Neo4j：如何将多个关系加入到汇总的关系中？

Question

我有一个图表，其中一些节点之间存在许多关系，这使得浏览这些图表变得困难。是否有可能用单个＆＃34;聚合＆＃34;替换这种多重关系。一，可能是另一种类型？

理想情况下，我想加入节点疼痛之间存在超过10种关系的那些关系 - 但任何事情都会有所帮助。

Answer 1

我认为你可以这样做：

// Match the pattern
MATCH (a:Node)-[t:REL_TYPE]->(b:Node)
// pass to the next context nodes a, b, list of t 
// where number of relations between a and b is greater than 10
WITH a, b, collect(t) AS ts, count(t) AS count
WHERE count > 10
// create new relation between a and b nodes
CREATE (a)-[:OTHER_REL_TYPE]->(b)
// pass list of old relations to the next context
WITH ts
// unwind & delete old relations
UNWIND (ts) AS t
DELETE t
RETURN *