SQL
AخA
SELECT concat(YEAR(rf.rev_timestamp) , '_', MONTH(rf.rev_timestamp)) as date, avg(page_len)
FROM ukwiki_p.page p
LEFT JOIN revision rf ON rf.rev_page = p.page_id
WHERE
rf.rev_parent_id = 0 and
page_namespace=0
and page_is_redirect=0
and
rev_timestamp between '20221231235959' and '20231231225959'
GROUP BY
date
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