# Ensuring uniqueness of IDs across indices during insertion

**URL:** https://discuss.elastic.co/t/ensuring-uniqueness-of-ids-across-indices-during-insertion/257113
**Category:** Elasticsearch
**Created:** [November 30, 2020, 6:29pm UTC](https://discuss.elastic.co/t/ensuring-uniqueness-of-ids-across-indices-during-insertion/257113 "2020-11-30T18:29:13Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![jmaharjan](https://avatars.discourse-cdn.com/v4/letter/j/9fc29f/32.png) [@jmaharjan](https://discuss.elastic.co/u/jmaharjan)
#### Post date: [November 30, 2020, 6:29pm UTC](https://discuss.elastic.co/t/ensuring-uniqueness-of-ids-across-indices-during-insertion/257113/1 "2020-11-30T18:29:13Z")

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From what I understand, if we assign explicit ids to documents we might end up with multiple documents with the same id in different indices. Is there a way to ensure, when using explicit document ids, that a document id is unique across all indices?

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### Author: ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [November 30, 2020, 6:44pm UTC](https://discuss.elastic.co/t/ensuring-uniqueness-of-ids-across-indices-during-insertion/257113/2 "2020-11-30T18:44:01Z")

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No, there is not.

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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: [December 28, 2020, 6:44pm UTC](https://discuss.elastic.co/t/ensuring-uniqueness-of-ids-across-indices-during-insertion/257113/3 "2020-12-28T18:44:08Z")

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