# Conditional path in nested aggregation

**URL:** <https://discuss.elastic.co/t/conditional-path-in-nested-aggregation/121698>\
**Category:** Elasticsearch\
**Created:** [February 27, 2018, 4:51pm UTC](https://discuss.elastic.co/t/conditional-path-in-nested-aggregation/121698 "2018-02-27T16:51:38Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![elpaisa](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/elpaisa/32/27732_2.png) [@elpaisa](https://discuss.elastic.co/u/elpaisa)\
**Post date:** [February 27, 2018, 4:51pm UTC](https://discuss.elastic.co/t/conditional-path-in-nested-aggregation/121698/1 "2018-02-27T16:51:38Z")

</div>

Hi, I have a nested field with two properties:

```
{
    "rating": 2
    "victim": [{
        "ip": "...",
        "instanceId": "....""
    }]
}

```

I want to aggregate over the rating and get the IP or InstanceId for each document, not both in the bucket list.

Thanks.

---

<div class="post-metadata">

**Author:** ![elpaisa](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/elpaisa/32/27732_2.png) [@elpaisa](https://discuss.elastic.co/u/elpaisa)\
**Post date:** [February 28, 2018, 2:29pm UTC](https://discuss.elastic.co/t/conditional-path-in-nested-aggregation/121698/2 "2018-02-28T14:29:41Z")

</div>

After a lot of searching i found the way via painless:

```
"terms" : {
    "script" : {
        "source": "doc['victim.instanceId'].value == null ? doc['victim.ip'] : doc['victim.instanceId']",
        "lang": "painless"
    },
    "missing": "N/A"
}
```

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [March 28, 2018, 2:29pm UTC](https://discuss.elastic.co/t/conditional-path-in-nested-aggregation/121698/3 "2018-03-28T14:29:55Z")

</div>

Closed on March 28, 2018, 2:29pm UTC

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