# Case sensitivity in ES

**URL:** <https://discuss.elastic.co/t/case-sensitivity-in-es/7918>\
**Category:** Elasticsearch\
**Created:** [May 30, 2012, 6:12pm UTC](https://discuss.elastic.co/t/case-sensitivity-in-es/7918 "2012-05-30T18:12:59Z")\
**Posts on this page:** 12\
**Page:** 1

<div class="post-metadata">

**Author:** ![Kara](https://avatars.discourse-cdn.com/v4/letter/k/e480ec/32.png) [@Kara](https://discuss.elastic.co/u/Kara)\
**Post date:** [May 30, 2012, 6:12pm UTC](https://discuss.elastic.co/t/case-sensitivity-in-es/7918/1 "2012-05-30T18:12:59Z")

</div>

Can someone refer me to a good documentation where it shows how to  
enable the ES case sensitivity. I need to integrate it with my Java  
client where I only issue queries.

Thanks,  
Karine

---

<div class="post-metadata">

**Author:** ![Ivan](https://avatars.discourse-cdn.com/v4/letter/i/df788c/32.png) [@Ivan](https://discuss.elastic.co/u/Ivan)\
**Post date:** [May 30, 2012, 6:25pm UTC](https://discuss.elastic.co/t/case-sensitivity-in-es/7918/2 "2012-05-30T18:25:30Z")

</div>

Case sensitivity relates to the type of analysis used on a field. If  
you use the standard analyzer, then all the terms are lowercased. Make  
sure you are using the same analyzer for both indexing and querying.  
If you lowercase during indexing, but not during querying, then you  
will have a mismatch.

The standard, stop and simple analyzers lowercase terms. The  
whitespace and keyword analyzers do not. All these principals derive  
from Lucene, so you can look up in Lucene how  
analyzers/tokenizers/filters work.

Cheers,

Ivan

On Wed, May 30, 2012 at 11:12 AM, Kara [karine.marabyan@aero.org](mailto:karine.marabyan@aero.org) wrote:

> Can someone refer me to a good documentation where it shows how to  
> enable the ES case sensitivity. I need to integrate it with my Java  
> client where I only issue queries.
> 
> Thanks,  
> Karine

---

<div class="post-metadata">

**Author:** ![Kara](https://avatars.discourse-cdn.com/v4/letter/k/e480ec/32.png) [@Kara](https://discuss.elastic.co/u/Kara)\
**Post date:** [May 30, 2012, 10:41pm UTC](https://discuss.elastic.co/t/case-sensitivity-in-es/7918/3 "2012-05-30T22:41:48Z")

</div>

I used the default ES settings and it is the lowercased. I would like  
it be able to search for both case sensitive and insensitive. How can  
I configure ES to do that?

Thanks,  
Karine

On May 30, 11:25 am, Ivan Brusic [i...@brusic.com](mailto:i...@brusic.com) wrote:

> Case sensitivity relates to the type of analysis used on a field. If  
> you use the standard analyzer, then all the terms are lowercased. Make  
> sure you are using the same analyzer for both indexing and querying.  
> If you lowercase during indexing, but not during querying, then you  
> will have a mismatch.
> 
> The standard, stop and simple analyzers lowercase terms. The  
> whitespace and keyword analyzers do not. All these principals derive  
> from Lucene, so you can look up in Lucene how  
> analyzers/tokenizers/filters work.
> 
> Cheers,
> 
> Ivan
> 
> On Wed, May 30, 2012 at 11:12 AM, Kara [karine.marab...@aero.org](mailto:karine.marab...@aero.org) wrote:
> 
> > Can someone refer me to a good documentation where it shows how to  
> > enable the ES case sensitivity. I need to integrate it with my Java  
> > client where I only issue queries.
> 
> > Thanks,  
> > Karine

---

<div class="post-metadata">

**Author:** ![Kara](https://avatars.discourse-cdn.com/v4/letter/k/e480ec/32.png) [@Kara](https://discuss.elastic.co/u/Kara)\
**Post date:** [May 31, 2012, 1:45am UTC](https://discuss.elastic.co/t/case-sensitivity-in-es/7918/4 "2012-05-31T01:45:08Z")

</div>

I am sorry - the query is case insensitive. It ignores the case. I  
would like to have case sensitive queries too. The user interface has  
the option to check or uncheck the checkbox to ignore the case. Here  
is the code I have now:

