SET @username = 'Areaseven';

​

WITH ns(ns_n, ns_s) AS (VALUES (-2, 'Media:'), (-1, 'Special:'), (0, ''), (1, 'Talk:'), (2, 'User:'), (3, 'User talk:'), (4,

  'Wikipedia:'), (5, 'Wikipedia talk:'), (6, ':File:'), (7, 'File talk:'), (8, 'MediaWiki:'), (9, 'MediaWiki talk:'), (10, 'Template:'),

  (11, 'Template talk:'), (12, 'Help:'), (13, 'Help talk:'), (14, ':Category:'), (15, 'Category talk:'), (100, 'Portal:'), (101,

  'Portal talk:'), (118, 'Draft:'), (119, 'Draft talk:'), (126, 'MOS:'), (127, 'MOS talk:'), (710, 'TimedText:'), (711, 'TimedText talk:'),

  (828, 'Module:'), (829, 'Module talk:')),

normal_entries (n_ts, n_namespace, n_title, n_exists, n_create_comment, n_del_comments) AS

(

  SELECT crl.log_timestamp,

         crl.log_namespace,

         crl.log_title,

         EXISTS(SELECT 1 FROM page WHERE page_namespace = crl.log_namespace AND page_title = crl.log_title),

         crc.comment_text,

         GROUP_CONCAT(CONCAT(del.log_action, ':', delc.comment_text) SEPARATOR ' // ')

  FROM logging_userindex AS crl

  JOIN actor_logging ON actor_id = log_actor

  JOIN comment_logging AS crc ON crc.comment_id = crl.log_comment_id

  JOIN logging_logindex del

    ON del.log_namespace = crl.log_namespace

   AND del.log_title = crl.log_title

   AND del.log_type = 'delete'

   AND del.log_action != 'restore'

   AND del.log_timestamp > crl.log_timestamp

  JOIN comment_logging AS delc ON delc.comment_id = del.log_comment_id

  WHERE crl.log_type = 'create'

    AND actor_name = @username

  GROUP BY crl.log_timestamp, crl.log_namespace

),

halfbaked AS

(

SELECT * FROM normal_entries

UNION

SELECT log_timestamp,

       log_namespace,

       log_title,

       0,

       comment_text,

       NULL

FROM logging_userindex

JOIN actor_logging ON actor_id = log_actor

JOIN comment_logging ON comment_id = log_comment_id

LEFT JOIN page ON page_namespace = log_namespace AND page_title = log_title

LEFT JOIN normal_entries ON n_namespace = log_namespace AND n_title = log_title

WHERE log_type = 'create'

  AND actor_name = @username

  AND page_id IS NULL

  AND n_ts IS NULL

ORDER BY n_ts ASC

)

SELECT n_ts,

       CONCAT(COALESCE(ns_s, '?:'), n_title) AS title,

       n_exists,

       n_create_comment,

       n_del_comments

FROM halfbaked

LEFT JOIN ns ON ns_n = n_namespace;

​