Untitled query #83285

SQL

USE tewiki_p;
SELECT actor_name, actor_user,
	count(actor_name) as Edit_count, 
    SUM(abs(CAST(rev.rev_len as signed)-if(rev.rev_parent_id=0,0,CAST(parent.rev_len as signed)))) AS Gross_byte_count, 
    SUM(CAST(rev.rev_len as signed)-if(rev.rev_parent_id=0,0,CAST(parent.rev_len as signed))) AS nett_byte_count,
    SUM(abs(CAST(rev.rev_len as signed)-if(rev.rev_parent_id=0,0,CAST(parent.rev_len as signed))))/count(actor_name) as bytes_per_edit
FROM revision rev
left join actor ON actor_id = rev.rev_actor
left JOIN revision parent
ON parent.rev_id = rev.rev_parent_id
left JOIN page
ON page_id = rev.rev_page
WHERE  
-- page_namespace = 0 and
 actor_user IS NOT NULL
 and rev.rev_parent_id!=0
and page_namespace=0

--    and left(rev.rev_timestamp,4)=2020
GROUP BY actor_name
order by Gross_byte_count desc
limit 100
SQL

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