I know I can do many cool stuff in logstash, for example calculating time differences and store it in a field.
Now my question, is it possible to do such stuff in kibana in realtime too?
Say, I have following timestamps in my event
Is it possible to calculate a "virtual" field "timeDiff" in kibana by calculating timestampEnd-timestampStart?
I don't need to search by these fields, but aggregating on them would help.
Other familiar topic is, to convert for example a field which contains a value in seconds to hours to have a better overview in dashboards.
Is that possible? How?