# Reasonable feature request? map-reduce sibling pipeline aggregations
**URL:** https://discuss.elastic.co/t/reasonable-feature-request-map-reduce-sibling-pipeline-aggregations/64194
**Category:** Elasticsearch
**Created:** [October 27, 2016, 8:02pm UTC](https://discuss.elastic.co/t/reasonable-feature-request-map-reduce-sibling-pipeline-aggregations/64194 "2016-10-27T20:02:09Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Buck\_Evan](https://discuss.elastic.co/u/Buck_Evan)
#### Post date: [October 27, 2016, 8:02pm UTC](https://discuss.elastic.co/t/reasonable-feature-request-map-reduce-sibling-pipeline-aggregations/64194/1 "2016-10-27T20:02:09Z")
I'd like to be able to do more than one (chained) sibling aggregation with full script-ability.
Is this a reasonable feature to ask of ES? I'm not very familiar with its implementation of pipelined aggs.
Basically I want the script aggregation to work as a sibling pipeline aggregation:
[https://www.elastic.co/guide/en/elasticsearch/reference/5.0/search-aggregations-metrics-scripted-metric-aggregation.html](https://www.elastic.co/guide/en/elasticsearch/reference/5.0/search-aggregations-metrics-scripted-metric-aggregation.html)
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 5, 2017, 10:08pm UTC](https://discuss.elastic.co/t/reasonable-feature-request-map-reduce-sibling-pipeline-aggregations/64194/2 "2017-07-05T22:08:58Z")