SearchRequestBuilder builder = client.prepareSearch("mongoindex");  
QueryStringQueryBuilder qb = QueryBuilders.queryString("bag\*");  
builder.setQuery(qb);  
SearchResponse response = builder.execute().actionGet();  
SearchHit docs = response.getHits().getHits();  
System.out.println("size is " + docs.length);  
client.close();

On May 30, 3:41 pm, Kara [karine.marab...@aero.org](mailto:karine.marab...@aero.org) wrote:

> I used the default ES settings and it is the lowercased. I would like  
> it be able to search for both case sensitive and insensitive. How can  
> I configure ES to do that?
> 
> Thanks,  
> Karine
> 
> On May 30, 11:25 am, Ivan Brusic [i...@brusic.com](mailto:i...@brusic.com) wrote:
> 
> > Case sensitivity relates to the type of analysis used on a field. If  
> > you use the standard analyzer, then all the terms are lowercased. Make  
> > sure you are using the same analyzer for both indexing and querying.  
> > If you lowercase during indexing, but not during querying, then you  
> > will have a mismatch.
> 
> > The standard, stop and simple analyzers lowercase terms. The  
> > whitespace and keyword analyzers do not. All these principals derive  
> > from Lucene, so you can look up in Lucene how  
> > analyzers/tokenizers/filters work.
> 
> > Cheers,
> 
> > Ivan
> 
> > On Wed, May 30, 2012 at 11:12 AM, Kara [karine.marab...@aero.org](mailto:karine.marab...@aero.org) wrote:
> > 
> > > Can someone refer me to a good documentation where it shows how to  
> > > enable the ES case sensitivity. I need to integrate it with my Java  
> > > client where I only issue queries.
> 
> > > Thanks,  
> > > Karine

---

<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:** [May 31, 2012, 5:01am UTC](https://discuss.elastic.co/t/case-sensitivity-in-es/7918/5 "2012-05-31T05:01:54Z")

</div>

You can use different mappings for each field, using multifield : [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/mapping/multi-field-type.html)

But, even if I don't really understand your need, I think I will create two index.  
The first contains all docs with standard mapping. The other one with case sensitive mapping.

Just because, if you have many fields for each doc, using multifield for all would be a bit long to setup.

HTH  
David

Le 31 mai 2012 à 03:45, Kara [karine.marabyan@aero.org](mailto:karine.marabyan@aero.org) a écrit :

> I am sorry - the query is case insensitive. It ignores the case. I  
> would like to have case sensitive queries too. The user interface has  
> the option to check or uncheck the checkbox to ignore the case. Here  
> is the code I have now:
> 
> SearchRequestBuilder builder = client.prepareSearch("mongoindex");  
> QueryStringQueryBuilder qb = QueryBuilders.queryString("bag\*");  
> builder.setQuery(qb);  
> SearchResponse response = builder.execute().actionGet();  
> SearchHit docs = response.getHits().getHits();  
> System.out.println("size is " + docs.length);  
> client.close();
> 
> On May 30, 3:41 pm, Kara [karine.marab...@aero.org](mailto:karine.marab...@aero.org) wrote:
> 
> > I used the default ES settings and it is the lowercased. I would like  
> > it be able to search for both case sensitive and insensitive. How can  
> > I configure ES to do that?
> > 
> > Thanks,  
> > Karine
> > 
> > On May 30, 11:25 am, Ivan Brusic [i...@brusic.com](mailto:i...@brusic.com) wrote:
> > 
> > > Case sensitivity relates to the type of analysis used on a field. If  
> > > you use the standard analyzer, then all the terms are lowercased. Make  
> > > sure you are using the same analyzer for both indexing and querying.  
> > > If you lowercase during indexing, but not during querying, then you  
> > > will have a mismatch.
> > 
> > > The standard, stop and simple analyzers lowercase terms. The  
> > > whitespace and keyword analyzers do not. All these principals derive  
> > > from Lucene, so you can look up in Lucene how  
> > > analyzers/tokenizers/filters work.
> > 
> > > Cheers,
> > 
> > > Ivan
> > 
> > > On Wed, May 30, 2012 at 11:12 AM, Kara [karine.marab...@aero.org](mailto:karine.marab...@aero.org) wrote:
> > > 
> > > > Can someone refer me to a good documentation where it shows how to  
> > > > enable the ES case sensitivity. I need to integrate it with my Java  
> > > > client where I only issue queries.
> > 
> > > > Thanks,  
> > > > Karine

---

<div class="post-metadata">

**Author:** ![Kara](https://avatars.discourse-cdn.com/v4/letter/k/e480ec/32.png) [@Kara](https://discuss.elastic.co/u/Kara)\
**Post date:** [May 31, 2012, 2:55pm UTC](https://discuss.elastic.co/t/case-sensitivity-in-es/7918/6 "2012-05-31T14:55:18Z")

</div>

Thanks David!

