SELECT
            sum(r[1]) AS r1,
            sum(r[2]) AS r2
        FROM
        (
        WITH subtractDays(toDate('2021-01-19'), 1) AS day
        SELECT
            retention(toDate(created) = day,
            toDate(created) = '2021-01-19'
        ) AS r
        FROM user_action_logs
        WHERE toDate(created) IN(day, '2021-01-19')
        GROUP BY member_id
        )
---------------------------
CREATE TABLE visits (
	time DateTime,
	visits NESTED (
		a String,
		btime Int64,
		c String,
		e String
	)
) ENGINE = Memory;