# Elastic search parse a string
**URL:** https://discuss.elastic.co/t/elastic-search-parse-a-string/308164
**Category:** Elasticsearch
**Created:** [June 25, 2022, 12:20pm UTC](https://discuss.elastic.co/t/elastic-search-parse-a-string/308164 "2022-06-25T12:20:07Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@Dorian](https://discuss.elastic.co/u/Dorian)
#### Post date: [June 25, 2022, 12:20pm UTC](https://discuss.elastic.co/t/elastic-search-parse-a-string/308164/1 "2022-06-25T12:20:07Z")
Hi,
I search a way to find a string inside another string by parsing it.
For example i index into elasticSearch a document that contain the text : "2000Newyork" in a field name "id"
And now i want to find the indexed document with a query like "2000" or "Newyork".
How can i do that ?
---
### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [June 25, 2022, 12:23pm UTC](https://discuss.elastic.co/t/elastic-search-parse-a-string/308164/2 "2022-06-25T12:23:12Z")
I would recommend you have a look at the [wildcard field type](https://www.elastic.co/guide/en/elasticsearch/reference/8.2/keyword.html#wildcard-field-type) as I believe it is the most efficient way to search for substrings.
---
### Author:  [@Dorian](https://discuss.elastic.co/u/Dorian)
#### Post date: [June 25, 2022, 12:39pm UTC](https://discuss.elastic.co/t/elastic-search-parse-a-string/308164/3 "2022-06-25T12:39:40Z")
I tried to do this :
```
var mq = QueryBuilders.wildcard().field("id")
.wildcard(s)
.build();
SearchRequest request = new SearchRequest.Builder()
.index("home2")
.size(size)
.query(mq._toQuery())
.build();
SearchResponse search = client.search(
request,
Page.class);
```
but it doesn't works.
---
### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [June 25, 2022, 12:41pm UTC](https://discuss.elastic.co/t/elastic-search-parse-a-string/308164/4 "2022-06-25T12:41:30Z")
You will need to make sure you have the appropriate mappings in your index. Also please do not post images of text as they are hard to read and search.
---
### Author:  [@Dorian](https://discuss.elastic.co/u/Dorian)
#### Post date: [June 25, 2022, 12:57pm UTC](https://discuss.elastic.co/t/elastic-search-parse-a-string/308164/5 "2022-06-25T12:57:26Z")
How can i update the mapping of a field with java api ?
I already tried with the documentation but it didn't help me.
---
### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [June 25, 2022, 1:50pm UTC](https://discuss.elastic.co/t/elastic-search-parse-a-string/308164/6 "2022-06-25T13:50:31Z")
You can generally not update mappings in Elasticsearch. Instead create an index template and reindex your data. I usually do this through Kibana, so can not help with the Java API.
---
### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [June 25, 2022, 2:59pm UTC](https://discuss.elastic.co/t/elastic-search-parse-a-string/308164/7 "2022-06-25T14:59:09Z")
I think that the default analyzer and the default behavior of the match query will work in that case.
---
### Author:  [@Dorian](https://discuss.elastic.co/u/Dorian)
#### Post date: [June 26, 2022, 9:53am UTC](https://discuss.elastic.co/t/elastic-search-parse-a-string/308164/8 "2022-06-26T09:53:52Z")
Do you know how can i apply the standard analyzer to my query ?
---
### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [June 26, 2022, 10:57am UTC](https://discuss.elastic.co/t/elastic-search-parse-a-string/308164/9 "2022-06-26T10:57:46Z")
It is applied through the mappings of the index, e.g. through an index template when the index is created. It is not controlled through the query.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 24, 2022, 10:57am UTC](https://discuss.elastic.co/t/elastic-search-parse-a-string/308164/10 "2022-07-24T10:57:51Z")
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