等效于neo4j中的row_number [英] Equivalent of row_number in neo4j

问题描述

我正在尝试运行一个查询，其中我根据整数在查询中出现的顺序分配整数.我希望它能起到以下作用:

I'm trying to run a query where I assign integers based on the order they appeared in the query. I'd like it to work to the effect of:

MATCH用户RETURN用户ORDER BY BY created_at SET user.number = ROW_NUMBER()

是否有一种方法可以在单个查询中执行此操作?谢谢！

Is there a way to do this in a single query? Thanks!

推荐答案

您可以通过玩一个收藏集来做到这一点:

You can do it by playing a bit with a collection :

MATCH (n:User)
WITH n
ORDER BY n.created_at
WITH collect(n) as users
UNWIND range(0, size(users)-1) as pos
SET (users[pos]).number = pos

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