# "Precomputed hashes" on client side

**URL:** <https://discuss.elastic.co/t/precomputed-hashes-on-client-side/281774>\
**Category:** Elasticsearch\
**Created:** [August 18, 2021, 6:46am UTC](https://discuss.elastic.co/t/precomputed-hashes-on-client-side/281774 "2021-08-18T06:46:55Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jidetashuo](https://avatars.discourse-cdn.com/v4/letter/j/5e9695/32.png) [@jidetashuo](https://discuss.elastic.co/u/jidetashuo)\
**Post date:** [August 18, 2021, 6:46am UTC](https://discuss.elastic.co/t/precomputed-hashes-on-client-side/281774/1 "2021-08-18T06:46:55Z")

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I found documentation on "Precomputed hashes" on client side but it does not mention how,how I can generate murmur hash outside of ElasticSearch and later use that to find cardinality

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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 15, 2021, 6:47am UTC](https://discuss.elastic.co/t/precomputed-hashes-on-client-side/281774/2 "2021-09-15T06:47:27Z")

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