https://discuss.elastic.co/t/some-index-string-fields-not-appearing-in-visualization-aggregation/71829/3
Some index string fields not appearing in visualization aggregation - #3 by elasticheart - Kibana -...
Jan 18, 2017 - Hi, I was using Kibana 4.5 and I used to generate pie charts, and split them using Aggregation on field names. Now I switched to Kibana GA 5.0.0 and when I try...