如何在Neo4j中复制路径? [英] How can I copy a path in Neo4j?

问题描述

我想在Neo4j中重新创建整个节点和关系链.

I'd like to recreate a whole chain of nodes and relationships in Neo4j.

我知道我可以使用p=保存路径，但是CREATE不接受.

I know that I can save a path with p=, but CREATE doesn't accept this.

MATCH p=(:Person)-[*]->(:Dog) CREATE p

有没有办法做到这一点?

Is there a way to do this?

推荐答案

警告:通常会在图数据库中创建与节点的其他关系，而不是重复的节点.

WARNING: One would usually create additional relationships to nodes rather than duplicate nodes in a graph database.

这不是严格密码，但可以在 Neo4j中使用外壳.它应该从Neo4j 2.0.0开始工作.请注意:此功能是实验性的且不完整的功能.

This is not strictly Cypher, but works in the Neo4j shell. It should work as of Neo4j 2.0.0. A word of caution: this is listed as an experimental and incomplete feature.

dump MATCH (pers:Person)-[r*:OWNS]->(d:Dog) RETURN pers,r,d;

您可以直接执行返回的输出以复制节点.如果ID已经存在，则将对其进行更改.将使用相同的标签和属性创建节点和关系.

You can directly execute the returned output to duplicate the nodes. IDs will be changed if they already exist. The nodes and relationships will be created with the same labels and properties.

这对于备份数据库非常方便.

This is super handy for backing up a database.

有关转储命令的更多信息

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