Metric count on multiple indices

Elastic Stack Kibana
1

Hi All,
I'm using ES and Kibana on my thesis work and I faced up to the count metric
the question is, is there a way to count grouping by index ?
I mean, I would like to get 1 point even if the searched term (e.g color:red) is present more than once into the index; of course if the term is present in other index too I would get the count of index where term is present.

thanks in advance
Dominik

2

Would using the "Unique Count" aggregation on an index pattern that points to these multiple indices address your use case?

3

You can group and count by index but I don't know of a way to do a unique count. What's called "Unique Count" in Kibana that @tbragin has mentioned is using the Cardinality Aggregation which is fast but not accurate - You can improve accuracy but I am not sure you can ever be sure the data is 100% accurate.

-- Asaf.