monthly statistics of jawiki

SQL

use jawiki_p;
select
	user.user_name as 利用者名,
    date( user.user_registration ) as 登録日,
    min( date( user_rev.rev_timestamp ) ) as 初投稿日,
    max( date( user_rev.rev_timestamp ) ) as 最終投稿日
from user
inner join revision_userindex as user_rev on user.user_id = user_rev.rev_user
where
	user.user_name = "Tonomuraayuta" OR
	user.user_name = "Tanka~jawiki" OR
	user.user_name = "魔法陣" OR
	user.user_name = "和暦除去行為取消し" OR
	user.user_name = "和暦除去行為取り消し" OR
	user.user_name = "和暦除去行為取消" OR
	user.user_name = "武王" OR
	user.user_name = "Disputed" OR
	user.user_name = "志賀 慶一" OR
	user.user_name = "弱" OR
	user.user_name = "Inception2010"
group by user.user_id, user.user_name, user.user_registration
order by 初投稿日 asc, 最終投稿日 asc
SQL

Checking query status...
