Accessing Aggregate Statistics Through tsquery
You can use the stats function to access aggregate statistics directly in tsquery.
select stats(fd_open_across_datanodes, max)
where category = service and serviceDisplayName = “my-hdfs-service” will return a
single time-series stream containing the just the maximum statistic values from the
fd_open_across_datanodes stream. The following
statistics are available through the stats function: