_doc is a mapping type, which by the way is now deprecated. A mapping type used to be a separate collection inside the same index. ... <看更多>

document metadata 就是描述document 本身屬性用的資料，通常會包含以下內容：. _index ：document 所屬的index 名稱. _type ：document 類型(例如：_doc). ... <看更多>

Issue Elasticsearch version (bin/elasticsearch --version): 7.5.1 ... Related logs, you could see that lot's of duplicated _doc types of ... ... <看更多>

In this training from our course, Elasticsearch 7 and the Elastic Stack – In-Depth & Hands-On! we cover how to ... ... <看更多>