statement-20.sql


CREATE MATERIALIZED VIEW analytics.mv_dau
TO analytics.dau
AS
SELECT
    account_id,
    toDate(occurred_at) AS day,
    uniqCombinedState(if(user_id != '', user_id, anonymous_id)) AS users
FROM analytics.events_raw
WHERE user_id != '' OR anonymous_id != ''
GROUP BY account_id, day;