Untitled query #51476

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

SQL

use tewiki_p;
select count(*), round(avg(age)) as avg_age
from (
  select pa.page_id, 
  str_to_date(max(r.rev_timestamp), '%Y%m%d') as ts, 
  datediff(date '20210101', str_to_date(max(r.rev_timestamp), '%Y%m%d')) - 1 as age
  from page pa 
  inner join revision r on r.rev_page = pa.page_id
  where pa.page_namespace in (0, 102) and pa.page_is_redirect = 0 and
  r.rev_timestamp < '20210101'
  group by pa.page_id
) t

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