# Relationship

**URL:** <https://discuss.elastic.co/t/relationship/47529>\
**Category:** Logstash\
**Created:** [April 15, 2016, 6:03pm UTC](https://discuss.elastic.co/t/relationship/47529 "2016-04-15T18:03:37Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Bvdv](https://avatars.discourse-cdn.com/v4/letter/b/87869e/32.png) [@Bvdv](https://discuss.elastic.co/u/Bvdv)\
**Post date:** [April 15, 2016, 6:03pm UTC](https://discuss.elastic.co/t/relationship/47529/1 "2016-04-15T18:03:37Z")

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I have been using logstash to import data with JDBC. When I import flat datasets this is no problem. But I also import " couple tables [relational]", which include the keys from the flat datasets. So I do not want to use the \_id from logstash, but our own UUID's. Is this possible?

Thanks

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [April 15, 2016, 8:10pm UTC](https://discuss.elastic.co/t/relationship/47529/2 "2016-04-15T20:10:45Z")

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Yes, just set the `document_id` in the output tt that one - [https://www.elastic.co/guide/en/logstash/current/plugins-outputs-elasticsearch.html#plugins-outputs-elasticsearch-document\_id](https://www.elastic.co/guide/en/logstash/current/plugins-outputs-elasticsearch.html#plugins-outputs-elasticsearch-document_id)

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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 6, 2017, 5:02am UTC](https://discuss.elastic.co/t/relationship/47529/3 "2017-07-06T05:02:02Z")

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Closed on July 6, 2017, 5:02am UTC