# Aggregation on fields

**URL:** <https://discuss.elastic.co/t/aggregation-on-fields/24383>\
**Category:** Elasticsearch\
**Created:** [June 25, 2015, 10:54pm UTC](https://discuss.elastic.co/t/aggregation-on-fields/24383 "2015-06-25T22:54:13Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![bvnagaraju](https://avatars.discourse-cdn.com/v4/letter/b/ed655f/32.png) [@bvnagaraju](https://discuss.elastic.co/u/bvnagaraju)\
**Post date:** [June 25, 2015, 10:54pm UTC](https://discuss.elastic.co/t/aggregation-on-fields/24383/1 "2015-06-25T22:54:13Z")

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Hi ,

Is it required to have field stored too run the aggregation/facets ?

Regards,  
Nagaraju

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**Author:** ![Ivan](https://avatars.discourse-cdn.com/v4/letter/i/df788c/32.png) [@Ivan](https://discuss.elastic.co/u/Ivan)\
**Post date:** [June 26, 2015, 2:33am UTC](https://discuss.elastic.co/t/aggregation-on-fields/24383/2 "2015-06-26T02:33:41Z")

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The field needs to be indexed. Does not need to be stored.

Cheers,

Ivan

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**Author:** ![bvnagaraju](https://avatars.discourse-cdn.com/v4/letter/b/ed655f/32.png) [@bvnagaraju](https://discuss.elastic.co/u/bvnagaraju)\
**Post date:** [June 26, 2015, 2:37am UTC](https://discuss.elastic.co/t/aggregation-on-fields/24383/3 "2015-06-26T02:37:31Z")

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hi ,

am aggregating on field called "FileName" but am getting the aggregated buckets form the field values from other fields .  
Not sure what am doing

Regards,  
Nagaraju

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**Author:** ![dantuff](https://avatars.discourse-cdn.com/v4/letter/d/e79b87/32.png) [@dantuff](https://discuss.elastic.co/u/dantuff)\
**Post date:** [June 26, 2015, 6:32am UTC](https://discuss.elastic.co/t/aggregation-on-fields/24383/4 "2015-06-26T06:32:35Z")

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Is it possible to show your mapping and query?

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**Author:** ![bvnagaraju](https://avatars.discourse-cdn.com/v4/letter/b/ed655f/32.png) [@bvnagaraju](https://discuss.elastic.co/u/bvnagaraju)\
**Post date:** [June 26, 2015, 12:35pm UTC](https://discuss.elastic.co/t/aggregation-on-fields/24383/5 "2015-06-26T12:35:39Z")

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Thanks Dan , I figured it out and was giving the same index\_name for all the fields

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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:** [July 6, 2017, 12:05am UTC](https://discuss.elastic.co/t/aggregation-on-fields/24383/6 "2017-07-06T00:05:11Z")

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