2021 Pacific typhoon season analysis: Zero-diff edits by user

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

Part of [[w:en:User:Chlod/Analysis/2021 Pacific typhoon season]].

SQL

SET @page = "2021 Pacific typhoon season";

SELECT
    rev_id,
    @prev_rev_id = LAG(rev_id, 1) OVER (ORDER BY rev_id),
    rev_len,
    (SELECT rev_len FROM revision WHERE rev_id = @prev_rev_id) as prev_rev_len,
    (rev_len - prev_rev_len) as `diff`
FROM revision
WHERE 
    rev_page = (SELECT page_id FROM page WHERE page_namespace = 0 AND page_title = REPLACE(@page, " ", "_"))
ORDER BY rev_timestamp

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