I am building a date_histogram query using aggregations. Per bucket are two
different aggregations. First aggregations summarizes the number of
activities and second one builds the sum over sum(duration per activity).
My Query looks like this:
"aggregations": {
"over-time": {
"date_histogram": {
"field": "timestamp",
"interval": "1M"
},
"aggregations": {
"activities": {
"sum": {
"field": "activity-count"
}
},
"duration": {
"sum": {
"field": "activity-duration"
}
}
}
}
}
Question: Required is a field containing the result of "activity-duration /
activity-count".
I would think about a scripted expression, but how to use it here. With ES
1.4 the scripted_metrics was introduced (as experimental), but I think that
is not what I am looking for.
Any idea?
regards,
markus
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