# Aggregate nested arrays

**URL:** <https://discuss.elastic.co/t/aggregate-nested-arrays/285934>\
**Category:** Logstash\
**Created:** [October 5, 2021, 2:17pm UTC](https://discuss.elastic.co/t/aggregate-nested-arrays/285934 "2021-10-05T14:17:10Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\
**Post date:** [October 5, 2021, 5:19pm UTC](https://discuss.elastic.co/t/aggregate-nested-arrays/285934/2 "2021-10-05T17:19:48Z")

</div>

> [@Lyes\_Ouchene](#):
>
> The desired result is to have a list of services, for each service there will be a list of characteristics.

There is an example of building a list inside a list [here](https://discuss.elastic.co/t/split-filebeat-log-with-a-variable-length-and-create-multiple-events-group-by-a-field/269630/2).

---

_[View the full topic](https://discuss.elastic.co/t/aggregate-nested-arrays/285934)._