Most linked non-existing pages (ltwiki)

SQL

use ltwiki_p;
select now();

use ltwiki_p;
select pl.pl_title, COUNT(pl.pl_title)
from pagelinks pl
where
pl.pl_title NOT IN (Select page_title from page where page_namespace=0) and pl.pl_from_namespace=0 and pl.pl_namespace=0
and pl.pl_title NOT IN 
(
select pl_title
from pagelinks pl
left join page p on pl.pl_from=p.page_id
where 
page_namespace=10 and pl_from IN (select tl_from
from templatelinks
where
tl_from_namespace=10)
and pl_namespace=0
)
group by pl.pl_title, pl.page_len
having COUNT(pl.pl_title)>10
order by COUNT(pl.pl_title) DESC
LIMIT 1000;

SQL

Checking query status...