Neo4j 中跨多个字段的全文搜索示例? [英] Example of full-text search across multiple fields in Neo4j?

问题描述

我看过一些简单的文本搜索示例STARTS WITH name 例如:

I've seen some simple examples text searching STARTS WITH name such as:

• http://www.jexp.de/blog/html/full-text-and-spatial-search-in-neo4j-3.html
• https://blog.knoldus.com/2016/12/11/neo4j-with-scala-neo4j-vs-elasticsearch/

但我正在寻找更多类似跨多个字段的全文搜索的内容:title、content:

But I'm looking for something more along the lines of full-text search across multiple fields: title, content:

• https://www.digitalocean.com/community/tutorials/how-to-use-full-text-search-in-postgresql-on-ubuntu-16-04

我可以看看如何使用 Neo4j 完成此操作的示例吗?

Can I see an example of how this should be done with Neo4j?

推荐答案

您可以使用 APOC Neo4j 程序库.假设您有节点标签 Book 和 Author，并且您想要跨 :Book(title)、 进行全文查询:Book(content) 和 :Author(name) 和 :Author(address).首先，使用 apoc.index.addAllNodes 创建一个名为 bookIndex 的索引，并指定要包含在索引中的标签和属性:

You can do this using the APOC Neo4j procedure library. Let's say you have node labels Book and Author and you want to make a full text query across :Book(title), :Book(content), and :Author(name) and :Author(address). First, use apoc.index.addAllNodes to create an index called bookIndex and specify the labels and properties to include in the index:

CALL apoc.index.addAllNodes('bookIndex',{
  Book: ["title","content"],
  Author:  ["name","address"]
})

然后，搜索索引:

CALL apoc.index.search('bookIndex', 'River Runs Through It')

您也可以将其用于更复杂的图形查询:

You can use this with more complex graph queries as well:

CALL apoc.index.search('bookIndex, 'River Runs Through It')
YIELD node AS book
MATCH (book)-[:IN_GENRE]->(g:Genre)
RETURN g

使用Lucene查询语法，所以你可以做模糊搜索，需要的组件字符串等:'Norman Maclean~' 或 'Norman~ +Maclean'

Lucene query syntax is used so you can do fuzzy search, required components of the string, etc: 'Norman Maclean~' or 'Norman~ +Maclean'

有关详细信息，请参阅 APOC 文档.

See the APOC docs for more info.

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