Trying to filter Pie chart with minimum unique count of docs

[es_noobb]

I am trying to filter the kibana visualization here, and I want the chart to display only when the number of processes are more than two. My theory is that every process should have a unique hash, so if any hash has two different processes, then only it should display. The inside pie is the hash and the outer one is the process. I tried using min_doc_count:2, but the the issue is it display when there are more than 2 doc count, whereas what I want is it to display where there is more than 2 unique count of docs. Help appreciated

[bhavyarm]

Am tagging our viz team here: @ppisljar
Thanks,
Bhavya

[es_noobb]

Thanks...it would be a lot of help

[ppisljar (Peter Pisljar)]

this is unfortunately not possible at the moment, as kibana does not yet support bucket selector pipeline aggregation.