创建的Neo4j从csv文件

Question

嗨节点之间动态关系有一个CSV文件，我想创建节点和关系，同时
即时通讯使用下面的查询，以创建节点

using PERIODIC COMMIT 1000 
load csv from "file:///home/gaurav/sharing/dataframe6.txt" as line fieldterminator" " 
MERGE (A :concept{name:line[0]}) 
WITH line, A 
MERGE (B :concept{name:line[1]}) 
WITH line, A, B 
create (A)-[:line[3]]->(B); // This is trouble part 

，但是当我尝试创建关系然后我得到错误

Invalid input '[': expected an identifier character, whitespace, '|', a length specification, a property map or ']' (line 7, column 18 (offset: 218)) 
"create (A)-[:line[3]]->(B);" 

Answer 1

关系不能包含方括号作为它的类型名称。您正试图在节点A和B之间创建“行[3]”关系。

Answer 2

如果您真的想以动态方式创建关系，则需要使用APOC过程，具体为apoc.create.relationship。

using PERIODIC COMMIT 1000 
load csv from "file:///home/gaurav/sharing/dataframe6.txt" as line fieldterminator" " 
MERGE (A :concept{name:line[0]}) 
WITH line, A 
MERGE (B :concept{name:line[1]}) 
WITH line, A, B 
CALL apoc.create.relationship(A, line[3], {}, B) YIELD rel 
RETURN A,B,rel