# Is aggregation partitions results are unique?

**URL:** <https://discuss.elastic.co/t/is-aggregation-partitions-results-are-unique/111004>\
**Category:** Elasticsearch\
**Created:** [December 11, 2017, 4:47am UTC](https://discuss.elastic.co/t/is-aggregation-partitions-results-are-unique/111004 "2017-12-11T04:47:26Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![repakaravikanth](https://avatars.discourse-cdn.com/v4/letter/r/41988e/32.png) [@repakaravikanth](https://discuss.elastic.co/u/repakaravikanth)\
**Post date:** [December 11, 2017, 4:47am UTC](https://discuss.elastic.co/t/is-aggregation-partitions-results-are-unique/111004/1 "2017-12-11T04:47:26Z")

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Hi,

I am trying to use partitions for my pagination support. As I read in other posts about this, the terms can be in any partition depend on filed hash value. But, if we traverse all partitions can we get all terms without duplicates? What happens if there is a client side delay(few secs to mins) in between retrieving partitions results? Is it guaranteed that next partition results are unique and non-duplicate to previous partition result assuming there is no change in requested partitions count?

Thanks.

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**Author:** ![Mark\_Harwood](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mark_harwood/32/10538_2.png) [@Mark\_Harwood](https://discuss.elastic.co/u/Mark_Harwood)\
**Post date:** [December 11, 2017, 9:30am UTC](https://discuss.elastic.co/t/is-aggregation-partitions-results-are-unique/111004/2 "2017-12-11T09:30:26Z")

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> [@repakaravikanth](#):
>
> Is it guaranteed that next partition results are unique and non-duplicate

A term is guaranteed to hash to only one partition and always the same partition given the same number of partitions in repeated calls.

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<div class="post-metadata">

**Author:** ![repakaravikanth](https://avatars.discourse-cdn.com/v4/letter/r/41988e/32.png) [@repakaravikanth](https://discuss.elastic.co/u/repakaravikanth)\
**Post date:** [December 12, 2017, 1:20am UTC](https://discuss.elastic.co/t/is-aggregation-partitions-results-are-unique/111004/3 "2017-12-12T01:20:31Z")

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Thanks for confirmation.

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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 9, 2018, 1:26am UTC](https://discuss.elastic.co/t/is-aggregation-partitions-results-are-unique/111004/4 "2018-01-09T01:26:38Z")

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