Neo4j Cypher获取关系方向 [英] Neo4j Cypher Get Relationship Direction

问题描述

我有以下密码查询，该查询返回特定节点的所有(输入和输出)关系:

I have following cypher query which returns all (in and out) relationships of an specific node:

START s=node(1) MATCH s<-[r]->(t) RETURN type(r) as RelationshipType, .......

现在，我想找出每种关系的方向.是否有类似"RETURN RelationshipDirection(r)"的命令? :)

Now I want to find out the direction of each relationship. Is there an command like "RETURN RelationshipDirection(r)" ?? :)

谢谢.

推荐答案

对于neo4j 2.0，您可以使用startnode(r)

Per neo4j 2.0, you can use startnode(r)

请参阅 http://docs.neo4j.org/chunked/snapshot /query-functions-scalar.html#functions-startnode

STARTNODE返回关系的起始节点

STARTNODE returns the starting node of a relationship

因此在您的示例中，您可能会发现startnode(r) = s

So in your example you might find outgoing relations by startnode(r) = s

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