# Define analyzer in a percolator query\_string
**URL:** https://discuss.elastic.co/t/define-analyzer-in-a-percolator-query-string/15756
**Category:** Elasticsearch
**Created:** [February 12, 2014, 2:10pm UTC](https://discuss.elastic.co/t/define-analyzer-in-a-percolator-query-string/15756 "2014-02-12T14:10:16Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@dunaeth](https://discuss.elastic.co/u/dunaeth)
#### Post date: [February 12, 2014, 2:10pm UTC](https://discuss.elastic.co/t/define-analyzer-in-a-percolator-query-string/15756/1 "2014-02-12T14:10:16Z")
Hi,
I am trying to register a percolator query that would analyze an URI field
to check whether or not it contains a given expression, defining at the
same time the analyzer used :
curl -XPUT '[http://127.0.0.1:9200/\_percolator/tester/test1](http://127.0.0.1:9200/_percolator/tester/test1)' -d '{
"query":{
"simple\_query\_string":{
"fields":[
"uri\_field"
],
"query":"test",
"analyzer":"simple"
}
}
}'
but it seems the analyzer used stays the default one, so that this doc is
not matched by the percolator query :
curl -XPOST '[http://127.0.0.1:9200/tester/test/\_percolate](http://127.0.0.1:9200/tester/test/_percolate)' -d '{
"doc": {
"uri\_field": "[http://www.test.foo](http://www.test.foo)"
}
}'
Am I doing something wrong or is it just impossible ?
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### Author:  [@dunaeth](https://discuss.elastic.co/u/dunaeth)
#### Post date: [February 12, 2014, 2:20pm UTC](https://discuss.elastic.co/t/define-analyzer-in-a-percolator-query-string/15756/2 "2014-02-12T14:20:55Z")
Btw, I found a different way to achieve my primary goal using a different
percolate query :
curl -XPUT '[http://127.0.0.1:9200/\_percolator/tester/test1](http://127.0.0.1:9200/_percolator/tester/test1)' -d '{
"query":{
"query\_string":{
"fields":[
"uri\_field"
],
"query":"_test_"
}
}
}'
But it would be better if I could use simple query strings with analyzers
since they best fit my main goal.
Le mercredi 12 février 2014 15:10:16 UTC+1, Dunaeth a écrit :
> Hi,
>
> I am trying to register a percolator query that would analyze an URI field
> to check whether or not it contains a given expression, defining at the
> same time the analyzer used :
>
> curl -XPUT '[http://127.0.0.1:9200/\_percolator/tester/test1](http://127.0.0.1:9200/_percolator/tester/test1)' -d '{
>
> "query":{
>
> "simple\_query\_string":{
>
> "fields":[
>
> "uri\_field"
>
> ],
>
> "query":"test",
>
> "analyzer":"simple"
>
> }
>
> }
>
> }'
>
> but it seems the analyzer used stays the default one, so that this doc is
> not matched by the percolator query :
>
> curl -XPOST '[http://127.0.0.1:9200/tester/test/\_percolate](http://127.0.0.1:9200/tester/test/_percolate)' -d '{
>
> "doc": {
>
> "uri\_field": "[http://www.test.foo](http://www.test.foo)"
>
> }
>
> }'
>
> Am I doing something wrong or is it just impossible ?
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---
### Author:  [@Binh\_Ly](https://discuss.elastic.co/u/Binh_Ly)
#### Post date: [February 12, 2014, 9:24pm UTC](https://discuss.elastic.co/t/define-analyzer-in-a-percolator-query-string/15756/3 "2014-02-12T21:24:19Z")
To explain what's happening in your scenario, when you make this call:
curl -XPOST '[http://127.0.0.1:9200/tester/test/\_percolate](http://127.0.0.1:9200/tester/test/_percolate)' -d '{
{
"doc": {
"uri\_field": "[http://www.test.foo](http://www.test.foo)"
}
}'
The value "[http://www.test.foo](http://www.test.foo)" is indexed using the standard analyzer (or
whatever is defined in your mapping for the uri\_field, if you have one). So
in the case of the standard analyzer, this is broken down to ("http",
"www.test.foo").
When you define this query:
curl -XPUT '[http://127.0.0.1:9200/\_percolator/tester/test1](http://127.0.0.1:9200/_percolator/tester/test1)' -d '{
"query":{
"simple\_query\_string":{
"fields":[
"uri\_field"
],
"query":"test",
"analyzer":"simple"
}
}
}'
The _search_ value "test" is analyzed using the simple analyzer, then it is
executed against the _indexed_ value "[http://www.test.foo](http://www.test.foo)" which was
analyzed using the standard analyzer. Note that the simple analyzer is not
applied to the indexed value "[http://www.test.foo](http://www.test.foo)". It is only applied to
the query value "test". You cannot influence the _index_ analyzer at query
time. You can only influence the _search_ analyzer.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 1:50am UTC](https://discuss.elastic.co/t/define-analyzer-in-a-percolator-query-string/15756/4 "2017-07-06T01:50:39Z")