Playing with maps on ES 7.10.2, I'm stuck and I need help.
I have a first index containing areas and sub areas (geojson) with a code (ID).
I have another index containing documents (with a field area_id)
--> I want to display the count of documents on each related region with colors
There is no problem when the field area_id contains a single value. It works !!
But many of the documents have their field 'area_id' set to several values (as an Array of value) and in this case regions don't match the documents (and of course the displayed count is wrong).
I created (Ruby in Logstash or painless in scripted field) a new field of type 'keyword' containing all the values separated by space for joining but without success.
Thank you for your help.