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/* 1. Initial Title - The first title a question is asked with. 2. Initial Body - The first raw body text a post is submitted with. 3. Initial Tags - The first tags a question is asked with. 4. Edit Title - A question's title has been changed. 5. Edit Body - A post's body has been changed, the raw text is stored here as markdown. 6. Edit Tags - A question's tags have been changed. 7. Rollback Title - A question's title has reverted to a previous version. 8. Rollback Body - A post's body has reverted to a previous version - the raw text is stored here. 9. Rollback Tags - A question's tags have reverted to a previous version. 10. Post Closed - A post was voted to be closed. 11. Post Reopened - A post was voted to be reopened. 12. Post Deleted - A post was voted to be removed. 13. Post Undeleted - A post was voted to be restored. 14. Post Locked - A post was locked by a moderator. 15. Post Unlocked - A post was unlocked by a moderator. 16. Community Owned - A post has become community owned. 17. Post Migrated - A post was migrated. 18. Question Merged - A question has had another, deleted question merged into itself. 19. Question Protected - A question was protected by a moderator 20. Question Unprotected - A question was unprotected by a moderator 21. Post Disassociated - An admin removes the OwnerUserId from a post 22. Question Unmerged - A previously merged question has had its answers and votes restored. */ SELECT PostHistoryTypeId, COUNT(PostId) FROM PostHistory GROUP BY PostHistoryTypeId ORDER BY PostHistoryTypeId