不爲也 比不能也

Mapping types are going away. Elasticsearch 6.0 supports a single mapping type per index only, and it represents the first step on the way to removing types altogether.mapping type이 없어진다. Elasticsearch 6.0은 index 당 하나의 mapping type만 지원하며, 그것은 type을 완전히 제거하는 것의 첫 번째 단계이다.This blog post explains what types are, why we are removing them, how you can migrate your indices to a single type world, and ..

The command bin/plugin has been renamed to bin/elasticsearch-plugin. The structure of the plugin ZIP archive has changed. All the plugin files must be contained in a top-level directory called elasticsearch. If you use the gradle build, this structure is automatically generated.bin/plugin command는 bin/elasticsearch-plugin 으로 이름이 변경되었다. plugin ZIP archive의 구조가 변경되었다. 모든 plugin 파일은 elasticsearch 라..

While Elasticsearch comes with a number of analyzers available out of the box, the real power comes from the ability to create your own custom analyzers by combining character filters, tokenizers, and token filters in a configuration that suits your particular data.Elasticsearch가 수많은 내장 analyzer를 제공하지만, 진정한 힘은 자신의 특별한 데이터에 적합한 설정에서, character filters, tokenizers 그리고 token filters를 조합하여, 자신만의 사용자..

The custom _all approach is a good solution, as long as you thought about setting it up before you indexed your documents. However, Elasticsearch also provides a search-time solution to the problem: the multi_match query with type cross_fields. The cross_fields type takes a term-centric approach, quite different from the field-centric approach taken by best_fields and most_fields. It treats all ..