如何在Lucene搜索结果中进行分组? [英] How to do grouping in Lucene search results?

问题描述

如何将Lucene返回的搜索结果按字段分组(类似于SQL Server)?

How do I group search results returned by Lucene by fields (similar to SQL Server's)?

推荐答案

Lucene 3.4现在支持多面搜索.在编制索引时，您可以指定一些补充内容；在搜索时，您可以按查询和按组进行搜索.

Lucene 3.4 now supports faceted search. At indexing you specify something supplementary and at search time you search by query and by groups.

对于接下来的3个文档，您将这些组编入索引

for next 3 docs, that you index with these groups

doc1: monday, 1pm,  3min    
doc2: monday, 1pm,  4min    
doc3: monday, 2pm,  3min

您只能搜索第一个参数:星期一，并获得值:3， 或者，您可以向下钻取并搜索星期一/1pm并获得价值:2 或设置搜索深度3并获得

you can search only for the first param: monday, and get value:3, or you can drill down and search for monday/1pm and get value:2 or set depth of search 3 and get

monday :3
monday/1pm :2
monday/1pm/3min :1
monday/1pm/4min :1
monday/2pm :1
monday/2pm/3min :1

这是但所有内容大多数都已阅读分面搜索

But most of all readfaceted search

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