instruction: Edit Impact on Questions only.
response: WITH Editors AS (SELECT DISTINCT PostId, UserId, 1 AS ECount FROM PostHistory WHERE PostHistoryTypeId = 5), QuestionCount AS (SELECT COUNT(*) AS TotalQuestions FROM Posts WHERE PostTypeId = 1 AND ClosedDate IS NULL) SELECT ROW_NUMBER() OVER (ORDER BY SUM(ECount) DESC) AS "rank", Users.Id AS "user_link", Users.DisplayName AS "sort_name", TotalQuestions, SUM(Editors.ECount) AS EditedQuestions, (100 * SUM(Editors.ECount)) / TotalQuestions AS "percent" FROM Users, QuestionCount, Editors WHERE Users.Id = Editors.UserId GROUP BY Users.Id, Users.DisplayName, TotalQuestions ORDER BY SUM(ECount) DESC LIMIT 10