mirror of
https://github.com/GreptimeTeam/greptimedb.git
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806400caff
* feat: add align to / interval support in range query * chore: fix ci * chore: simplify `parse_duration_expr` * chore: change s to ms
100 lines
5.2 KiB
Plaintext
100 lines
5.2 KiB
Plaintext
CREATE TABLE host (
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ts timestamp(3) time index,
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host STRING PRIMARY KEY,
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val BIGINT,
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);
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Affected Rows: 0
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INSERT INTO TABLE host VALUES
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("1970-01-01T23:30:00+00:00", 'host1', 0),
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("1970-01-01T22:30:00+00:00", 'host1', 1),
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("1970-01-02T23:30:00+00:00", 'host1', 2),
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("1970-01-02T22:30:00+00:00", 'host1', 3),
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("1970-01-01T23:30:00+00:00", 'host2', 4),
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("1970-01-01T22:30:00+00:00", 'host2', 5),
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("1970-01-02T23:30:00+00:00", 'host2', 6),
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("1970-01-02T22:30:00+00:00", 'host2', 7);
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Affected Rows: 8
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SELECT ts, host, min(val) RANGE '1d' FROM host ALIGN '1d' ORDER BY host, ts;
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+---------------------+-------+----------------------------------+
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| ts | host | MIN(host.val) RANGE 1d FILL NULL |
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+---------------------+-------+----------------------------------+
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| 1970-01-02T00:00:00 | host1 | 0 |
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| 1970-01-03T00:00:00 | host1 | 2 |
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| 1970-01-02T00:00:00 | host2 | 4 |
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| 1970-01-03T00:00:00 | host2 | 6 |
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+---------------------+-------+----------------------------------+
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SELECT ts, host, min(val) RANGE '1d' FROM host ALIGN '1d' TO CALENDAR ORDER BY host, ts;
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+---------------------+-------+----------------------------------+
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| ts | host | MIN(host.val) RANGE 1d FILL NULL |
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+---------------------+-------+----------------------------------+
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| 1970-01-02T00:00:00 | host1 | 0 |
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| 1970-01-03T00:00:00 | host1 | 2 |
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| 1970-01-02T00:00:00 | host2 | 4 |
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| 1970-01-03T00:00:00 | host2 | 6 |
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+---------------------+-------+----------------------------------+
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SELECT ts, host, min(val) RANGE '1d' FROM host ALIGN '1d' TO UNKNOWN ORDER BY host, ts;
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Error: 3000(PlanQuery), DataFusion error: Error during planning: Illegal `align to` argument `UNKNOWN` in range select query, can't be parse as NOW/CALENDAR/Timestamp, error: Failed to parse a string into Timestamp, raw string: UNKNOWN
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SELECT ts, host, min(val) RANGE '1d' FROM host ALIGN '1d' TO '1900-01-01T00:00:00+01:00' ORDER BY host, ts;
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+---------------------+-------+----------------------------------+
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| ts | host | MIN(host.val) RANGE 1d FILL NULL |
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+---------------------+-------+----------------------------------+
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| 1970-01-01T23:00:00 | host1 | 1 |
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| 1970-01-02T23:00:00 | host1 | 0 |
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| 1970-01-03T23:00:00 | host1 | 2 |
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| 1970-01-01T23:00:00 | host2 | 5 |
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| 1970-01-02T23:00:00 | host2 | 4 |
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| 1970-01-03T23:00:00 | host2 | 6 |
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+---------------------+-------+----------------------------------+
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SELECT ts, host, min(val) RANGE '1d' FROM host ALIGN '1d' TO '1970-01-01T00:00:00+01:00' ORDER BY host, ts;
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+---------------------+-------+----------------------------------+
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| ts | host | MIN(host.val) RANGE 1d FILL NULL |
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+---------------------+-------+----------------------------------+
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| 1970-01-01T23:00:00 | host1 | 1 |
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| 1970-01-02T23:00:00 | host1 | 0 |
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| 1970-01-03T23:00:00 | host1 | 2 |
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| 1970-01-01T23:00:00 | host2 | 5 |
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| 1970-01-02T23:00:00 | host2 | 4 |
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| 1970-01-03T23:00:00 | host2 | 6 |
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+---------------------+-------+----------------------------------+
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SELECT ts, host, min(val) RANGE '1d' FROM host ALIGN '1d' TO '2023-01-01T00:00:00+01:00' ORDER BY host, ts;
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+---------------------+-------+----------------------------------+
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| ts | host | MIN(host.val) RANGE 1d FILL NULL |
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+---------------------+-------+----------------------------------+
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| 1970-01-01T23:00:00 | host1 | 1 |
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| 1970-01-02T23:00:00 | host1 | 0 |
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| 1970-01-03T23:00:00 | host1 | 2 |
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| 1970-01-01T23:00:00 | host2 | 5 |
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| 1970-01-02T23:00:00 | host2 | 4 |
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| 1970-01-03T23:00:00 | host2 | 6 |
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+---------------------+-------+----------------------------------+
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SELECT ts, min(val) RANGE (INTERVAL '1' day) FROM host ALIGN (INTERVAL '1' day) TO '1900-01-01T00:00:00+01:00' by (1) ORDER BY ts;
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+---------------------+----------------------------------------------------------------------------+
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| ts | MIN(host.val) RANGE IntervalMonthDayNano("18446744073709551616") FILL NULL |
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+---------------------+----------------------------------------------------------------------------+
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| 1970-01-01T23:00:00 | 1 |
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| 1970-01-02T23:00:00 | 0 |
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| 1970-01-03T23:00:00 | 2 |
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+---------------------+----------------------------------------------------------------------------+
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DROP TABLE host;
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Affected Rows: 0
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