# RFC - Lucene based kNN search support in core OpenSearch

**URL:** <https://forum.opensearch.org/t/rfc-lucene-based-knn-search-support-in-core-opensearch/9900>\
**Category:** Request For Comments\
**Tags:** rfc\
**Created:** [June 10, 2022, 11:10pm UTC](https://forum.opensearch.org/t/rfc-lucene-based-knn-search-support-in-core-opensearch/9900 "2022-06-10T23:10:55Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![kris](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.opensearch.org/kris/32/2208_2.png) [@kris](https://forum.opensearch.org/u/kris)\
**Post date:** [June 10, 2022, 11:10pm UTC](https://forum.opensearch.org/t/rfc-lucene-based-knn-search-support-in-core-opensearch/9900/1 "2022-06-10T23:10:55Z")

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Request for comment: Build a new field type and query type in OpenSearch to support ANN search through Lucene. Feedback would be appreciated.

[https://github.com/opensearch-project/OpenSearch/issues/3545](https://github.com/opensearch-project/OpenSearch/issues/3545)

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**Author:** ![kris](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.opensearch.org/kris/32/2208_2.png) [@kris](https://forum.opensearch.org/u/kris)\
**Post date:** [June 10, 2022, 11:12pm UTC](https://forum.opensearch.org/t/rfc-lucene-based-knn-search-support-in-core-opensearch/9900/2 "2022-06-10T23:12:15Z")

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@martin.g would appreciate everyone’s feedback - thank you

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<div class="post-metadata">

**Author:** ![kris](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.opensearch.org/kris/32/2208_2.png) [@kris](https://forum.opensearch.org/u/kris)\
**Post date:** [August 9, 2022, 8:26pm UTC](https://forum.opensearch.org/t/rfc-lucene-based-knn-search-support-in-core-opensearch/9900/3 "2022-08-09T20:26:46Z")

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this RFC is now closed - thank you to those who provided feedback.