ClickHouse/tests/queries/0_stateless/02713_sequence_match_serialization_fix.sql

DROP TABLE IF EXISTS 02713_seqt;
DROP TABLE IF EXISTS 02713_seqt_distr;

SELECT
    'serialized state is not used', sequenceMatch('(?1)(?2)')(time, number_ = 1, number_ = 0) AS seq
FROM
(
    SELECT
        number AS time,
        number % 2 AS number_
    FROM numbers_mt(100)
);


CREATE TABLE 02713_seqt
ENGINE = MergeTree
ORDER BY n AS
SELECT
    sequenceMatchState('(?1)(?2)')(time, number_ = 1, number_ = 0) AS seq,
    1 AS n
FROM
(
    SELECT
        number AS time,
        number % 2 AS number_
    FROM numbers_mt(100)
);


SELECT 'serialized state is used', sequenceMatchMerge('(?1)(?2)')(seq) AS seq
FROM 02713_seqt;


CREATE TABLE 02713_seqt_distr ( seq AggregateFunction(sequenceMatch('(?1)(?2)'), UInt64, UInt8, UInt8) , n UInt8) ENGINE = Distributed(test_shard_localhost, currentDatabase(), '02713_seqt');

SELECT 'via Distributed', sequenceMatchMerge('(?1)(?2)')(seq) AS seq FROM 02713_seqt_distr;