Counting unique values in y axis of a line/bar visualization

[Omer_Botenski]

Hi there!

I'm trying to create a line/bar visualization based upon a query which returns all tests I run on my system. The main goal is to show a count of unique test titles on the Y axis (since some tests run several times a day, and I only need to which ran that day, not how many times), while the x axis is date histogram with a day interval and split series of the test titles.
The visualization shows all of the tests which ran that day. Looks like this:

What am I doing wrong?

[markov00 (Marco Vettorello)]

Hi there, if you want to visualize the daily unique count for test, just use Unique count as metric on the test name field (like you are already doing) and use only a date histogram on the x axis. You don't have to split series because this will perform the following:
on each daily bucket, group all the documents by the fullName_keyword field, then on each group of documents (on each test) apply the unique count on the same field. This will result in a stacked bar chart each bar of height 1.
If you remove the split Series aggregation it should work as desired