cut-and-paste - Quarry

SQL

-- Identify potential cut-and-paste move candidates (limited to 10 for testing)
WITH ArticlePairs AS (
    SELECT 
        r1.article_id AS source_article,
        r2.article_id AS destination_article,
        r1.rev_id AS source_rev_id,
        r2.rev_id AS destination_rev_id,
        r1.timestamp AS source_timestamp,
        r2.timestamp AS destination_timestamp,
        r1.content AS source_content,
        r2.content AS destination_content,
        SIMILARITY(r1.content, r2.content) AS diff_score
    FROM revisions r1
    JOIN revisions r2 ON r1.article_id != r2.article_id -- Compare different articles
    WHERE 
        SIMILARITY(r1.content, r2.content) > 0.85 -- Set a threshold for similarity
        AND TIMESTAMPDIFF(SECOND, r1.timestamp, r2.timestamp) < 3600 -- Within 1 hour
)
SELECT 
    ROW_NUMBER() OVER () AS idx, -- Index for the report
    a1.article_name AS source, -- Source article name
    ap.source_rev_id AS PreID, -- Source revision ID
    DATE_FORMAT(ap.source_timestamp, '%Y/%m/%d %H:%i:%s') AS Predate, -- Source timestamp
    a2.article_name AS destination, -- Destination article name
    ap.destination_rev_id AS PostID, -- Destination revision ID
    DATE_FORMAT(ap.destination_timestamp, '%Y/%m/%d %H:%i:%s') AS Postdate, -- Destination timestamp
    ap.diff_score AS DiffScore -- Difference score between revisions
FROM ArticlePairs ap
JOIN articles a1 ON ap.source_article = a1.article_id
JOIN articles a2 ON ap.destination_article = a2.article_id
ORDER BY ap.source_timestamp DESC
LIMIT 10; -- Limit the results to 10 pairs for testing
SQL

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