sumArray

CREATE TABLE daily_category_sales
(
    date Date,
    category_sales Array(UInt32)
) ENGINE = Memory;

INSERT INTO daily_category_sales VALUES
    ('2024-01-01', [100, 200, 150]),
    ('2024-01-02', [120, 180, 160]),
    ('2024-01-03', [90, 220, 140]);

SELECT 
    date,
    category_sales,
    sumArray(category_sales) AS total_sales_sumArray,
    sum(arraySum(category_sales)) AS total_sales_arraySum
FROM daily_category_sales
GROUP BY date, category_sales;