How can I create case sensitive mapping? Is it the elasticsearch.yml  
that needs to be configured for it?

On May 30, 10:01 pm, David Pilato [da...@pilato.fr](mailto:da...@pilato.fr) wrote:

> You can use different mappings for each field, using multifield :[Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/mapping/multi-field-type)...
> 
> But, even if I don't really understand your need, I think I will create two index.  
> The first contains all docs with standard mapping. The other one with case sensitive mapping.
> 
> Just because, if you have many fields for each doc, using multifield for all would be a bit long to setup.
> 
> HTH  
> David
> 
> Le 31 mai 2012 à 03:45, Kara [karine.marab...@aero.org](mailto:karine.marab...@aero.org) a écrit :
> 
> > I am sorry - the query is case insensitive. It ignores the case. I  
> > would like to have case sensitive queries too. The user interface has  
> > the option to check or uncheck the checkbox to ignore the case. Here  
> > is the code I have now:
> 
> > SearchRequestBuilder builder = client.prepareSearch("mongoindex");  
> > QueryStringQueryBuilder qb = QueryBuilders.queryString("bag\*");  
> > builder.setQuery(qb);  
> > SearchResponse response = builder.execute().actionGet();  
> > SearchHit docs = response.getHits().getHits();  
> > System.out.println("size is " + docs.length);  
> > client.close();
> 
> > On May 30, 3:41 pm, Kara [karine.marab...@aero.org](mailto:karine.marab...@aero.org) wrote:
> > 
> > > I used the default ES settings and it is the lowercased. I would like  
> > > it be able to search for both case sensitive and insensitive. How can  
> > > I configure ES to do that?
> 
> > > Thanks,  
> > > Karine
> 
> > > On May 30, 11:25 am, Ivan Brusic [i...@brusic.com](mailto:i...@brusic.com) wrote:
> 
> > > > Case sensitivity relates to the type of analysis used on a field. If  
> > > > you use the standard analyzer, then all the terms are lowercased. Make  
> > > > sure you are using the same analyzer for both indexing and querying.  
> > > > If you lowercase during indexing, but not during querying, then you  
> > > > will have a mismatch.
> 
> > > > The standard, stop and simple analyzers lowercase terms. The  
> > > > whitespace and keyword analyzers do not. All these principals derive  
> > > > from Lucene, so you can look up in Lucene how  
> > > > analyzers/tokenizers/filters work.
> 
> > > > Cheers,
> 
> > > > Ivan
> 
> > > > On Wed, May 30, 2012 at 11:12 AM, Kara [karine.marab...@aero.org](mailto:karine.marab...@aero.org) wrote:
> > > > 
> > > > > Can someone refer me to a good documentation where it shows how to  
> > > > > enable the ES case sensitivity. I need to integrate it with my Java  
> > > > > client where I only issue queries.
> 
> > > > > Thanks,  
> > > > > Karine

---

<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:** [May 31, 2012, 8:15pm UTC](https://discuss.elastic.co/t/case-sensitivity-in-es/7918/7 "2012-05-31T20:15:28Z")

</div>

Let's say that you want to define a case insensitive for twitter users:  
$ curl -XPUT [http://localhost:9200/twitter/user/\_mapping](http://localhost:9200/twitter/user/_mapping) -d '{  
"user" : {  
"properties" : {  
"name" : { "type" : "string" }  
}  
}  
}'

And now, you want to create the sensitive index:  
$ curl -XPOST localhost:9200/twitter\_ins -d '{  
"analysis" : {  
"analyzer" : {  
"case\_sensitive" : {  
"type" : "custom",  
"tokenizer" : "keyword"  
}  
}  
},  
"mappings" : {  
"user" : {  
"properties" : {  
"name" : { "type" : "string", "analyzer" : "case\_sensitive"  
}  
}  
}  
}  
}'

I didn't test it but I think that it should work.

