Thanks Andreas,
I have the following problem using your example:
lq "GET services\nFilter: host_name = EPUS-QAS01-0201-MX01-023\nFilter: service_description = Interface ae0\nColumns: rrddata:innucast.max,1,*:1592037600:1592066400:1\nOutputFormat: json"
and the result is [[null]].
When I type in lq “GET services\nFilter: host_name = EPUS-QAS01-0201-MX01-023\nFilter: service_description = Interface ae0\nOutputFormat: json”
I get very long output and I don’t know how to search for the maximum value for the last 35 days.