trwiki:Likely Article of the Year 2020 size criteria satisfaction

SQL

USE trwiki_p;
SELECT page_title, prev.rev_len, page_len, IFNULL(((CAST(page_len AS SIGNED)-CAST(prev.rev_len AS SIGNED))/CAST(prev.rev_len AS SIGNED)),1) as delta
FROM revision AS cur
#LEFT JOIN actor_revision ON rev_actor = actor_id
JOIN page ON cur.rev_page = page_id
LEFT JOIN revision AS prev ON prev.rev_page = cur.rev_page
    AND prev.rev_deleted=0
    #AND prev.rev_timestamp<(SELECT TIMESTAMP("2020-01-01 00:00:00"))
    AND prev.rev_timestamp = (SELECT MAX(rev_timestamp) FROM revision WHERE prev.rev_page = page_id 
                              AND rev_deleted=0
                              AND rev_parent_id = 0
                              AND page_namespace=0
                              AND rev_timestamp<(SELECT TIMESTAMP("2020-01-01 00:00:00"))
                             group by page_title)
WHERE
	cur.rev_parent_id = 0
    AND page_namespace = 0
    AND page_is_redirect=0
    AND cur.rev_deleted=0
    #AND cur.rev_timestamp <= (SELECT TIMESTAMP("2020-12-31 23:59:59"))
    #AND cur.rev_timestamp >= (SELECT TIMESTAMP("2020-01-01 00:00:00"))
	AND cur.rev_timestamp = (SELECT MAX(rev_timestamp) FROM revision WHERE cur.rev_page = page_id 
                              AND rev_deleted=0
                              AND rev_parent_id = 0
                             AND page_namespace=0
                              AND rev_timestamp <= (SELECT TIMESTAMP("2020-12-31 23:59:59"))
                             AND rev_timestamp >= (SELECT TIMESTAMP("2020-01-01 00:00:00"))
                             group by page_title)
    AND page_len>=15000
GROUP BY page_title HAVING delta>=0.3
ORDER BY page_len DESC, delta DESC, page_title ASC;
SQL

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