# How to specify a list of required fields (must be in all documents) for a particular index?

**URL:** <https://discuss.elastic.co/t/how-to-specify-a-list-of-required-fields-must-be-in-all-documents-for-a-particular-index/194567>\
**Category:** Elasticsearch\
**Created:** [August 9, 2019, 7:57am UTC](https://discuss.elastic.co/t/how-to-specify-a-list-of-required-fields-must-be-in-all-documents-for-a-particular-index/194567 "2019-08-09T07:57:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Melok](https://avatars.discourse-cdn.com/v4/letter/m/da6949/32.png) [@Melok](https://discuss.elastic.co/u/Melok)\
**Post date:** [August 9, 2019, 7:57am UTC](https://discuss.elastic.co/t/how-to-specify-a-list-of-required-fields-must-be-in-all-documents-for-a-particular-index/194567/1 "2019-08-09T07:57:36Z")

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How to specify a list of required fields (must be in all documents) for a particular index?

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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:** [September 6, 2019, 7:57am UTC](https://discuss.elastic.co/t/how-to-specify-a-list-of-required-fields-must-be-in-all-documents-for-a-particular-index/194567/2 "2019-09-06T07:57:43Z")

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