用于建模传递闭包的 Neo4j 查询 [英] Neo4j query for modeling transitive clousure

问题描述

我正在探索 GraphDB 查询语言，并在 OriendDB 中询问了有关传递闭包支持的问题这里?我想看看 Neo4J 如何支持这个功能:

I am exploring GraphDB query languages, and asked a question about transitive closure support in OriendDB here? I would like to see how Neo4J supports this feature:

简而言之，假设我将所有节点都标记为 PERSON.我有被称为父亲"的边缘将这些人连接在一起.对于给定的节点 p1，我想知道以下查询在 Neo4j 中的样子:

Briefly, suppose I have Nodes all labeled as PERSON. And I have Edges called "father" connecting these persons together. For a given node say p1, I am wondering how the following query looks like in Neo4j:

找到p1的所有祖先?

我不熟悉 Neo4j 语法(但我认为可以定义我在上面解释的这样的结构)，所以请原谅我跳过模式定义.

I am not familiar with Neo4j syntax (but I think it is possible to define such an structure I explained above there), so excuse me for skipping the schema definition.

推荐答案

通过这种方式，您可以找到名为Fred Flintstone"的 PERSON 的所有祖先:

This is how you can find all the ancestors of a PERSON named "Fred Flintstone":

MATCH (p1:PERSON {name: "Fred Flintstone"})-[:father*]->(f)
RETURN f;

这就是你如何找到他所有的后代:

And this is how you can find all his descendants:

MATCH (p1:PERSON {name: "Fred Flintstone"})<-[:father*]-(d)
RETURN d;

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