# Elasticsearch prefix query case insensitive using java API

**URL:** <https://discuss.elastic.co/t/elasticsearch-prefix-query-case-insensitive-using-java-api/19867>\
**Category:** Elasticsearch\
**Created:** [September 18, 2014, 1:07pm UTC](https://discuss.elastic.co/t/elasticsearch-prefix-query-case-insensitive-using-java-api/19867 "2014-09-18T13:07:08Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Suhail\_Mehgal](https://avatars.discourse-cdn.com/v4/letter/s/a6a055/32.png) [@Suhail\_Mehgal](https://discuss.elastic.co/u/Suhail_Mehgal)\
**Post date:** [September 18, 2014, 1:07pm UTC](https://discuss.elastic.co/t/elasticsearch-prefix-query-case-insensitive-using-java-api/19867/1 "2014-09-18T13:07:08Z")

</div>

I wrote a method to search prefix:  
its working for case sensitive. How i can achieve case insensitive prefix method?

public static SearchResponse search(String indexName,String indexType,String key,String value , Client client) {

```
    QueryFilterBuilder qb = FilterBuilders.queryFilter(QueryBuilders.prefixQuery(key, value));  
    return client.prepareSearch(indexName)
            .setTypes(indexType)
            .setSearchType(SearchType.DFS_QUERY_AND_FETCH)
            .setQuery(QueryBuilders.filteredQuery(QueryBuilders.prefixQuery(key, value), qb)).execute()
            .actionGet();
}
```

---

<div class="post-metadata">

**Author:** ![fabioebner](https://avatars.discourse-cdn.com/v4/letter/f/a3d4f5/32.png) [@fabioebner](https://discuss.elastic.co/u/fabioebner)\
**Post date:** [July 29, 2015, 9:31pm UTC](https://discuss.elastic.co/t/elasticsearch-prefix-query-case-insensitive-using-java-api/19867/2 "2015-07-29T21:31:30Z")

</div>

can u resolve this?? how?? tks

---

<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:** [July 5, 2017, 11:58pm UTC](https://discuss.elastic.co/t/elasticsearch-prefix-query-case-insensitive-using-java-api/19867/3 "2017-07-05T23:58:15Z")

</div>