externallinks query w/readable urls w/regexp replace

Fork of externallinks query w/readable urls w/regexp replace by Cryptic

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

Example query of how to turn externallinks' new fields into normal urls, relying on regexp_replace() instead of the more roundabout method in query 77231.

For [[WP:RAQ#external links -- el_to]] circa 12 October 2023.

SQL

SELECT page_title,
       page_namespace,
       CONCAT(REGEXP_REPLACE(el_to_domain_index,
                             '^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\\-]*[a-zA-Z0-9])[.])*$',
                             '\\1\\9\\8\\7\\6\\5\\4\\3\\2'),
              el_to_path) AS url
FROM externallinks
JOIN page ON page_id = el_from
WHERE el_to_domain_index LIKE 'https://nl.kb.%' OR el_to_domain_index LIKE 'http://nl.kb.%';

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