Rolling number of edits (7 days) on cswiki

SQL

use cswiki_p;
set @begin = '20150101000000', @end = '20160101000000';
select date, count(*) as edits from (
  select date(date_add(rev_timestamp, interval 2 hour)) as date from revision left join user_groups on rev_user = ug_user and ug_group = 'bot' where ug_user is null and rev_timestamp between 0+date_sub(date_sub(@begin, interval 2 hour), interval 6 day) and 0+date_sub(date_sub(@end, interval 2 hour), interval 1 second)
  union all
  select date_add(date(date_add(rev_timestamp, interval 2 hour)), interval 1 day) as date from revision left join user_groups on rev_user = ug_user and ug_group = 'bot' where ug_user is null and rev_timestamp between 0+date_sub(date_sub(@begin, interval 2 hour), interval 6 day) and 0+date_sub(date_sub(@end, interval 2 hour), interval 1 second)
  union all
  select date_add(date(date_add(rev_timestamp, interval 2 hour)), interval 2 day) as date from revision left join user_groups on rev_user = ug_user and ug_group = 'bot' where ug_user is null and rev_timestamp between 0+date_sub(date_sub(@begin, interval 2 hour), interval 6 day) and 0+date_sub(date_sub(@end, interval 2 hour), interval 1 second)
  union all
  select date_add(date(date_add(rev_timestamp, interval 2 hour)), interval 3 day) as date from revision left join user_groups on rev_user = ug_user and ug_group = 'bot' where ug_user is null and rev_timestamp between 0+date_sub(date_sub(@begin, interval 2 hour), interval 6 day) and 0+date_sub(date_sub(@end, interval 2 hour), interval 1 second)
  union all
  select date_add(date(date_add(rev_timestamp, interval 2 hour)), interval 4 day) as date from revision left join user_groups on rev_user = ug_user and ug_group = 'bot' where ug_user is null and rev_timestamp between 0+date_sub(date_sub(@begin, interval 2 hour), interval 6 day) and 0+date_sub(date_sub(@end, interval 2 hour), interval 1 second)
  union all
  select date_add(date(date_add(rev_timestamp, interval 2 hour)), interval 5 day) as date from revision left join user_groups on rev_user = ug_user and ug_group = 'bot' where ug_user is null and rev_timestamp between 0+date_sub(date_sub(@begin, interval 2 hour), interval 6 day) and 0+date_sub(date_sub(@end, interval 2 hour), interval 1 second)
  union all
  select date_add(date(date_add(rev_timestamp, interval 2 hour)), interval 6 day) as date from revision left join user_groups on rev_user = ug_user and ug_group = 'bot' where ug_user is null and rev_timestamp between 0+date_sub(date_sub(@begin, interval 2 hour), interval 6 day) and 0+date_sub(date_sub(@end, interval 2 hour), interval 1 second)
) as aweek group by date having date between date(@begin) and date_sub(date(@end), interval 1 day) order by date;
SQL

Checking query status...
