# Move subarrays to document root

**URL:** <https://discuss.elastic.co/t/move-subarrays-to-document-root/143876>\
**Category:** Logstash\
**Created:** [August 10, 2018, 1:49pm UTC](https://discuss.elastic.co/t/move-subarrays-to-document-root/143876 "2018-08-10T13:49:20Z")\
**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:** [August 10, 2018, 2:03pm UTC](https://discuss.elastic.co/t/move-subarrays-to-document-root/143876/2 "2018-08-10T14:03:24Z")

</div>

```
    ruby { code => 'event.get("[com][openexchange]").each { | k, v| event.set(k, v) }' }
    mutate { remove_field => ["[com][openexchange]", "com" ] }
```

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_[View the full topic](https://discuss.elastic.co/t/move-subarrays-to-document-root/143876)._