Centralize empty talk pages of redirect

SQL

/*
select page_title, rd_title from page join redirect on rd_from = page_id and rd_namespace = 0
where page_namespace = 0 and page_is_redirect = 1
and page_title in (select page_title from page where page_namespace = 1 and page_is_redirect = 0 and page_len = 0)
and rd_title in (select page_title from page where page_namespace = 1 and page_is_redirect = 0)
*/
/*
select count(*) from page where page_namespace = 1 and page_is_redirect = 0 and page_len = 0
and page_title in (select page_title from page where page_namespace = 0 and page_is_redirect = 1)
*/
select count(*) from protected_titles where pt_namespace = 1 limit 1;
SQL

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