Metric "Count unique"

[couds]

Hi Thanks for your work on this plugin.

It is possible to count only unique values of certain term?

The use case its that I store all activity of the users, but if I use this at it is will count activity in total (per document) instead of per user (count active users for example)

A example dataset could be this

{"index": {"_index": "my-index", "_type": "doc"}}
{"timestamp": 1525000000000, "createdAt": 1525000000000, "daysBetween": 0, "userId": 1}
{"index": {"_index": "my-index", "_type": "doc"}}
{"timestamp": 1525000000000, "createdAt": 1525000000000, "daysBetween": 0, "userId": 1}
{"index": {"_index": "my-index", "_type": "doc"}}
{"timestamp": 1525000000000, "createdAt": 1525000000000, "daysBetween": 0, "userId": 2}
{"index": {"_index": "my-index", "_type": "doc"}}
{"timestamp": 1525000000000, "createdAt": 1525000000000, "daysBetween": 0, "userId": 1}
{"index": {"_index": "my-index", "_type": "doc"}}
{"timestamp": 1525086400000, "createdAt": 1525000000000, "daysBetween": 1, "userId": 1}
{"index": {"_index": "my-index", "_type": "doc"}}
{"timestamp": 1525086400000, "createdAt": 1525000000000, "daysBetween": 1, "userId": 2}
{"index": {"_index": "my-index", "_type": "doc"}}
{"timestamp": 1525086400000, "createdAt": 1525000000000, "daysBetween": 1, "userId": 2}
{"index": {"_index": "my-index", "_type": "doc"}}
{"timestamp": 1525172800000, "createdAt": 1525000000000, "daysBetween": 2, "userId": 1}
{"index": {"_index": "my-index", "_type": "doc"}}
{"timestamp": 1525172800000, "createdAt": 1525000000000, "daysBetween": 2, "userId": 1}
{"index": {"_index": "my-index", "_type": "doc"}}
{"timestamp": 1525259200000, "createdAt": 1525000000000, "daysBetween": 3, "userId": 2}

With this dataset I get this

But I wanted something like

total	date	0	1	2	3
6	2018/04/29	2	2	1	1

Thanks

[bLuka]

I am in the same case. Some workaround would be to loop over a bunch of days in Python, query all logs from a filter, count it, and insert another log type reporting the amount of active user on the current day.

Not scalable though.

@couds Did you find a solution?