# Query\_string case insensitive search on keyword field

**URL:** https://discuss.elastic.co/t/query-string-case-insensitive-search-on-keyword-field/154819
**Category:** Elasticsearch
**Created:** [October 31, 2018, 11:00am UTC](https://discuss.elastic.co/t/query-string-case-insensitive-search-on-keyword-field/154819 "2018-10-31T11:00:33Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Mahesh\_Reddy1](https://avatars.discourse-cdn.com/v4/letter/m/ed655f/32.png) [@Mahesh\_Reddy1](https://discuss.elastic.co/u/Mahesh_Reddy1)
#### Post date: [October 31, 2018, 11:00am UTC](https://discuss.elastic.co/t/query-string-case-insensitive-search-on-keyword-field/154819/1 "2018-10-31T11:00:33Z")

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I have a Keyword field that don't have any analyzers. I want to use query\_string query to do a case insensitive search on that field.

"name":"Mary Johnosn" is indexed into elastic and name is a keyword field. I am using query\_string query with query attribute as "query":"(_mar_)" so that it has to check and return the names containing mar at any position and want to do case insentive search.

I am using query\_String because I want to search on multiple fileds and use "query":"(_mar_)".

Can we do something during query\_string to match keyword field in case insensitive way?

I want to do the same case insensitive search by using fields attribute in query\_string query. Please suggest

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### Author: ![polyfractal](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/polyfractal/32/48162_2.png) [@polyfractal](https://discuss.elastic.co/u/polyfractal)
#### Post date: [October 31, 2018, 7:04pm UTC](https://discuss.elastic.co/t/query-string-case-insensitive-search-on-keyword-field/154819/2 "2018-10-31T19:04:24Z")

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You can define `normalizer`s for keyword fields: [https://www.elastic.co/guide/en/elasticsearch/reference/current/normalizer.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/normalizer.html)

These are sorta like analyzers and allow you to apply some operations to the keyword like lowercasing.

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### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [November 28, 2018, 7:10pm UTC](https://discuss.elastic.co/t/query-string-case-insensitive-search-on-keyword-field/154819/3 "2018-11-28T19:10:26Z")

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