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WITH PostsWithTags AS (
    SELECT 
        PostTags.PostId,
        COUNT(PostTags.TagId) AS TagCount
    FROM PostTags
    GROUP BY PostTags.PostId
    HAVING COUNT(PostTags.TagId) >= 5
)

SELECT 
    STRING_AGG(Tags.TagName, ', ') AS Tags,
    COUNT(Tags.TagName) AS NumberOfTags,
    Posts.Id AS PostId,
    Posts.OwnerUserId AS UserId,
    Posts.Body AS PostBody
FROM Posts
JOIN PostsWithTags ON Posts.Id = PostsWithTags.PostId
JOIN PostTags ON Posts.Id = PostTags.PostId
JOIN Tags ON PostTags.TagId = Tags.Id
GROUP BY Posts.Id, Posts.OwnerUserId, Posts.Body
ORDER BY Posts.Id;

fork query

edited nov 1 jon.doe46164

created nov 1 anonymous