Untitled query #83224

SQL

WITH months AS (
    SELECT 1 AS month UNION
    SELECT 2 UNION
    SELECT 3 UNION
    SELECT 4 UNION
    SELECT 5 UNION
    SELECT 6 UNION
    SELECT 7 UNION
    SELECT 8 UNION
    SELECT 9 UNION
    SELECT 10 UNION
    SELECT 11 UNION
    SELECT 12
),
years AS (
    SELECT DISTINCT YEAR(rev_timestamp) AS year, rev_page
    FROM revision
  	#JOIN page ON rev_page = page_id
    #WHERE page_is_new = 1
),
months_years AS (
    SELECT month, year
    FROM months
    CROSS JOIN years
),
revisions AS (
    SELECT 
        COUNT(DISTINCT rev_id) AS count,
        MONTH(rev_timestamp) AS month,
        YEAR(rev_timestamp) AS year
    FROM revision
    JOIN page ON rev_page = page_id
    WHERE page_is_new = 1
    GROUP BY YEAR(rev_timestamp), MONTH(rev_timestamp)
)
SELECT 
    my.year,
    my.month,
    COALESCE(r.count, 0) AS count
FROM 
    months_years my
LEFT JOIN 
    revisions r
ON 
    my.year = r.year AND my.month = r.month
ORDER BY 
    my.year, my.month;
SQL

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