# Add nested document from another index
**URL:** https://discuss.elastic.co/t/add-nested-document-from-another-index/120744
**Category:** Logstash
**Created:** [February 21, 2018, 12:14am UTC](https://discuss.elastic.co/t/add-nested-document-from-another-index/120744 "2018-02-21T00:14:57Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Baljeet\_Dogra](https://discuss.elastic.co/u/Baljeet_Dogra)
#### Post date: [February 21, 2018, 12:14am UTC](https://discuss.elastic.co/t/add-nested-document-from-another-index/120744/1 "2018-02-21T00:14:57Z")
I have a requirement to lookup another index in elasticsearch and when the document is found I need to embed the entire document in another document in another index.
employee-index (assume already populated)
{ \_id: emp01, name: David, role: admin}
{ \_id: emp02, name: John, role: developer, country: USA}
{ \_id: emp03, name: Manoj, role: marketing, type: external}
salary-index
salary data has employee id
$10000, emp01
$14000, emp02
$17000, emp03
When inserting salary data I need to lookup employee index using the id which I can do using the elasticsearch plugin. But how do I fetch the entire document and nest it in the salary document without having to fetch individual fields. I do not want to use fields because the document schema may be different.
Intended document in salary index where employee is nested type
{
\_id: 1,
salary: $10000,
employee : { \_id: emp01, name: David, role: admin}
}
{
\_id: 2,
salary: $14000,
employee : { \_id: emp02, name: John, role: developer, country: USA }
}
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [March 21, 2018, 12:15am UTC](https://discuss.elastic.co/t/add-nested-document-from-another-index/120744/2 "2018-03-21T00:15:05Z")
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