Articles with talk pages that have been assigned to WikiProjects

Part of a plan to assign articles to WikiProjects using Naive Bayes. Detects only pages w/talk pages that have been assigned to WikiProjects.

Still being worked on. 

Older version of this query that did 1/100 of the article space:

Executed in 78.19 seconds as of Wed, 15 Mar 2023 14:13:29 UTC,  Resultset (61075 rows) 

For 1/10 of the article space:

Executed in 634.59 seconds as of Wed, 15 Mar 2023 14:16:55 UTC Resultset (609869 rows)

Suggests about 2 hours for the whole article space... let's try it

Executed in 5683.80 seconds as of Wed, 15 Mar 2023 14:34:20 UTC. Resultset (6102031 rows) 

Note that loading the 6102031 row resultset into this web page severely taxes your web browser.

SQL

SELECT
  article.page_id,
  talk.page_id
  -- REGEXP_EXTRACT(talkcats.cl_to, '(?WikiProject_|.*_importance_|.*_priority_|Unassessed)(.*)'), -- does not work
FROM
  page AS article
  INNER JOIN page AS talk ON talk.page_title = article.page_title
  INNER JOIN categorylinks AS pagecats ON pagecats.cl_from = article.page_id
  INNER JOIN categorylinks AS talkcats ON talkcats.cl_from = talk.page_id
WHERE
  article.page_id % 1000 = 816
  AND article.page_namespace = 0
  AND talk.page_namespace = 1
  AND article.page_is_redirect = 0
  AND talk.page_is_redirect = 0
  AND (
        talkcats.cl_to LIKE "%WikiProject_%"
        OR talkcats.cl_to LIKE "%-Class_%_articles"
        OR talkcats.cl_to LIKE "%-importance_%_articles"
        OR talkcats.cl_to LIKE "%-priority_%_articles"
        OR talkcats.cl_to LIKE "Unassessed_%_articles"
      )  
  AND NOT (
            talkcats.cl_to LIKE "%vital%"
            OR talkcats.cl_to LIKE "%Version%"
  )
  AND NOT (pagecats.cl_to LIKE "%Disambig%" OR pagecats.cl_to LIKE "%disambig%" OR pagecats.cl_to LIKE "%set_index%" OR pagecats.cl_to LIKE "Set_index%")
  AND NOT (talkcats.cl_to LIKE "%Disambig%" OR talkcats.cl_to LIKE "%disambig%")
  AND NOT (pagecats.cl_to LIKE "Short_description%" 
           OR pagecats.cl_to LIKE "%_errors%"
           OR pagecats.cl_to LIKE "CS1_%"           
           OR pagecats.cl_to LIKE "%short_description%"
           OR pagecats.cl_to LIKE "%articles%"
           OR pagecats.cl_to LIKE "Articles%"
           OR pagecats.cl_to LIKE "%pages%"
           OR pagecats.cl_to LIKE "%disputes%"
           OR pagecats.cl_to LIKE "Pages%"
           OR pagecats.cl_to LIKE "Use_dmy_date%"
           OR pagecats.cl_to LIKE "%Wikipedia%"
           OR pagecats.cl_to LIKE "%articles%"
           OR pagecats.cl_to LIKE "%Articles%"
           OR pagecats.cl_to LIKE "%Wikidata%"
           OR pagecats.cl_to LIKE "Webarchive%")
LIMIT 200

SQL

Checking query status...