Untitled query #31048

SQL

USE commonswiki_p;
SELECT
  page_is_redirect,
  page_title,
  user_name,
  logs.log_timestamp,
  logs.log_comment
FROM page
JOIN page_restrictions ON page_id = pr_page
AND page_namespace = 828
AND pr_type = 'edit'
AND pr_level = 'sysop'
AND pr_expiry = 'infinity'
LEFT JOIN logging AS logs ON logs.log_title = page_title
                         AND logs.log_namespace = 828
                         AND logs.log_type = 'protect'
LEFT JOIN `user` ON logs.log_user = user_id 
WHERE CASE WHEN (NOT ISNULL(log_timestamp)) 
  THEN log_timestamp = (SELECT MAX(last.log_timestamp)
                        FROM logging AS last 
                        WHERE log_title = page_title 
                        AND log_namespace = 828
                        AND log_type = 'protect') 
  ELSE 1 END;
SQL

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