// Aula 19 - Operadores de agregação

sum by(job, instance, device)(node_filesystem_size_bytes)

count by(release)(node_uname_info)

sum by()(node_filesystem_size_bytes)

sum(node_filesystem_size_bytes)

count without(device)(node_disk_read_bytes_total)

count without(cpu)(count without (mode)(node_cpu_seconds_total))

count(count by(cpu)(node_cpu_seconds_total))