Lucene：基于多个字段从索引中删除 [英] Lucene: delete from index, based on multiple fields

问题描述

我需要从lucene搜索索引中删除文档。标准方法：

I need to perform deletion of the document from lucene search index. Standard approach :

indexReader.deleteDocuments(new Term("field_name", "field value"));

不会这样做：我需要根据多个字段执行删除。我需要这样的东西：

Won't do the trick: I need to perform the deletion based on multiple fields. I need something like this:

(pseudo code)
TermAggregator terms = new TermAggregator();
terms.add(new Term("field_name1", "field value 1"));
terms.add(new Term("field_name2", "field value 2"));
indexReader.deleteDocuments(terms.toTerm());

是否有任何构造？

推荐答案

IndexWriter 具有允许更强大删除的方法，例如 IndexWriter.deleteDocuments（查询） 。您可以使用要删除的术语的组合构建一个BooleanQuery，并使用它。

IndexWriter has methods that allow more powerful deleting, such as IndexWriter.deleteDocuments(Query). You can build a BooleanQuery with the conjunction of terms you wish to delete, and use that.

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