单独merge两端节点，然后只create关系 load csv with headers from "file:/relation.csv"as row merge (n:Person{name:row.id1}) merge(m:Person{name:row.id2}) create(n)-[r:Relation{label:row.label}]->(m) return n,r,m
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单独merge两端节点，然后只create关系
load csv with headers from "file:/relation.csv"as row
merge (n:Person{name:row.id1}) merge(m:Person{name:row.id2})
create(n)-[r:Relation{label:row.label}]->(m) return n,r,m
