aql

The scenario is this: I have an ArangoDB collection containing items, and another collection containing tags. I am using a graph, and I have an edge collection called "Contains" connecting the items and tags. An item has multiple tags. Now I am trying to do a search for items containing multiple tags. E.g. items containing the tags "photography", "portrait" and "faces". My general approach is to start a graph traversal from each of the tag vertices and find the items that relate to that tag. That part works fine. I get a list of items. But the last part of my task is to make an intersection of

I'm trying to use ArangoDB to get a list of friends-of-friends. Not just a basic friends-of-friends list, I also want to know how many friends the user and the friend-of-a-friend have in common and sort the result. After several attempts at (re)writing the best performing AQL query, this is what I ended up with: LET friends = ( FOR f IN GRAPH_NEIGHBORS('graph', @user, {"direction": "any", "includeData": true, "edgeExamples": { name: "FRIENDS_WITH"}}) RETURN f._id ) LET foafs = (FOR friend IN friends FOR foaf in GRAPH_NEIGHBORS('graph', friend, {"direction": "any", "includeData": true,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: The below query would not work if I used an array but work normally if we use a string to construct the snippet. Did I make a mistake somewhere or is this one is a bug related to arango? var array=["1","2"] //Make a snippet depend on array. var snippet=aql.literal(`FILTER u.id IN "${array}"`) //Main query. Result is incorrect even though it runs var query=db._query(aql` For u in Collection {$snippet} RETURN u ` ) Example of the correct query using string var string="1" var snippet=aql.literal(`FILTER u.id == "${array}"`) 回答1: FILTER u.id IN

I have a graph with three collections which items can be connected by edges. ItemA is a parent of itemB which in turn is a parent of itemC. Elements only can be connected by edges in direction "_from : child, _to : parent" Currently I can get only "linear" result with this AQL query: LET contains = (FOR v IN 1..? INBOUND 'collectionA/itemA' GRAPH 'myGraph' RETURN v) RETURN { "root": { "id": "ItemA", "contains": contains } } And result looks like this: "root": { "id": "itemA", "contains": [ { "id": "itemB" }, { "id": "itemC" } ] } But I need to get a "hierarchical" result of graph traversal