# Nested objects with many keys

**URL:** <https://discuss.elastic.co/t/nested-objects-with-many-keys/133850>\
**Category:** Elasticsearch\
**Created:** [May 30, 2018, 10:03am UTC](https://discuss.elastic.co/t/nested-objects-with-many-keys/133850 "2018-05-30T10:03:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ergo](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ergo/32/837_2.png) [@ergo](https://discuss.elastic.co/u/ergo)\
**Post date:** [May 30, 2018, 10:03am UTC](https://discuss.elastic.co/t/nested-objects-with-many-keys/133850/1 "2018-05-30T10:03:32Z")

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What are the limits for object keys in elasticsearch?

Is it feasible for me to store objects with 200-500 keys in them on average - where there would be up to 2000 keys that can appear in the documents?

I would store about 100 millions of those documents in my cluster.

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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:** [June 27, 2018, 10:03am UTC](https://discuss.elastic.co/t/nested-objects-with-many-keys/133850/2 "2018-06-27T10:03:38Z")

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Closed on June 27, 2018, 10:03am UTC

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