Most active users by bytes on plwiki

SQL

USE plwiki_p;
SELECT CONCAT("#") as number, actor_user AS user_id, CONCAT("[[user:",actor_name,"|",actor_name,"]]") AS user_name, SUM(CAST(rev.rev_len as signed)-CAST(parent.rev_len as signed)) AS byte_count
FROM actor
JOIN revision rev
ON actor_id = rev.rev_actor
JOIN revision parent
ON rev.rev_parent_id = parent.rev_id
JOIN page
ON page_id = parent.rev_page
WHERE page_namespace = 0
AND rev.rev_timestamp <= 20181231235959
AND parent.rev_timestamp <= 20181231235959
AND rev.rev_timestamp >= 20180101000000
AND parent.rev_timestamp >= 20180101000000
AND actor_user IS NOT NULL
GROUP BY actor_name
ORDER BY byte_count DESC
LIMIT 500;
SQL

Checking query status...
