elastic/elasticsearch

Support min_children & max_children for nested docs

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#10,043 创建于 2015年3月9日

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 (19 评论) (12 反应) (0 负责人)Java (76,700 star) (25,882 fork)batch import
:Search Relevance/Search>enhancementTeam:Search Relevancehelp wantedstalled

描述

I am opening this as a separate issue since the previous issue was closed with support for parent-child docs (https://github.com/elasticsearch/elasticsearch/issues/6019#issuecomment-77785163).

We would love to have support for min_children & max_children or similar also for nested filters/docs. http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-has-child-filter.html#_min_max_children_2

Thanks a keep up the great work.

贡献者指南

技术栈
java
领域
backend
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
5
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
over 1 week
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Knowledge of Elasticsearch nested documentsFamiliarity with Lucene index structureUnderstanding of has child filter implementation
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
15
研究方向
Investigate the Elasticsearch source code to understand how nested documents and the has child filter are implemented. The existing min children/max children support for has child queries is a reference. The goal is to extend similar functionality to nested queries. Key files to examine include NestedQueryBuilder, Filters, and related Lucene classes. The maintainers' comments in the issue (19 comments) may provide additional implementation hints.
Support min_children & max_children for nested docs · elastic/elasticsearch#10043 | Good First Issue