# Do multiple nested fields create exponential performance impact?

**URL:** <https://discuss.elastic.co/t/do-multiple-nested-fields-create-exponential-performance-impact/279752>\
**Category:** Elasticsearch\
**Created:** [July 27, 2021, 3:56pm UTC](https://discuss.elastic.co/t/do-multiple-nested-fields-create-exponential-performance-impact/279752 "2021-07-27T15:56:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![weryouasdf](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/weryouasdf/32/92210_2.png) [@weryouasdf](https://discuss.elastic.co/u/weryouasdf)\
**Post date:** [July 27, 2021, 3:56pm UTC](https://discuss.elastic.co/t/do-multiple-nested-fields-create-exponential-performance-impact/279752/1 "2021-07-27T15:56:15Z")

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Hi there!

If i have a nested object that contains its own nested object, will my cluster have exponential costs to performance? As in, if I have a single document with a nested field with 5 values, but each nested value itself contains a nested field with 5 values, will there be 26 documents in total, or way more?

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [August 24, 2021, 3:56pm UTC](https://discuss.elastic.co/t/do-multiple-nested-fields-create-exponential-performance-impact/279752/2 "2021-08-24T15:56:44Z")

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