# Can we merge two similar structure indices in elasticsearch?

**URL:** <https://discuss.elastic.co/t/can-we-merge-two-similar-structure-indices-in-elasticsearch/212920>\
**Category:** Elasticsearch\
**Created:** [December 24, 2019, 6:36am UTC](https://discuss.elastic.co/t/can-we-merge-two-similar-structure-indices-in-elasticsearch/212920 "2019-12-24T06:36:31Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Amit\_Chauhan](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/amit_chauhan/32/45644_2.png) [@Amit\_Chauhan](https://discuss.elastic.co/u/Amit_Chauhan)\
**Post date:** [December 24, 2019, 6:36am UTC](https://discuss.elastic.co/t/can-we-merge-two-similar-structure-indices-in-elasticsearch/212920/1 "2019-12-24T06:36:31Z")

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I want to merge similar structure indices in elasticsearch. For example I have 10 indices . 5 are same structure and another 5 are another structure indices. each indices have 100 rows . So I need only two indices with 500-500 rows.

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [December 24, 2019, 8:36am UTC](https://discuss.elastic.co/t/can-we-merge-two-similar-structure-indices-in-elasticsearch/212920/2 "2019-12-24T08:36:22Z")

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You can may be use the reindex API to reindex old indices into one new index

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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 21, 2020, 8:36am UTC](https://discuss.elastic.co/t/can-we-merge-two-similar-structure-indices-in-elasticsearch/212920/3 "2020-01-21T08:36:31Z")

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