# Dynamic Analyzer in Search
**URL:** https://discuss.elastic.co/t/dynamic-analyzer-in-search/38605
**Category:** Elasticsearch
**Created:** [January 7, 2016, 11:31am UTC](https://discuss.elastic.co/t/dynamic-analyzer-in-search/38605 "2016-01-07T11:31:08Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@rrecacharedk](https://discuss.elastic.co/u/rrecacharedk)
#### Post date: [January 7, 2016, 11:31am UTC](https://discuss.elastic.co/t/dynamic-analyzer-in-search/38605/1 "2016-01-07T11:31:08Z")
Hi,
I have a custom analyzer ( custom\_asciifolding is "mapping" type =\> ["á=\>a", "é=\>e" ... etc] ):
> ... "analyzer": {
> "standard\_custom": {
> "type": "custom",
> "char\_filter": ["custom\_asciifolding"],
> "filter": ["lowercase"],
> "tokenizer": "standard"
> } ...
I have a contact register indexed with name property (value: Rubén Recacha)
When I put analyzer parameter in query string, does not work correctly:
> {
> "query": {
> "query\_string": {
> "query": "ruben",
> "analyzer": "standard\_custom"
> }
> }
> }
==\> 0 results
> {
> "query": {
> "query\_string": {
> "query": "rubén",
> "analyzer": "standard\_custom"
> }
> }
> }
==\> 1 results
It is a bug?
How I could to do a query changing the analyzer dynamically?
Thank you very much,
Best Regards,
Rubén Recacha.
---
### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [January 7, 2016, 12:41pm UTC](https://discuss.elastic.co/t/dynamic-analyzer-in-search/38605/2 "2016-01-07T12:41:39Z")
I did answer there already: [https://github.com/elastic/elasticsearch/issues/15818](https://github.com/elastic/elasticsearch/issues/15818)
---
### Author:  [@rrecacharedk](https://discuss.elastic.co/u/rrecacharedk)
#### Post date: [January 7, 2016, 1:39pm UTC](https://discuss.elastic.co/t/dynamic-analyzer-in-search/38605/3 "2016-01-07T13:39:44Z")
Hi @dadoonet, I use query without "\*" (wildcard char) in this post.
Thanks for your help, but I want select analyzer dynamically in that search and with "analyzer" parameter it not works.
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### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [January 7, 2016, 8:55pm UTC](https://discuss.elastic.co/t/dynamic-analyzer-in-search/38605/4 "2016-01-07T20:55:56Z")
Ha sorry. I missed that.
Just a comment, be very careful with the client you are using. It needs to send UTF-8 requests. If your character `é` is not encoded in UTF-8, that won't work.
Some clients (in browser) typically sends something else than UTF-8 (depending on your setup).
It sometimes better to test it from the command line (using curl for example).
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 5, 2017, 11:26pm UTC](https://discuss.elastic.co/t/dynamic-analyzer-in-search/38605/5 "2017-07-05T23:26:16Z")