ClickHouse/tests/performance/avg.xml

<test>
    <query>SELECT avg(number) FROM numbers(1000000000)</query>
    <query>SELECT avg(number::Float64) FROM numbers(1000000000)</query>
    <query>SELECT avg(number::Nullable(Float64)) FROM numbers(100000000)</query>

    <query>
        SELECT avgIf(key, key != -1)
        FROM
        (
            SELECT materialize(1) AS key
            FROM numbers(100000000)
        )
    </query>

    <query>
        SELECT avgIf(key, key != -1)
        FROM
        (
            SELECT materialize(toNullable(1)) AS key
            FROM numbers(100000000)
        )
    </query>

    <query>
        SELECT avg(key)
        FROM
        (
            SELECT materialize(toNullable(1)) AS key
            FROM numbers(100000000)
        )
    </query>
</test>