Feature Request: Time to value historical trend

SELECT
    concat(toString(aggregation_target), '_', toString(entrance_period_start)) AS id,
    entrance_period_start AS timestamp,
    aggregation_target AS distinct_id,
    entrance_period_start,
    conversion_time AS conversion_time_seconds,
    conversion_time / 3600 AS conversion_time_hours,
    conversion_time / 86400 AS conversion_time_days
FROM
    (SELECT
        toStartOfDay(min_timestamp) AS entrance_period_start,
        breakdown,
        aggregation_target,
        arraySum(timings) AS conversion_time
    FROM
        (SELECT
            arraySort(t -> t.1, groupArray(tuple(toFloat(timestamp), uuid, '', arrayFilter(x -> notEquals(x, 0), [multiply(1, step_0), multiply(2, step_1)])))) AS events_array,
            [''] AS prop,
            min(timestamp) AS min_timestamp,
            arrayJoin(aggregate_funnel(2, 259200, 'first_touch', 'ordered', prop, [], arrayFilter((x, x_before, x_after) -> not(and(lessOrEquals(length(x.4), 1), equals(x.4, x_before.4), equals(x.4, x_after.4), equals(x.3, x_before.3), equals(x.3, x_after.3), greater(x.1, x_before.1), less(x.1, x_after.1))), events_array, arrayRotateRight(events_array, 1), arrayRotateLeft(events_array, 1)))) AS af_tuple,
            af_tuple.1 AS step_reached,
            plus(af_tuple.1, 1) AS steps,
            af_tuple.2 AS breakdown,
            af_tuple.3 AS timings,
            aggregation_target
        FROM
            (SELECT
                e.timestamp AS timestamp,
                person_id AS aggregation_target,
                e.uuid AS uuid,
                if(equals(event, '$pageview'), 1, 0) AS step_0,
                if(equals(event, '$pageview'), 1, 0) AS step_1
            FROM
                events AS e
            WHERE
                and(and(greaterOrEquals(e.timestamp, now() - INTERVAL 180 DAY), lessOrEquals(e.timestamp, now())), and(in(event, tuple('$pageview', '$pageview')), or(equals(step_0, 1), equals(step_1, 1)))))
        GROUP BY
            aggregation_target
        HAVING
            greaterOrEquals(step_reached, 0))
    WHERE
        greaterOrEquals(step_reached, 1)
        AND notEmpty(timings))
WHERE
    conversion_time >= 0
ORDER BY
    entrance_period_start ASC