ClickHouse/tests/queries/0_stateless/02516_projections_with_rollup.sql

DROP TABLE IF EXISTS video_log;
DROP TABLE IF EXISTS video_log_result__fuzz_0;
DROP TABLE IF EXISTS rng;

CREATE TABLE video_log
(
    `datetime` DateTime,
    `user_id` UInt64,
    `device_id` UInt64,
    `domain` LowCardinality(String),
    `bytes` UInt64,
    `duration` UInt64
)
ENGINE = MergeTree
PARTITION BY toDate(datetime)
ORDER BY (user_id, device_id);

CREATE TABLE video_log_result__fuzz_0
(
    `hour` Nullable(DateTime),
    `sum_bytes` UInt64,
    `avg_duration` Float64
)
ENGINE = MergeTree
PARTITION BY toDate(hour)
ORDER BY sum_bytes
SETTINGS allow_nullable_key = 1;

CREATE TABLE rng
(
    `user_id_raw` UInt64,
    `device_id_raw` UInt64,
    `domain_raw` UInt64,
    `bytes_raw` UInt64,
    `duration_raw` UInt64
)
ENGINE = GenerateRandom(1024);

INSERT INTO video_log SELECT
    toUnixTimestamp('2022-07-22 01:00:00') + (rowNumberInAllBlocks() / 20000),
    user_id_raw % 100000000 AS user_id,
    device_id_raw % 200000000 AS device_id,
    domain_raw % 100,
    (bytes_raw % 1024) + 128,
    (duration_raw % 300) + 100
FROM rng
LIMIT 1728000;

INSERT INTO video_log SELECT
    toUnixTimestamp('2022-07-22 01:00:00') + (rowNumberInAllBlocks() / 20000),
    user_id_raw % 100000000 AS user_id,
    100 AS device_id,
    domain_raw % 100,
    (bytes_raw % 1024) + 128,
    (duration_raw % 300) + 100
FROM rng
LIMIT 10;

ALTER TABLE video_log
    ADD PROJECTION p_norm
    (
        SELECT 
            datetime,
            device_id,
            bytes,
            duration
        ORDER BY device_id
    );

ALTER TABLE video_log
    MATERIALIZE PROJECTION p_norm
SETTINGS mutations_sync = 1;

ALTER TABLE video_log
    ADD PROJECTION p_agg
    (
        SELECT 
            toStartOfHour(datetime) AS hour,
            domain,
            sum(bytes),
            avg(duration)
        GROUP BY 
            hour,
            domain
    );

ALTER TABLE video_log
    MATERIALIZE PROJECTION p_agg
SETTINGS mutations_sync = 1;

-- We are not interested in the result of this query, but it should not produce a logical error.
SELECT
    avg_duration1,
    avg_duration1 = avg_duration2
FROM
(
    SELECT
        sum(bytes),
        hour,
        toStartOfHour(datetime) AS hour,
        avg(duration) AS avg_duration1
    FROM video_log
    GROUP BY hour
        WITH ROLLUP
        WITH TOTALS
)
LEFT JOIN
(
    SELECT
        hour,
        sum_bytes AS sum_bytes2,
        avg_duration AS avg_duration2
    FROM video_log_result__fuzz_0
) USING (hour)
SETTINGS joined_subquery_requires_alias = 0
FORMAT Null;

DROP TABLE video_log;
DROP TABLE video_log_result__fuzz_0;
DROP TABLE rng;