analyzer, normalizer 세팅을 해야한다.
index의 settings에 추가해야하고
mapping fields의 속성에도 해당 analyzer, normalizer를 사용한다고 명시해줘야 함.
https://prohannah.tistory.com/69
reindex로 index를 새로 만들어 진행
https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-reindex.html
https://esbook.kimjmin.net/07-settings-and-mappings/7.2-mappings
https://esbook.kimjmin.net/07-settings-and-mappings/7.1-settings
https://www.elastic.co/guide/en/elasticsearch/reference/current/normalizer.html
tokenizer, analyzer
https://esbook.kimjmin.net/06-text-analysis/6.5-tokenizer/6.5.1-standard-letter-whitespace
https://bakyeono.net/post/2016-08-20-elasticsearch-querydsl-basic.html#match-%EC%BF%BC%EB%A6%AC
full text search 검색 쿼리 종류 및 개념