# How to create finger print ingest pipeline for nested field?

**URL:** https://discuss.elastic.co/t/how-to-create-finger-print-ingest-pipeline-for-nested-field/343845
**Category:** Elasticsearch
**Created:** [September 26, 2023, 8:21am UTC](https://discuss.elastic.co/t/how-to-create-finger-print-ingest-pipeline-for-nested-field/343845 "2023-09-26T08:21:57Z")
**Posts on this page:** 4
**Page:** 1

<div class="post-metadata">

### Author: ![mhsankar](https://avatars.discourse-cdn.com/v4/letter/m/bbe5ce/32.png) [@mhsankar](https://discuss.elastic.co/u/mhsankar)
#### Post date: [September 26, 2023, 8:21am UTC](https://discuss.elastic.co/t/how-to-create-finger-print-ingest-pipeline-for-nested-field/343845/1 "2023-09-26T08:21:57Z")

</div>

Hi every body.  
I have a mapping with nested field.  
I want to identify a **finger print** for every rows in nested field .  
how can create this ingest pipeline?  
I`m using Elasticsearch v 7.17.7

my mapping:

```auto
PUT test-nested-fingerprint
{
  "mappings": {
    "properties": {
      "message_id":{
        "type": "keyword"
      },
      "message":{
        "type": "text"
      },
      "comments":{
        "type": "nested",
        "properties": {
          "comment_message":{
            "type":"keyword"
          },
          "comment_date":{
            "type":"date"
          },
          "comment_user_id":{
            "type":"keyword"
          },
          "comment_id":{
            "type":"keyword"
          }
        }
      }
    }
  }
}

```

---

<div class="post-metadata">

### Author: ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [September 26, 2023, 11:08am UTC](https://discuss.elastic.co/t/how-to-create-finger-print-ingest-pipeline-for-nested-field/343845/2 "2023-09-26T11:08:54Z")

</div>

Would that help?

> **[Foreach processor | Elasticsearch Guide \[8.10\] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/current/foreach-processor.html)**

---

<div class="post-metadata">

### Author: ![mhsankar](https://avatars.discourse-cdn.com/v4/letter/m/bbe5ce/32.png) [@mhsankar](https://discuss.elastic.co/u/mhsankar)
#### Post date: [September 27, 2023, 9:23am UTC](https://discuss.elastic.co/t/how-to-create-finger-print-ingest-pipeline-for-nested-field/343845/3 "2023-09-27T09:23:58Z")

</div>

thanks @dadoonet . its work .

---

<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: [October 25, 2023, 9:24am UTC](https://discuss.elastic.co/t/how-to-create-finger-print-ingest-pipeline-for-nested-field/343845/4 "2023-10-25T09:24:45Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.