WITH
    x AS
    (
        SELECT number
        FROM numbers(10)
    ),
    cross_sales AS
    (
        SELECT 1 AS xx
        FROM
        x,
        x AS d1,
        x AS d2,
        x AS d3,
        x AS d4,
        x AS d5,
        x AS d6,
        x AS d7,
        x AS d8,
        x AS d9
        WHERE x.number = d9.number
    )
SELECT xx
FROM
cross_sales
WHERE xx = 2000