# How to Find the size of nested field/ array?
**URL:** https://discuss.elastic.co/t/how-to-find-the-size-of-nested-field-array/178734
**Category:** Elasticsearch
**Created:** [April 27, 2019, 2:57am UTC](https://discuss.elastic.co/t/how-to-find-the-size-of-nested-field-array/178734 "2019-04-27T02:57:04Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@rssapra7](https://discuss.elastic.co/u/rssapra7)
#### Post date: [April 27, 2019, 2:57am UTC](https://discuss.elastic.co/t/how-to-find-the-size-of-nested-field-array/178734/1 "2019-04-27T02:57:04Z")
Structure looks like this :
> {
> "heads": {
> "mappings": {
> "head": {
> "dynamic": "false",
> "properties": {
> "nestedField1": {
> "type": "nested",
> "properties": {
> "nestedField2": {
> "type": "nested",
> "properties": {
> "field1": {
> "type": "keyword"
> },
> "field2": {
> "type": "keyword"
> }
> }
> },
> "field3": {
> "type": "keyword"
> },
> "field4": {
> "type": "keyword"
> },
> "field5": {
> "type": "keyword"
> }
> }
> }
> }
> }
> }
> }
> }
> What I want is to filter by the size of nestedField2...
Please share the exact query, if possible.
Thanks in advance!
---
### Author:  [@Bill\_McConaghy](https://discuss.elastic.co/u/Bill_McConaghy)
#### Post date: [April 29, 2019, 12:48pm UTC](https://discuss.elastic.co/t/how-to-find-the-size-of-nested-field-array/178734/2 "2019-04-29T12:48:03Z")
Moved this to the Elasticsearch forum so you will get a better answer.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [May 27, 2019, 12:48pm UTC](https://discuss.elastic.co/t/how-to-find-the-size-of-nested-field-array/178734/3 "2019-05-27T12:48:04Z")
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