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,
    LAG(rev_id, 1) OVER (ORDER BY rev_id) as "prev_rev_id",
    rev_len,
    (SELECT LAG(r1.rev_id, 1) OVER (ORDER BY r1.rev_id) as target_rev, rev_len FROM revision r2 WHERE r2.rev_id = target_rev) as "prev_rev_len",
    (`rev_len` - "prev_rev_len") as `diff`
FROM revision r1
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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