# Nested Filter & Nested Aggregation don't work together

**URL:** <https://discuss.elastic.co/t/nested-filter-nested-aggregation-dont-work-together/23368>\
**Category:** Elasticsearch\
**Created:** [April 22, 2015, 8:07pm UTC](https://discuss.elastic.co/t/nested-filter-nested-aggregation-dont-work-together/23368 "2015-04-22T20:07:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![BradVido](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bradvido/32/741_2.png) [@BradVido](https://discuss.elastic.co/u/BradVido)\
**Post date:** [April 22, 2015, 8:07pm UTC](https://discuss.elastic.co/t/nested-filter-nested-aggregation-dont-work-together/23368/1 "2015-04-22T20:07:13Z")

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Am I misunderstanding the Nested Filter? I expected it to exclude any  
nested objects that didn't match it (and subsequently not match them in any  
nested aggregations for the same path).

Example:  
I have a field "foo" with a mapping type of "nested".

I execute a mach-all query with a Nested Terms Filter where the field  
"foo.bar" is "value1".  
I also add a Nested terms aggregation on for the same field.

The problem is that the aggregation returns things other than "value1"!  
It will return "value2" if other nested objects in the same document had  
foo.bar=value1.

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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:** [July 6, 2017, 12:18am UTC](https://discuss.elastic.co/t/nested-filter-nested-aggregation-dont-work-together/23368/2 "2017-07-06T00:18:12Z")

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