創建節點與foreach之間的關係

Question

我必須創建節點和所有節點之間的關係與istat標籤;所以試過這個查詢： START MATCH (i:istat), c = node(21519) FOREACH(i|CREATE UNIQUE (c)-[r:CAN_SEE]->(i); 但控制檯給了我這個錯誤：

SyntaxException: Invalid input 'u': expected whitespace, comment, NodeLabel, MapLiteral, a parameter, a relationship pattern, '.', '[', "=~", IN, IS, '*', '/', '%', '^', '+', '-', '<', '>', "<=", ">=", '=', "<>", "!=", AND, XOR, OR or '|' (line 1, column 101) 
==> "start c =node(21519) match(i:istat) with collect(i) as istat_code,n foreach(i in istat_code: create unique (n)-[r:CAN_SEE]->(i))" 
==>                         ^

Answer 1

試試這個

START c=node(21519) 
MATCH(i:istat) WITH c,collect(i) AS istat_code 
FOREACH(t in istat_code | CREATE UNIQUE (c)-[r:CAN_SEE]->(t))