Get all users(owners and editors) related to a set of question posts (both responses & comments)

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-- postId is the top question postId
declare @postId1 as int,@postId2 as int,@postId3 as int,@postId4 as int,@postId5 as int
declare @postId6 as int,@postId7 as int,@postId8 as int,@postId9 as int,@postId10 as int
set @postId1 = 2512683;
set @postId2 = 2512691;
set @postId3 = 2512696;
set @postId4 = 2512698;
set @postId5 = 2512702;
set @postId6 = 2512713;
set @postId7 = 2512717;
set @postId8 = 2512718;
set @postId9 = 2512720;
set @postId10 = 2512723;

-- remember that union will remove duplicate already
-- Get all users who COMMENTED on a question post and all of its responses
select x.Id,x.Reputation,x.CreationDate,x.DisplayName,x.LastAccessDate,x.WebsiteUrl,x.Location,x.AboutMe,x.Views,x.UpVotes,x.DownVotes,x.ProfileImageUrl,x.EmailHash,x.AccountId from Users x inner join
(select UserId from Comments c inner join 
(select * from Posts where Id = @postId1 or Id = @postId2 or Id = @postId3 or Id = @postId4 or Id = @postId5 or Id = @postId6 or Id = @postId7 or Id = @postId8 or Id = @postId9 or Id = @postId10 
UNION
select * from Posts where ParentId = @postId1 or ParentId = @postId2 or ParentId = @postId3 or ParentId = @postId4 or ParentId = @postId5 or ParentId = @postId6 or ParentId = @postId7 or ParentId = @postId8 or ParentId = @postId9 or ParentId = @postId10
) d 
on c.PostId = d.Id) y
on x.Id = y.UserId
UNION
-- Get all users who writes a response post (also including the post author) to a a set of questions
select y.Id,y.Reputation,y.CreationDate,y.DisplayName,y.LastAccessDate,y.WebsiteUrl,y.Location,y.AboutMe,y.Views,y.UpVotes,y.DownVotes,y.ProfileImageUrl,y.EmailHash,y.AccountId from 
( select OwnerUserId as personID from Posts where Id = @postId1 or Id = @postId2 or Id = @postId3 or Id = @postId4 or Id = @postId5 or Id = @postId6 or Id = @postId7 or Id = @postId8 or Id = @postId9 or Id = @postId10  
union
select OwnerUserId as personID from Posts where ParentId = @postId1 or ParentId = @postId2 or ParentId = @postId3 or ParentId = @postId4 or ParentId = @postId5 or ParentId = @postId6 or ParentId = @postId7 or ParentId = @postId8 or ParentId = @postId9 or ParentId = @postId10
union
select LastEditorUserId as personID from Posts where ParentId = @postId1 or ParentId = @postId2 or ParentId = @postId3 or ParentId = @postId4 or ParentId = @postId5 or ParentId = @postId6 or ParentId = @postId7 or ParentId = @postId8 or ParentId = @postId9 or ParentId = @postId10
union
select LastEditorUserId as personID from Posts where Id = @postId1 or Id = @postId2 or Id = @postId3 or Id = @postId4 or Id = @postId5 or Id = @postId6 or Id = @postId7 or Id = @postId8 or Id = @postId9 or Id = @postId10
) x
inner join 
Users y
on x.personID = y.id

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