Recursion on categorylinks

SQL

/*
select count(distinct page_namespace, page_title) from categorylinks, page
where page_id = cl_from and cl_to = 'Set_index_articles_on_storms' and cl_type = 'page' and page_namespace != 14;
*/

with recursive catpage as (
  (select page.page_namespace, page.page_title from categorylinks, page
  where categorylinks.cl_to = 'History-related_lists' and page.page_id = categorylinks.cl_from)
  union all
  (select page.page_namespace, page.page_title from catpage, categorylinks, page
  where catpage.page_namespace = 14 and categorylinks.cl_to = catpage.page_title and page.page_id = categorylinks.cl_from)
)

select count(distinct page_namespace, page_title) from catpage where page_namespace != 14;
SQL

Checking query status...
