# Can the name of the bucket aggregation key name be modified?

**URL:** <https://discuss.elastic.co/t/can-the-name-of-the-bucket-aggregation-key-name-be-modified/51107>\
**Category:** Elasticsearch\
**Created:** [May 27, 2016, 2:14am UTC](https://discuss.elastic.co/t/can-the-name-of-the-bucket-aggregation-key-name-be-modified/51107 "2016-05-27T02:14:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mark2](https://avatars.discourse-cdn.com/v4/letter/m/e19adc/32.png) [@mark2](https://discuss.elastic.co/u/mark2)\
**Post date:** [May 27, 2016, 2:14am UTC](https://discuss.elastic.co/t/can-the-name-of-the-bucket-aggregation-key-name-be-modified/51107/1 "2016-05-27T02:14:56Z")

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Hi There,

Can the name of the bucket aggregation key name be modified?

I was looking through the documentation and Google and could not find a way to modify the name of the key returned in the aggregation results. Ideally I would want the results to include the key of the item it represents. In this case "key" --\> "[circuit.type.id](http://circuit.type.id)"

Thanks,

Mark

```
"buckets": [
    {
      "key": 120,
      "doc_count": 14538,
      "sum_kwh": {
        "value": 682.5138338960242
      }
    },
    {
      "key": 111,
      "doc_count": 29229,
      "sum_kwh": {
        "value": 192.03866659135383
      }
    }
  ]
}
```

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<div class="post-metadata">

**Author:** ![jpountz](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jpountz/32/45836_2.png) [@jpountz](https://discuss.elastic.co/u/jpountz)\
**Post date:** [May 30, 2016, 2:10pm UTC](https://discuss.elastic.co/t/can-the-name-of-the-bucket-aggregation-key-name-be-modified/51107/2 "2016-05-30T14:10:06Z")

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You can't modify the key, but you can add metadata: [https://www.elastic.co/guide/en/elasticsearch/reference/current/agg-metadata.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/agg-metadata.html)

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 5, 2017, 10:47pm UTC](https://discuss.elastic.co/t/can-the-name-of-the-bucket-aggregation-key-name-be-modified/51107/3 "2017-07-05T22:47:58Z")

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