Wikimedia incubator stats

SQL

WITH base_table AS (
  SELECT DISTINCT 
  	rev_id, 
    rev_actor, 
    rev_timestamp, 
    rev_len, 
    rev_parent_id,
  	page_namespace, 
    page_id, 
    actor_id,
  	REGEXP_SUBSTR(page_title, 'W[a-z]/[a-z]+') AS prefix,
  	rc_new_len - rc_old_len AS byte_diff
  FROM 
    revision rev
  JOIN 
    page 
    ON rev.rev_page = page.page_id
  JOIN 
    actor
    ON rev.rev_actor = actor.actor_id
  LEFT OUTER JOIN 
    recentchanges rc 
    ON rev.rev_id = rc.rc_this_oldid
  JOIN
  	user
  	ON actor.actor_id = user.user_id
  WHERE 
    page_namespace IN (0, 1, 10, 11, 14, 15, 828, 829) AND
  	-- explicity remove admins who often make edits across multiple incubating projects
  	NOT user_name IN ('MF-Warburg', 'Jon Harald Søby', 'Minorax')
  HAVING 
    prefix <> ''
  ORDER BY 
    rev_id DESC)

  
    SELECT 
        prefix, 
        SUM(CASE WHEN byte_diff < 0 THEN byte_diff ELSE 0 END) AS bytes_removed_30D,
        SUM(CASE WHEN byte_diff >= 0 THEN byte_diff ELSE 0 END) AS bytes_added_30D,
    	COUNT(DISTINCT actor_id) AS actor_count,
    	COUNT(DISTINCT rev_id) AS edit_count,
    	COUNT(DISTINCT page_id) AS pages_count
    FROM 
        base_table
    GROUP BY 
        prefix
SQL

Checking query status...
