Median of last top N hits in ElasticSearch -


given elasticsearch index objects like

{   "key": "string",   "creation_date": "date",   "metric":"number" }

is possible calculate median of metric last n hits (ordered creation_date) of each day?

text steps of such query:

  1. group day using creation_date field
  2. group key
  3. take last n items (ordered creation_date)
  4. calculate median between them

thanks!


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