Lucene搜索具有特定字段的文档? [英] Lucene Search for documents that have a particular field?

问题描述

Lucene.Net- 有没有一种方法可以查询包含特定字段的文档.

Lucene.Net - Is there a way to query for documents that contain a particular field.

让我们说一些文档的字段为'foo'，而有些则没有.

Lets say some of my documents have a field 'foo' and some do not.

我想查找所有具有'foo'字段的文档-不管foo的值是什么.

I want to find all documents that have the field 'foo' - regardless of what the value of foo is.

我该怎么做?是某种TermQuery吗?

How do I do this? Is it some sort of TermQuery?

推荐答案

尝试foo:[* TO *] 应该适用于字段'foo'的所有非空值

Try foo:[* TO *] should work for all non-null values of field 'foo'

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