I am new to Kibana. I already have existing index patterns and logs, so I mostly worked with visualization and dashboard. However, I don't quite understand index pattern.
Can someone please explain index pattern in detail? I found https://www.elastic.co/guide/en/kibana/current/index-patterns.html, but I need little more understanding.
The reason why I am asking is when I export dashboard, it saves index pattern. When I import that json file to prod, it overwrites index pattern as well. I would like to understand what kind of changes that index pattern can have like fields or property.