Deleted portal subpages where the base page exists - Quarry

This query is marked as a draft This query has been published by Cryptic.

All portal subpages that have at least one deleted revision, where the base portal page exists.

For [[Wikipedia talk:WikiProject Portals#Identifying old-style portals]] circa 11 April 2019.

SQL

SELECT DISTINCT
    CONCAT('[[Portal:', page_title, ']]') AS 'Existing base pagename',
    CONCAT('[[Portal:', ar_title, ']]') AS 'Deleted pagename',
    page_is_redirect
FROM archive
JOIN page
    ON page_namespace = 100 -- Portal:
    AND page_title = REGEXP_REPLACE(ar_title, '/.*', '')
WHERE ar_namespace = 100
    AND ar_title LIKE '%/%';

​x
 
SELECT DISTINCT    CONCAT('[[Portal:', page_title, ']]') AS 'Existing base pagename',    CONCAT('[[Portal:', ar_title, ']]') AS 'Deleted pagename',    page_is_redirectFROM archiveJOIN page    ON page_namespace = 100 -- Portal:    AND page_title = REGEXP_REPLACE(ar_title, '/.*', '')WHERE ar_namespace = 100    AND ar_title LIKE '%/%';​

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