Part 2 - Quarry

SQL

select count(*)
from user
join actor_logging
  on actor_user = user_id
left join logging_userindex
  on log_actor = actor_id
  and log_type = 'newusers'
  and log_action in ('create', 'autocreate') -- creating main account
  and log_timestamp < '20200712000000' -- occured 3 or more months prior to nomination start date
join 
(
  select
    actor_user,
    count(*) cnt
  from revision_userindex
  join actor_revision
    on rev_actor = actor_id
  join page
    on page_id = rev_page
  where
    page_namespace = 0
    and rev_timestamp < '20201012000000' -- edits prior to nomination start date
  group by actor_user
  having count(*) >= 500
) fivehundred -- at least 500 edits in main namspace
  on user_id = fivehundred.actor_user
order by user_name
SQL

Checking query status...