If you want to have only one index and use multifield:  
$ curl -XPOST localhost:9200/twitter\_ins -d '{  
"analysis" : {  
"analyzer" : {  
"case\_sensitive" : {  
"type" : "custom",  
"tokenizer" : "keyword"  
}  
}  
}  
}'

$ curl -XPUT [http://localhost:9200/twitter/user/\_mapping](http://localhost:9200/twitter/user/_mapping) -d '{  
"user" : {  
"properties" : {  
"name" : {  
"type" : "multi\_field",  
"fields" : {  
"name" : {"type" : "string" },  
"sensitive" : {"type" : "string", "analyzer" :  
"case\_sensitive" }  
}  
}  
}  
}  
}'

Then, you will have to search in field name or in field name.sensitive

See here :

> **[Elasticsearch Platform — Find real-time answers at scale](https://www.elastic.co)**
>
> Power insights and outcomes with the Elasticsearch Platform and AI. See into your data and find answers that matter with enterprise solutions designed to help you build, observe, and protect. Try Elasticsearch free today.

HTH  
David

> -----Message d'origine-----  
> De : [elasticsearch@googlegroups.com](mailto:elasticsearch@googlegroups.com)  
> [[mailto:elasticsearch@googlegroups.com](mailto:elasticsearch@googlegroups.com)] De la part de Kara  
> Envoyé : jeudi 31 mai 2012 16:55  
> À : elasticsearch  
> Objet : Re: case sensitivity in ES
> 
> Thanks David!
> 
> How can I create case sensitive mapping? Is it the elasticsearch.yml  
> that needs to be configured for it?
> 
> On May 30, 10:01 pm, David Pilato [da...@pilato.fr](mailto:da...@pilato.fr) wrote:
> 
> > You can use different mappings for each field, using multifield  
> > :[Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/mapping/multi-field-)  
> > type...
> > 
> > But, even if I don't really understand your need, I think I will  
> > create two index.  
> > The first contains all docs with standard mapping. The other one with  
> > case sensitive mapping.
> > 
> > Just because, if you have many fields for each doc, using multifield  
> > for all would be a bit long to setup.
> > 
> > HTH  
> > David
> > 
> > Le 31 mai 2012 à 03:45, Kara [karine.marab...@aero.org](mailto:karine.marab...@aero.org) a écrit :
> > 
> > > I am sorry - the query is case insensitive. It ignores the case. I  
> > > would like to have case sensitive queries too. The user interface  
> > > has the option to check or uncheck the checkbox to ignore the case.  
> > > Here is the code I have now:
> > 
> > > SearchRequestBuilder builder = client.prepareSearch("mongoindex");  
> > > QueryStringQueryBuilder qb =  
> > > QueryBuilders.queryString("bag\*");  
> > > builder.setQuery(qb);  
> > > SearchResponse response = builder.execute().actionGet();  
> > > SearchHit docs = response.getHits().getHits();  
> > > System.out.println("size is " + docs.length);  
> > > client.close();
> > 
> > > On May 30, 3:41 pm, Kara [karine.marab...@aero.org](mailto:karine.marab...@aero.org) wrote:
> > > 
> > > > I used the default ES settings and it is the lowercased. I would  
> > > > like it be able to search for both case sensitive and insensitive.  
> > > > How can I configure ES to do that?
> > 
> > > > Thanks,  
> > > > Karine
> > 
> > > > On May 30, 11:25 am, Ivan Brusic [i...@brusic.com](mailto:i...@brusic.com) wrote:
> > 
> > > > > Case sensitivity relates to the type of analysis used on a field.  
> > > > > If you use the standard analyzer, then all the terms are  
> > > > > lowercased. Make sure you are using the same analyzer for both  
> > > > > indexing and querying.  
> > > > > If you lowercase during indexing, but not during querying, then  
> > > > > you will have a mismatch.
> > 
> > > > > The standard, stop and simple analyzers lowercase terms. The  
> > > > > whitespace and keyword analyzers do not. All these principals  
> > > > > derive from Lucene, so you can look up in Lucene how  
> > > > > analyzers/tokenizers/filters work.
> > 
> > > > > Cheers,
> > 
> > > > > Ivan
> > 
> > > > > On Wed, May 30, 2012 at 11:12 AM, Kara [karine.marab...@aero.org](mailto:karine.marab...@aero.org)  
> > > > > wrote:
> > > > > 
> > > > > > Can someone refer me to a good documentation where it shows how  
> > > > > > to enable the ES case sensitivity. I need to integrate it with  
> > > > > > my  
> > > > > > Java client where I only issue queries.
> > 
> > > > > > Thanks,  
> > > > > > Karine

