在 ArangoDB 中将两个遍历相交 [英] Intersect two traversals in ArangoDB

问题描述

我试图了解如何在 ArangoDB 中将两个结果相交，我的场景如下所示.

I'm trying to understand how to intersect two results in ArangoDB and my scenario looks like this.

我可以通过查询轻松找到居住在西班牙、岛屿或欧洲的用户:

I can easily find users living in Spain, Island or Europe with the query:

FOR x IN 1..3 INBOUND "places/Europe" situedIn,livesIn 
FILTER IS_SAME_COLLECTION('users',x)
return x

我想了解的是将搜索功能扩展到包括职业的最佳方式:

What I want to understand is the best way to extend the search capabilities to include Profession:

示例:

• 返回西班牙的所有警察(返回 [A])
• 返回欧洲的所有警察(返回 [A])
• 返回欧洲的所有 Legal(返回 [A,B])

感谢您的帮助

推荐答案

经过多番搜索，答案是 INTERSECTION

After some more searching the answer is INTERSECTION

FOR a IN INTERSECTION (

(FOR x IN 1..3 INBOUND "places/Europe" situedIn
   FOR p IN INBOUND x livesIn
   return p),

(FOR x IN 1..3 INBOUND "profession/Medical" specializes
   FOR p IN INBOUND x worksWith
   return p)

) RETURN a

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