# \_analyse field: which analyzer will be used on search? **URL:** \ **Category:** Elasticsearch\ **Created:** [July 5, 2012, 4:07pm UTC](https://discuss.elastic.co/t/-analyse-field-which-analyzer-will-be-used-on-search/8328 "2012-07-05T16:07:17Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Sebastien\_Lorber](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/sebastien_lorber/32/2551_2.png) [@Sebastien\_Lorber](https://discuss.elastic.co/u/Sebastien_Lorber)\ **Post date:** [July 5, 2012, 4:07pm UTC](https://discuss.elastic.co/t/-analyse-field-which-analyzer-will-be-used-on-search/8328/1 "2012-07-05T16:07:17Z")
Hello, I have a question about the \_analyze field [http://www.elasticsearch.org/guide/reference/mapping/analyzer-field.html](http://www.elasticsearch.org/guide/reference/mapping/analyzer-field.html) This seems pretty cool to handle documents of multiple languages on a single index, by detecting first the document language. However i often read that we should use the same analyzer for indexing and searching. But in the case of a search of a string text, how can ElasticSearch know which search analyzer to use? Should we handle that ourselves when building our query? (quite a pain) Or perhaps ES is doing some magical stuff like applying all the analyzers known for that field and creates automatically a boolean query with all these analyzers? Please tell me 🙂 Btw is it possible to put the \_analyzer field only for a specific field instead of declaring it directly for a type? For exemple if i know by statistics that my user is posting 80% of documents in english, and 20% in french, i would like to have a multi\_field which define 3 subfields "untouched" "preferedLang1" and "preferedLang2" Is it possible do do such a thing? Thanks ---
**Author:** ![Ivan](https://avatars.discourse-cdn.com/v4/letter/i/df788c/32.png) [@Ivan](https://discuss.elastic.co/u/Ivan)\ **Post date:** [July 6, 2012, 9:14pm UTC](https://discuss.elastic.co/t/-analyse-field-which-analyzer-will-be-used-on-search/8328/2 "2012-07-06T21:14:54Z")
It is possible to specify the analyzer for each field. In fact, it is the normal way to use analyzers. There is also the \_all analyzer, which would be used by default if you do not specify a field. Your use of multi-field is correct and is a perfect use case. -- Ivan On Thu, Jul 5, 2012 at 9:07 AM, Sébastien Lorber [lorber.sebastien@gmail.com](mailto:lorber.sebastien@gmail.com) wrote: > Btw is it possible to put the \_analyzer field only for a specific field > instead of declaring it directly for a type? > For exemple if i know by statistics that my user is posting 80% of documents > in english, and 20% in french, i would like to have a multi\_field which > define 3 subfields "untouched" "preferedLang1" and "preferedLang2" > Is it possible do do such a thing? > > Thanks ---
**Author:** ![Sebastien\_Lorber](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/sebastien_lorber/32/2551_2.png) [@Sebastien\_Lorber](https://discuss.elastic.co/u/Sebastien_Lorber)\ **Post date:** [July 6, 2012, 10:27pm UTC](https://discuss.elastic.co/t/-analyse-field-which-analyzer-will-be-used-on-search/8328/3 "2012-07-06T22:27:32Z")
Sorry i don't talk about the "analyzer" field of properties, but the \_analyzer field which seems to be configured on the type only in the documentation. It's not the same, here i'm trying to index the same field (even a subfield of a multifield) with multiple analyzers, according to the document country, instead to have a big multi\_field with each subfield using a country specific analyzer. Le vendredi 6 juillet 2012 23:14:54 UTC+2, Ivan Brusic a écrit : > It is possible to specify the analyzer for each field. In fact, it is > the normal way to use analyzers. There is also the \_all analyzer, > which would be used by default if you do not specify a field. > > Your use of multi-field is correct and is a perfect use case. > > -- > Ivan > > On Thu, Jul 5, 2012 at 9:07 AM, Sébastien Lorber > [lorber.sebastien@gmail.com](mailto:lorber.sebastien@gmail.com) wrote: > > > Btw is it possible to put the \_analyzer field only for a specific field > > instead of declaring it directly for a type? > > For exemple if i know by statistics that my user is posting 80% of > > documents > > in english, and 20% in french, i would like to have a multi\_field which > > define 3 subfields "untouched" "preferedLang1" and "preferedLang2" > > Is it possible do do such a thing? > > > > Thanks ---
**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, 3:21am UTC](https://discuss.elastic.co/t/-analyse-field-which-analyzer-will-be-used-on-search/8328/4 "2017-07-06T03:21:10Z")