จำนวนความคิดเห็นโดยเฉลี่ยที่ถูกซ่อนเมื่อมีการซ่อนอย่างน้อยหนึ่งความคิดเห็น ไม่จำเป็นต้องใช้ตารางทั้งหมด
Average number of comments hidden when at least one comment is hidden.It is not neccessary to use all the tables.
 Posts:  Id [ number]  PostTypeId [ number]  AcceptedAnswerId [ number]  ParentId [ number]  CreationDate [ time]  DeletionDate [ time]  Score [ number]  ViewCount [ number]  Body [ text]  OwnerUserId [ number]  OwnerDisplayName [ text]  LastEditorUserId [ number]  LastEditorDisplayName [ text]  LastEditDate [ time]  LastActivityDate [ time]  Title [ text]  Tags [ text]  AnswerCount [ number]  CommentCount [ number]  FavoriteCount [ number]  ClosedDate [ time]  CommunityOwnedDate [ time]  ContentLicense [ text] 
WITH hidden_comments AS (SELECT COUNT(*) - 5.0 AS N FROM Comments GROUP BY PostId) SELECT AVG(N) FROM hidden_comments WHERE N >= 1