# Aggregation issue when used with Children?

**URL:** <https://discuss.elastic.co/t/aggregation-issue-when-used-with-children/42778>\
**Category:** Elasticsearch\
**Created:** [February 25, 2016, 9:13pm UTC](https://discuss.elastic.co/t/aggregation-issue-when-used-with-children/42778 "2016-02-25T21:13:19Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![cmk1523](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/cmk1523/32/6474_2.png) [@cmk1523](https://discuss.elastic.co/u/cmk1523)\
**Post date:** [February 25, 2016, 9:13pm UTC](https://discuss.elastic.co/t/aggregation-issue-when-used-with-children/42778/1 "2016-02-25T21:13:19Z")

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I have parent child model and when using the "terms" children aggregation, i cannot set the size of that aggregation greater than 10. 1-10 will work, but not any more. I haven't tried 0 do to possible performance issues.

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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 5, 2017, 11:13pm UTC](https://discuss.elastic.co/t/aggregation-issue-when-used-with-children/42778/2 "2017-07-05T23:13:34Z")

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Closed on July 5, 2017, 11:13pm UTC