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https://github.com/GreptimeTeam/greptimedb.git
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35898f0b2e
* tests: more flow testcase * tests(WIP): more tests * tests: more flow tests * test: wired regex for sqlness * refactor: put blog&example to two files
107 lines
2.2 KiB
Plaintext
107 lines
2.2 KiB
Plaintext
-- blog usecase
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CREATE TABLE velocity (
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ts TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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left_wheel FLOAT,
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right_wheel FLOAT,
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TIME INDEX(ts)
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);
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Affected Rows: 0
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CREATE TABLE avg_speed (
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avg_speed DOUBLE,
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start_window TIMESTAMP TIME INDEX,
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end_window TIMESTAMP,
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update_at TIMESTAMP,
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);
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Affected Rows: 0
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CREATE FLOW calc_avg_speed SINK TO avg_speed AS
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SELECT
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avg((left_wheel + right_wheel) / 2)
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FROM
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velocity
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WHERE
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left_wheel > 0.5
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AND right_wheel > 0.5
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AND left_wheel < 60
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AND right_wheel < 60
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GROUP BY
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tumble(ts, '5 second');
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Affected Rows: 0
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INSERT INTO
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velocity
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VALUES
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("2021-07-01 00:00:00.200", 0.0, 0.7),
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("2021-07-01 00:00:00.200", 0.0, 61.0),
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("2021-07-01 00:00:02.500", 2.0, 1.0,);
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Affected Rows: 3
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-- SQLNESS REPLACE (ADMIN\sFLUSH_FLOW\('\w+'\)\s+\|\n\+-+\+\n\|\s+)[0-9]+\s+\| $1 FLOW_FLUSHED |
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ADMIN FLUSH_FLOW('calc_avg_speed');
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+------------------------------------+
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| ADMIN FLUSH_FLOW('calc_avg_speed') |
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+------------------------------------+
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| FLOW_FLUSHED |
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+------------------------------------+
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SELECT
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avg_speed,
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start_window
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FROM
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avg_speed;
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+-----------+---------------------+
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| avg_speed | start_window |
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+-----------+---------------------+
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| 1.5 | 2021-07-01T00:00:00 |
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+-----------+---------------------+
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INSERT INTO
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velocity
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VALUES
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("2021-07-01 00:00:05.100", 5.0, 4.0),
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("2021-07-01 00:00:09.600", 2.3, 2.1);
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Affected Rows: 2
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-- SQLNESS REPLACE (ADMIN\sFLUSH_FLOW\('\w+'\)\s+\|\n\+-+\+\n\|\s+)[0-9]+\s+\| $1 FLOW_FLUSHED |
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ADMIN FLUSH_FLOW('calc_avg_speed');
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+------------------------------------+
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| ADMIN FLUSH_FLOW('calc_avg_speed') |
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+------------------------------------+
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| FLOW_FLUSHED |
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+------------------------------------+
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SELECT
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avg_speed,
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start_window
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FROM
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avg_speed;
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+--------------------+---------------------+
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| avg_speed | start_window |
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+--------------------+---------------------+
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| 1.5 | 2021-07-01T00:00:00 |
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| 3.3499999046325684 | 2021-07-01T00:00:05 |
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+--------------------+---------------------+
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DROP FLOW calc_avg_speed;
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Affected Rows: 0
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DROP TABLE velocity;
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Affected Rows: 0
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DROP TABLE avg_speed;
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Affected Rows: 0
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