Category ancestors cycles

This query is marked as a draft This query has been published by EqJjgOa8rVvsRmZL.

SQL

select count(*) from category where cat_subcats = 0;

select count(distinct cl_to) from categorylinks
join page on cl_from = page_id and page_namespace = 14
where page_title in (select cat_title from category where cat_subcats = 0);


/*
select page_title, cl_to from categorylinks
join page on cl_from = page_id and page_namespace = 14
where cl_to not in (select cat_title from category where cat_subcats > 0)
*/

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