# Case\_insensitive not working on wildcard field type with cyrilic data

**URL:** https://discuss.elastic.co/t/case-insensitive-not-working-on-wildcard-field-type-with-cyrilic-data/326839
**Category:** Elasticsearch
**Created:** [March 2, 2023, 11:38am UTC](https://discuss.elastic.co/t/case-insensitive-not-working-on-wildcard-field-type-with-cyrilic-data/326839 "2023-03-02T11:38:03Z")
**Posts on this page:** 5
**Page:** 1

<div class="post-metadata">

### Author: ![irfan94](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/irfan94/32/117952_2.png) [@irfan94](https://discuss.elastic.co/u/irfan94)
#### Post date: [March 2, 2023, 11:38am UTC](https://discuss.elastic.co/t/case-insensitive-not-working-on-wildcard-field-type-with-cyrilic-data/326839/1 "2023-03-02T11:38:03Z")

</div>

Hello,

When you have an index with field that its type is wildcard and its filled with Cyrillic data and then when you perform wildcard query with **case\_insensitive: true** , no documents are found.

Note: we are currently using version 7.17.8

Test example:

```auto
PUT /index
{
  "mappings": {
    "properties": {
      "name": {
        "type": "wildcard"
      }
    }
  }
}

POST /index/_doc/1
{
  "name": "ТЕСТ"
}

POST /index/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "wildcard": {
            "name": {
              "value": "*Тест*",
              "case_insensitive": true
            }
          }
        }
      ]
    }
  }
}

```

I tried to search for a fix but could not find anything. Is there anything that can help us solve this issue?

NOTE: Index data and query data are all the Cyrillic characters.

Cyrilic:

ТЕСТ - `0xd0a2d095d0a1d0a2`  
Тест - `0xd0a2d0b5d181d182`

While latin would be:

TECT - `0x54454354`  
Tect - `0x54656374`

---

<div class="post-metadata">

### Author: ![Mark\_Harwood1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mark_harwood1/32/101255_2.png) [@Mark\_Harwood1](https://discuss.elastic.co/u/Mark_Harwood1)
#### Post date: [March 3, 2023, 7:49am UTC](https://discuss.elastic.co/t/case-insensitive-not-working-on-wildcard-field-type-with-cyrilic-data/326839/2 "2023-03-03T07:49:23Z")

</div>

Hi Irfan,  
Adding case insensitivity for all languages/scripts is a big prospect which is why the functionality is limited to the ASCII set of characters for now. See docs [here](https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-term-query.html#term-field-params)

---

<div class="post-metadata">

### Author: ![irfan94](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/irfan94/32/117952_2.png) [@irfan94](https://discuss.elastic.co/u/irfan94)
#### Post date: [March 27, 2023, 8:09am UTC](https://discuss.elastic.co/t/case-insensitive-not-working-on-wildcard-field-type-with-cyrilic-data/326839/3 "2023-03-27T08:09:21Z")

</div>

Hey @Mark_Harwood1, thanks for the response.  
Do you know when Elastic is planing to expand support to other characters?

---

<div class="post-metadata">

### Author: ![Mark\_Harwood1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mark_harwood1/32/101255_2.png) [@Mark\_Harwood1](https://discuss.elastic.co/u/Mark_Harwood1)
#### Post date: [March 27, 2023, 6:27pm UTC](https://discuss.elastic.co/t/case-insensitive-not-working-on-wildcard-field-type-with-cyrilic-data/326839/4 "2023-03-27T18:27:12Z")

</div>

No, sorry

---

<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: [April 24, 2023, 6:27pm UTC](https://discuss.elastic.co/t/case-insensitive-not-working-on-wildcard-field-type-with-cyrilic-data/326839/5 "2023-04-24T18:27:52Z")

</div>

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