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https://github.com/GreptimeTeam/greptimedb.git
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7323e9b36f
* feat: change Range Query’s default align behavior to 1970-01-01 00:00:00 aware of timezone * test: test with +23:00 timezone
43 lines
1.5 KiB
SQL
43 lines
1.5 KiB
SQL
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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INSERT INTO TABLE host VALUES
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("2024-01-23T22:30:00+00:00", 'host1', 0),
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("2024-01-23T23:30:00+00:00", 'host1', 1),
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("2024-01-24T22:30:00+00:00", 'host1', 2),
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("2024-01-24T23:30:00+00:00", 'host1', 3),
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("2024-01-23T22:30:00+00:00", 'host2', 4),
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("2024-01-23T23:30:00+00:00", 'host2', 5),
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("2024-01-24T22:30:00+00:00", 'host2', 6),
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("2024-01-24T23:30:00+00:00", 'host2', 7);
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SELECT ts, host, min(val) RANGE '1d' FROM host ALIGN '1d' ORDER BY host, ts;
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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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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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SELECT ts, host, min(val) RANGE '1d' FROM host ALIGN '1d' TO '2024-01-23T00:00:00+01:00' ORDER BY host, ts;
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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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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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--- ALIGN TO with time zone ---
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set time_zone='Asia/Shanghai';
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---- align to 'Asia/Shanghai' unix epoch 0 ----
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SELECT ts, host, min(val) RANGE '1d' FROM host ALIGN '1d' ORDER BY host, ts;
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set time_zone='+23:00';
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---- align to '+23:00' unix epoch 0 ----
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SELECT ts, host, min(val) RANGE '1d' FROM host ALIGN '1d' ORDER BY host, ts;
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set time_zone='UTC';
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DROP TABLE host;
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