---

<div class="post-metadata">

**Author:** ![Ivan](https://avatars.discourse-cdn.com/v4/letter/i/df788c/32.png) [@Ivan](https://discuss.elastic.co/u/Ivan)\
**Post date:** [May 31, 2012, 9:07pm UTC](https://discuss.elastic.co/t/case-sensitivity-in-es/7918/8 "2012-05-31T21:07:05Z")

</div>

David nicely illustrates two different approaches. I personally prefer  
to use the multi-field approach, but everything is us- case dependent.  
But ultimately you cannot use a single field to support both types of  
queries. Either use different indices or different fields.

David used the keyword analyzer to maintain case sensitivity, but  
there are other analyzers such as the WhitespaceAnalyzer that allow do  
not lowercase fields. Use the analysis API to see how each analyzer  
works.

> **[Elasticsearch Platform — Find real-time answers at scale](https://www.elastic.co)**
>
> Power insights and outcomes with the Elasticsearch Platform and AI. See into your data and find answers that matter with enterprise solutions designed to help you build, observe, and protect. Try Elasticsearch free today.

> **[Elasticsearch Platform — Find real-time answers at scale](https://www.elastic.co)**
>
> Power insights and outcomes with the Elasticsearch Platform and AI. See into your data and find answers that matter with enterprise solutions designed to help you build, observe, and protect. Try Elasticsearch free today.

--  
Ivan

On Thu, May 31, 2012 at 1:15 PM, David Pilato [david@pilato.fr](mailto:david@pilato.fr) wrote:

