Example of full-text search across multiple fields in Neo4j?

问题

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/

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

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

回答1:

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"]
})

Then, to search the index:

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

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

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

See the APOC docs for more info.

来源：https://stackoverflow.com/questions/45867968/example-of-full-text-search-across-multiple-fields-in-neo4j