Elastic search parse a string

Elastic Stack Elasticsearch
1

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 ?

2

I would recommend you have a look at the wildcard field type as I believe it is the most efficient way to search for substrings.

3

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<Page> search = client.search(
                                    request,
                                    Page.class);

but it doesn't works.

4

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.

5

How can i update the mapping of a field with java api ?
I already tried with the documentation but it didn't help me.

6

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.

7

I think that the default analyzer and the default behavior of the match query will work in that case.

8

Do you know how can i apply the standard analyzer to my query ?

9

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.

10

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