> Let's say that you want to define a case insensitive for twitter users:  
> $ curl -XPUT [http://localhost:9200/twitter/user/\_mapping](http://localhost:9200/twitter/user/_mapping) -d '{  
> "user" : {  
> "properties" : {  
> "name" : { "type" : "string" }  
> }  
> }  
> }'
> 
> And now, you want to create the sensitive index:  
> $ curl -XPOST localhost:9200/twitter\_ins -d '{  
> "analysis" : {  
> "analyzer" : {  
> "case\_sensitive" : {  
> "type" : "custom",  
> "tokenizer" : "keyword"  
> }  
> }  
> },  
> "mappings" : {  
> "user" : {  
> "properties" : {  
> "name" : { "type" : "string", "analyzer" : "case\_sensitive"  
> }  
> }  
> }  
> }  
> }'
> 
> I didn't test it but I think that it should work.
> 
> If you want to have only one index and use multifield:  
> $ curl -XPOST localhost:9200/twitter\_ins -d '{  
> "analysis" : {  
> "analyzer" : {  
> "case\_sensitive" : {  
> "type" : "custom",  
> "tokenizer" : "keyword"  
> }  
> }  
> }  
> }'
> 
> $ curl -XPUT [http://localhost:9200/twitter/user/\_mapping](http://localhost:9200/twitter/user/_mapping) -d '{  
> "user" : {  
> "properties" : {  
> "name" : {  
> "type" : "multi\_field",  
> "fields" : {  
> "name" : {"type" : "string" },  
> "sensitive" : {"type" : "string", "analyzer" :  
> "case\_sensitive" }  
> }  
> }  
> }  
> }  
> }'
> 
> Then, you will have to search in field name or in field name.sensitive
> 
> See here :  
> [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/mapping/multi-field-type.html)
> 
> HTH  
> David
> 
> > -----Message d'origine-----  
> > De : [elasticsearch@googlegroups.com](mailto:elasticsearch@googlegroups.com)  
> > [[mailto:elasticsearch@googlegroups.com](mailto:elasticsearch@googlegroups.com)] De la part de Kara  
> > Envoyé : jeudi 31 mai 2012 16:55  
> > À : elasticsearch  
> > Objet : Re: case sensitivity in ES
> > 
> > Thanks David!
> > 
> > How can I create case sensitive mapping? Is it the elasticsearch.yml  
> > that needs to be configured for it?
> > 
> > On May 30, 10:01 pm, David Pilato [da...@pilato.fr](mailto:da...@pilato.fr) wrote:
> > 
> > > You can use different mappings for each field, using multifield  
> > > :[Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/mapping/multi-field-)  
> > > type...
> > > 
> > > But, even if I don't really understand your need, I think I will  
> > > create two index.  
> > > The first contains all docs with standard mapping. The other one with  
> > > case sensitive mapping.
> > > 
> > > Just because, if you have many fields for each doc, using multifield  
> > > for all would be a bit long to setup.
> > > 
> > > HTH  
> > > David
> > > 
> > > Le 31 mai 2012 à 03:45, Kara [karine.marab...@aero.org](mailto:karine.marab...@aero.org) a écrit :
> > > 
> > > > I am sorry - the query is case insensitive. It ignores the case. I  
> > > > would like to have case sensitive queries too. The user interface  
> > > > has the option to check or uncheck the checkbox to ignore the case.  
> > > > Here is the code I have now:
> > > 
> > > > SearchRequestBuilder builder = client.prepareSearch("mongoindex");  
> > > > QueryStringQueryBuilder qb =  
> > > > QueryBuilders.queryString("bag\*");  
> > > > builder.setQuery(qb);  
> > > > SearchResponse response = builder.execute().actionGet();  
> > > > SearchHit docs = response.getHits().getHits();  
> > > > System.out.println("size is " + docs.length);  
> > > > client.close();
> > > 
> > > > On May 30, 3:41 pm, Kara [karine.marab...@aero.org](mailto:karine.marab...@aero.org) wrote:
> > > > 
> > > > > I used the default ES settings and it is the lowercased. I would  
> > > > > like it be able to search for both case sensitive and insensitive.  
> > > > > How can I configure ES to do that?
> > > 
> > > > > Thanks,  
> > > > > Karine
> > > 
> > > > > On May 30, 11:25 am, Ivan Brusic [i...@brusic.com](mailto:i...@brusic.com) wrote:
> > > 
> > > > > > Case sensitivity relates to the type of analysis used on a field.  
> > > > > > If you use the standard analyzer, then all the terms are  
> > > > > > lowercased. Make sure you are using the same analyzer for both  
> > > > > > indexing and querying.  
> > > > > > If you lowercase during indexing, but not during querying, then  
> > > > > > you will have a mismatch.
> > > 
> > > > > > The standard, stop and simple analyzers lowercase terms. The  
> > > > > > whitespace and keyword analyzers do not. All these principals  
> > > > > > derive from Lucene, so you can look up in Lucene how  
> > > > > > analyzers/tokenizers/filters work.
> > > 
> > > > > > Cheers,
> > > 
> > > > > > Ivan
> > > 
> > > > > > On Wed, May 30, 2012 at 11:12 AM, Kara [karine.marab...@aero.org](mailto:karine.marab...@aero.org)  
> > > > > > wrote:
> > > > > > 
> > > > > > > Can someone refer me to a good documentation where it shows how  
> > > > > > > to enable the ES case sensitivity. I need to integrate it with  
> > > > > > > my  
> > > > > > > Java client where I only issue queries.
> > > 
> > > > > > > Thanks,  
> > > > > > > Karine

---

<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 22, 2014, 4:17am UTC](https://discuss.elastic.co/t/case-sensitivity-in-es/7918/9 "2014-09-22T04:17:20Z")

</div>

You can search case sensitive by this :

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

```
    QueryFilterBuilder qb =  

```

FilterBuilders.queryFilter(QueryBuilders.queryString(value+"\*"));

```
    return client.prepareSearch(indexName)
            .setTypes(indexType)
            .setSearchType(SearchType.DFS_QUERY_AND_FETCH)

```

.setQuery(QueryBuilders.filteredQuery(QueryBuilders.prefixQuery(key, value),  
qb)).execute()  
.actionGet();  
}

--  
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---

<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 22, 2014, 4:23am UTC](https://discuss.elastic.co/t/case-sensitivity-in-es/7918/10 "2014-09-22T04:23:36Z")

</div>

You can search case sensitive by this :

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

```
    QueryFilterBuilder qb = FilterBuilders.queryFilter(QueryBuilders.queryString(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:** ![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 22, 2014, 4:24am UTC](https://discuss.elastic.co/t/case-sensitivity-in-es/7918/11 "2014-09-22T04:24:57Z")

</div>

You can search case sensitive by this :

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

```
    QueryFilterBuilder qb = FilterBuilders.queryFilter(QueryBuilders.queryString(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:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 1:00am UTC](https://discuss.elastic.co/t/case-sensitivity-in-es/7918/12 "2017-07-06T01:00:46Z")

</div>