# Logstash - \_source sibblings in output are not supported?

**URL:** <https://discuss.elastic.co/t/logstash-source-sibblings-in-output-are-not-supported/123406>\
**Category:** Logstash\
**Created:** [March 11, 2018, 4:51am UTC](https://discuss.elastic.co/t/logstash-source-sibblings-in-output-are-not-supported/123406 "2018-03-11T04:51:48Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ehtishamkhan](https://avatars.discourse-cdn.com/v4/letter/e/ed8c4c/32.png) [@ehtishamkhan](https://discuss.elastic.co/u/ehtishamkhan)\
**Post date:** [March 11, 2018, 4:51am UTC](https://discuss.elastic.co/t/logstash-source-sibblings-in-output-are-not-supported/123406/1 "2018-03-11T04:51:48Z")

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By default, elements in \_source fields are accessible. How do I reference \_source siblings in logstash output config? e.g. highlight, \_id, \_score, \_index etc.

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**Author:** ![yaauie](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/yaauie/32/23363_2.png) [@yaauie](https://discuss.elastic.co/u/yaauie)\
**Post date:** [March 11, 2018, 9:50pm UTC](https://discuss.elastic.co/t/logstash-source-sibblings-in-output-are-not-supported/123406/2 "2018-03-11T21:50:52Z")

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It is unclear from your post what you're intending to accomplish.

Typically, `highlight` and `_score` are attributes of search query response from Elasticsearch, indicating how your specific query got the the documents returned in the result set, while `_id` and `_index` are attributes of each document, indicating the document's id and the index in which it is stored.

As such, they aren't present or accessible in a Logstash output _to_ Elasticsearch, because the document has not yet been persisted to Elasticsearch.

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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:** [April 8, 2018, 9:51pm UTC](https://discuss.elastic.co/t/logstash-source-sibblings-in-output-are-not-supported/123406/3 "2018-04-08T21:51:09Z")

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Closed on April 8, 2018, 9:51pm UTC

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