# Is it possible to join field via conditions?

**URL:** <https://discuss.elastic.co/t/is-it-possible-to-join-field-via-conditions/313952>\
**Category:** Elasticsearch\
**Created:** [September 8, 2022, 6:50am UTC](https://discuss.elastic.co/t/is-it-possible-to-join-field-via-conditions/313952 "2022-09-08T06:50:48Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![Stanislau\_Karaliou](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/stanislau_karaliou/32/110635_2.png) [@Stanislau\_Karaliou](https://discuss.elastic.co/u/Stanislau_Karaliou)\
**Post date:** [September 8, 2022, 6:50am UTC](https://discuss.elastic.co/t/is-it-possible-to-join-field-via-conditions/313952/1 "2022-09-08T06:50:48Z")

</div>

I have structure

```auto
{
  id: 1
  name: "Root folder"
  parent_id: 0,
  inherit_folder_id: null,
  inherit_permission: false,
  permissions: [some permissions]
}, {
  id: 2
  name: "Accounts"
  parent_id: 1,
  inherit_folder_id: 1,
  inherit_permission: true,
  permissions: [some permissions]
}, {
  id: 3
  name: "Finance"
  parent_id: 2,
  inherit_folder_id: 1,
  inherit_permission: true,
  permissions: [some permissions]
}

```

So, In this case I need to check if **inherit\_permission = true** join by field **inherit\_folder\_id**. In this case for folder **Finance** I need join **Root folder** and check permissions of this folder for folder **Finance**

---

<div class="post-metadata">

**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [September 8, 2022, 6:57am UTC](https://discuss.elastic.co/t/is-it-possible-to-join-field-via-conditions/313952/2 "2022-09-08T06:57:32Z")

</div>

Welcome to our community! 😃

Elasticsearch cannot do this, you need to do it externally.

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<div class="post-metadata">

**Author:** ![Stanislau\_Karaliou](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/stanislau_karaliou/32/110635_2.png) [@Stanislau\_Karaliou](https://discuss.elastic.co/u/Stanislau_Karaliou)\
**Post date:** [September 8, 2022, 7:23am UTC](https://discuss.elastic.co/t/is-it-possible-to-join-field-via-conditions/313952/3 "2022-09-08T07:23:28Z")

</div>

Does it means I don't need use Elasticsearch at all? Because Any folders may have sub sub sub .... folders. Some of them have more than 15.  
For that as I understand I need update all childs after every update

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<div class="post-metadata">

**Author:** ![RabBit\_BR](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rabbit_br/32/82261_2.png) [@RabBit\_BR](https://discuss.elastic.co/u/RabBit_BR)\
**Post date:** [September 8, 2022, 12:07pm UTC](https://discuss.elastic.co/t/is-it-possible-to-join-field-via-conditions/313952/4 "2022-09-08T12:07:36Z")

</div>

Hi @Stanislau_Karaliou .

Analyzing your scenario I think the [Path hierarchy](https://www.elastic.co/guide/en/elasticsearch/reference/current/analysis-pathhierarchy-tokenizer.html) would adapt well. I would try to use it.

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<div class="post-metadata">

**Author:** ![Stanislau\_Karaliou](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/stanislau_karaliou/32/110635_2.png) [@Stanislau\_Karaliou](https://discuss.elastic.co/u/Stanislau_Karaliou)\
**Post date:** [September 8, 2022, 12:26pm UTC](https://discuss.elastic.co/t/is-it-possible-to-join-field-via-conditions/313952/5 "2022-09-08T12:26:59Z")

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@RabBit_BR how can it helps me? It's about tokenizer, but I need get different index permissions.  
Maybe I missunderstand something

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<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 6, 2022, 12:27pm UTC](https://discuss.elastic.co/t/is-it-possible-to-join-field-via-conditions/313952/6 "2022-10-06T12:27:26Z")

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