I`m looking for a cummulative unique count in Kibana. I want to count unique users of an application over time. It´s not the unique count of each time bucket. Instead of sequential time buckets I need a bucket to have the same starting time, but an increasing ending time.
This topic was opend in October 2017 already: Cumulative Sum regardless of time interval
I do also know that in Elasticsearch 7.4 the aggregation cummulative cardinaltiy is realeased. But is there any work around available without this new aggregation?