neo4j how to work with two match - neo4j

Question

I have two queries.
First query is
match (user)-[r:CreatesChat]-(chatitems)
Second query is
match (chatitems)-[r:PartOf]-(teamschat)-[s:OwnedBy]-()
I want to return the first 3 users from the first query
And to return the first 3 teams from the second query
The goal is to check if users from first query have the teams of second query
My neo4j query is
match (user)-[r:CreatesChat]-(chatitems)
with user.id as uid,chatitems.id as chatid
order by uid desc
with collect([uid])[..3] as users,collect([chatid])[..3] as chats
UNWIND users AS idusers
match (chatitems)-[r:PartOf]-(teamschat)-[s:OwnedBy]-()
return idusers
This query return
Returned 133239 rows in 1360 ms, displaying first 1000 rows
But I execute the query
match (user)-[r:CreatesChat]-(chatitems)
with user.id as uid,chatitems.id as chatid
order by uid desc
with collect([uid])[..3] as users,collect([chatid])[..3] as chats
UNWIND users AS idusers
return idusers
idusers returned are right
Returned 3 rows in 539 ms.
How can I relate these two queries ?

Answer 1

I think you want to collect both the top 3 users and the top 3 teams and then unwind over each collection. Something like this:
MATCH (user:User)-[:CreatesChat]->(chatitems:Chat)
WITH user ORDER BY user.id DESC LIMIT 3
WITH collect(user) AS users
MATCH (chatitems:Item)-[:PartOf]->(teamsChat:Team)-[:OwnedBy]-()
WITH users, teamsChat ORDER BY teamsChat.id DESC LIMIT 3
WITH users, collect(teamsChat) AS teams
UNWIND users AS user
UNWIND teams AS team
MATCH p=(chatitems:Item)-[:PartOf]-(team)-[:OwndedBy]-(user)
RETURN p