# Retrieving \_id of matched children

**URL:** https://discuss.elastic.co/t/retrieving--id-of-matched-children/6944
**Category:** Elasticsearch
**Created:** [March 8, 2012, 8:56am UTC](https://discuss.elastic.co/t/retrieving--id-of-matched-children/6944 "2012-03-08T08:56:00Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![vineeth\_mohan](https://avatars.discourse-cdn.com/v4/letter/v/bc79bd/32.png) [@vineeth\_mohan](https://discuss.elastic.co/u/vineeth_mohan)
#### Post date: [March 8, 2012, 8:56am UTC](https://discuss.elastic.co/t/retrieving--id-of-matched-children/6944/1 "2012-03-08T08:56:00Z")

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Hi ,

I read it in one of Shay's thread that \_id of all children type are loaded  
into memory.  
So is it possible to retrieve matched children per parent ID in the result  
without any additional memory ?

Thanks  
Vineeth

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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, 3:36am UTC](https://discuss.elastic.co/t/retrieving--id-of-matched-children/6944/2 "2017-07-06T03:36:42Z")

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