Users eligible to vote on skwiki

SQL

USE skwiki_p;

-- https://sk.wikipedia.org/wiki/Wikip%C3%A9dia:Pravidl%C3%A1/Hlasovanie

-- SELECT @t := now();
SELECT @t := '2019-07-08 22:01:00';
-- SELECT @t := '2015-11-09 11:08:00';

SELECT
    user_name, user_registration, user_editcount
  FROM
    user
  WHERE
    (user_registration IS NULL OR user_registration < DATE_FORMAT(DATE_SUB(@t, INTERVAL 2 MONTH), '%Y%m%d%H%i%s')) AND
      -- 2a) Je zaregistrovaný vo Wikipédii minimálne po dobu dvoch kalendárnych mesiacov.
      -- user.user_registration are NULL for users registered before 2005-12-22
    user_editcount >= 200 AND
      -- trivial required condition, minimizing number of rows
    user_id IN (SELECT DISTINCT actor_user FROM revision r, actor a WHERE a.actor_id = r.rev_actor AND r.rev_timestamp >= DATE_FORMAT(DATE_SUB(@t, INTERVAL 2 MONTH), '%Y%m%d%H%i%s') AND r.rev_timestamp < DATE_FORMAT(@t, '%Y%m%d%H%i%s') GROUP BY actor_user HAVING count(*) >= 50) AND
      -- 2b) Vykonal minimálne 50 úprav vo Wikipédii za posledné dva mesiace pred začiatkom hlasovania.
    user_id IN (SELECT DISTINCT actor_user FROM revision r, actor a, page p WHERE p.page_id = r.rev_page AND a.actor_id = r.rev_actor AND p.page_namespace = 0 AND r.rev_timestamp < DATE_FORMAT(@t, '%Y%m%d%H%i%s') GROUP BY actor_user HAVING count(*) >= 200) AND
      -- 2c) Vykonal minimálne 200 úprav v hlavnom mennom priestore pred začiatkom hlasovania.
    user_id NOT IN (SELECT ug_user FROM user_groups WHERE ug_group = 'bot') AND
      -- excluding bots
    user_name NOT IN ('CommonsDelinker')
      -- excluding non-flagged bots
  ORDER BY
    user_name
  ;
SQL

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