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

SQL

x
 
use ptwiki_p;
select gender, count(*) from revision r, (select  user_id, if(up_value IS NULL ,"none",up_value) as gender from user left outer join (select * from user_properties where up_property = "gender") g on user_id = up_user) g where r.rev_user = g.user_id;
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