neo4j - 创建唯一 Neo4j 中的语法错误我该如何解决？

Question

LOAD CSV WITH HEADERS FROM 
'file:///epl_mataches.csv' as row 
MATCH (c1:Club {name:row.`Team1`}), (c2:Club {name:row.`Team2`})
CREATE UNIQUE (c1) -[f:FEATURED{
    round:toInteger(row.Round),
    date:row.Date,
    homeTeamFTScore: toInteger(split(row.FT,"-" [0])),
    awayTeamFTScore: toInteger(split(row.FT,"-" [1])),
    homeTeamHTScore: toInteger(split(row.HT,"-" [0])),
    awayTeamHTScore: toInteger(split(row.HT,"-" [1]))
}] -> (c2)

我收到错误说明无效输入“唯一”：预期“（”，“allShortestPaths”或“最短路径”（第4行，第8列（偏移量：135））“创建唯一（c1）-[f：FEATURED {”

Answer 1

该CREATE UNIQUE声明已被弃用。要完成相同的功能，您可以使用该MERGE语句。

LOAD CSV WITH HEADERS FROM 
'file:///epl_mataches.csv' as row 
MATCH (c1:Club {name:row.`Team1`}), (c2:Club {name:row.`Team2`})
MERGE (c1) -[f:FEATURED{
    round:toInteger(row.Round),
    date:row.Date,
    homeTeamFTScore: toInteger(split(row.FT,"-" [0])),
    awayTeamFTScore: toInteger(split(row.FT,"-" [1])),
    homeTeamHTScore: toInteger(split(row.HT,"-" [0])),
    awayTeamHTScore: toInteger(split(row.HT,"-" [1]))
}] -> (c2)