# Find similar records through MLT from millions records

**URL:** <https://discuss.elastic.co/t/find-similar-records-through-mlt-from-millions-records/162190>\
**Category:** Elasticsearch\
**Created:** [December 27, 2018, 2:31am UTC](https://discuss.elastic.co/t/find-similar-records-through-mlt-from-millions-records/162190 "2018-12-27T02:31:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Suvam](https://avatars.discourse-cdn.com/v4/letter/s/7ab992/32.png) [@Suvam](https://discuss.elastic.co/u/Suvam)\
**Post date:** [December 27, 2018, 2:31am UTC](https://discuss.elastic.co/t/find-similar-records-through-mlt-from-millions-records/162190/1 "2018-12-27T02:31:20Z")

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How can we get all similar/duplicate record/document depending upon certain fields. There are 20 millions of documents. Can we have weightage on these fields collectively. What is the best way in elasticsearch.

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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:** [January 24, 2019, 2:31am UTC](https://discuss.elastic.co/t/find-similar-records-through-mlt-from-millions-records/162190/2 "2019-01-24T02:31:21Z")

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