Category transitive closure

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

SQL

WITH cat_pages AS (
	SELECT * FROM page
  	WHERE page_namespace=14
)

# WITH page_hierarchy_1 AS (
  SELECT * #(cl_from, page_id)
  FROM categorylinks
  INNER JOIN cat_pages ON cl_to=page_title
  LIMIT 30;
#)

# WITH page_hierarchy(child_page_id, parent_page_id) AS (
#	SELECT ..
#  	FROM page_hierarchy JOIN page_hierarchy_1 ON page_hierarchy_1.child_page_id=
#)

#SELECT *
#FROM page_hierarchy_1
#LIMIT 30;

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