hustbill/prometheus,fabric8io/prometheus,wndhydrnt/prometheus,tomwilkie/prometheus,eliothedeman/prometheus,jimmidyson/prometheus,kangwoo/prometheus,Stackdriver/stackdriver-prometheus,amorken/prometheus,wrouesnel/prometheus,dalanlan/prometheus,justintung/prometheus,brian-brazil/prometheus,robbiet480/prometheus,fabxc/prometheus,JavierZunzunegui/prometheus,datajet-io/prometheus,SaltedMan/prometheus-annotated,SaltedMan/prometheus-annotated,mtanda/prometheus,slok/prometheus,Colstuwjx/prometheus,mrwacky42/prometheus,agaoglu/prometheus,AlekSi/prometheus,yanghongkjxy/prometheus,q3k/prometheus,JavierZunzunegui/prometheus,nicr9/prometheus,adamron1/prometheus,eliothedeman/prometheus,hustbill/prometheus,gcnonato/prometheus,brian-brazil/prometheus,Stackdriver/stackdriver-prometheus,tattsun/prometheus,q3k/prometheus,slok/prometheus,mrwacky42/prometheus,dsymonds/prometheus,gesellix/prometheus,mtanda/prometheus,AlekSi/prometheus,brancz/prometheus,jbdalido/prometheus,msiebuhr/prometheus,rajthilakmca/prometheus,GoogleCloudPlatform/prometheus,laushinka/prometheus,ton31337/prometheus,dln/prometheus,fabric8io/prometheus,GoogleCloudPlatform/prometheus,cit-lab/prometheus,dln/prometheus,PrFalken/prometheus,dsymonds/prometheus,gesellix/prometheus,laushinka/prometheus,kangwoo/prometheus,AlekSi/prometheus,dmilstein/prometheus,jbdalido/prometheus,q3k/prometheus