elasticsearch - Elasticsearch query against multiple types

Question

I have two types stored in ES:

• Photos (fields: photo-id, description, createDateAsLong)
• VisitHistory (username, photo-id - with 30days TTL)

Is it possible to query ES for records of type Photos which photo-id doesn't exists in VisitHistory (for some username value). I mean a query which is equivalent of sql query like this:

SELECT * FROM Photos WHERE photo-id NOT IN (SELECT photo-id FROM VisitHistory WHERE username = 'somefoousername');

Answer 1

如果您将 Photos 设为父文档并将 VisitHistory 设为 Photos 的子文档，您应该能够使用组合not和has_child过滤器来构建此类请求。