# Reindex by grouping documents by Unique ID

**URL:** <https://discuss.elastic.co/t/reindex-by-grouping-documents-by-unique-id/280129>\
**Category:** Elasticsearch\
**Created:** [July 31, 2021, 3:15pm UTC](https://discuss.elastic.co/t/reindex-by-grouping-documents-by-unique-id/280129 "2021-07-31T15:15:35Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mrunalini](https://avatars.discourse-cdn.com/v4/letter/m/8e8cbc/32.png) [@mrunalini](https://discuss.elastic.co/u/mrunalini)\
**Post date:** [July 31, 2021, 3:15pm UTC](https://discuss.elastic.co/t/reindex-by-grouping-documents-by-unique-id/280129/1 "2021-07-31T15:15:35Z")

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Hi Everyone,

I want to reindex my Index which has different documents with unique id .

I want to reindex all the data into single documents against unique id.

is it possible to do that.

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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 28, 2021, 3:15pm UTC](https://discuss.elastic.co/t/reindex-by-grouping-documents-by-unique-id/280129/2 "2021-08-28T15:15:52Z")

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