Neo4j匹配路径排除具有特定标签的节点 [英] Neo4j match path exclude node with certain label

问题描述

我在Neo4j中检索路径时遇到问题，排除了某些标签.

I am having a issue to retrieve path in neo4j exclude certain label.

敌人的例子，我有

               -->(h)-->(j)
              /
(a)-->(b)-->(c)-->(d)-->(i)
        \           
         -->(f)-->(g)

带有h节点的

带有Deleted标签.

我有疑问

MATCH path = (n)-[*]->(child) where id(n)={id of node a} and NOT child:Deleted RETURN path

然后，我希望此查询返回完整路径，但排除节点h的子树，因为节点h为Deleted.

then I want this query to return the full path but exclude the subtree of node h since node h is Deleted.

返回树应该像

(a)-->(b)-->(c)-->(d)-->(i)
        \           
         -->(f)-->(g)

但是查询似乎无法正常工作.

But the query seems not working.

有人可以帮我吗?

谢谢

推荐答案

对我有用的是对路径中节点的列表理解:

What worked for me is a list comprehension over nodes in the path:

MATCH path = ()-[*]->()
WHERE NONE(n IN nodes(path) WHERE n:Deleted)
RETURN path

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