如何通过在neo4j中导入csv文件为现有节点创建关系？

假设我在neo4j中创建了[a]、[b]、[c]、[d]节点。如何通过导入csv数据在这些节点之间创建关系

csv data:

id,fromNode,toNode,typeOfRelation
1,a,b,KNOWs
2,b,c,FOLLOWS
3,d,a,KNOWS
....

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如果你的节点已经在图中，我会这样做

CREATE INDEX ON :Label(name);

LOAD CSV WITH HEADERS FROM "file:///<PathToYourCSV>" as input
MATCH (from:Label  {name: input.fromNode}), (to:Label {name: input.toNode})
CREATE (from)-[:RELATION { type: input.typeOfRelation }]->(to);

帕特里克

MATCH (n:Label {name: 'b'}), 
(n)-[rel:RELATION]->(follower)
where rel.type = 'FOLLOWS'
return n, follower