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https://github.com/GreptimeTeam/greptimedb.git
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44 lines
1.5 KiB
SQL
44 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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(0, 'host1', 0),
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(5000, 'host1', null),
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(10000, 'host1', 1),
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(15000, 'host1', null),
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(20000, 'host1', 2),
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(0, 'host2', 3),
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(5000, 'host2', null),
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(10000, 'host2', 4),
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(15000, 'host2', null),
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(20000, 'host2', 5);
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-- Test range expr calculate
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SELECT ts, host, covar(val::DOUBLE, val::DOUBLE) RANGE '20s' FROM host ALIGN '10s' ORDER BY host, ts;
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SELECT ts, host, 2 * min(val) RANGE '5s' FROM host ALIGN '5s' ORDER BY host, ts;
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SELECT ts, host, min(val * 2) RANGE '5s' FROM host ALIGN '5s' ORDER BY host, ts;
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SELECT ts, host, min(val::DOUBLE) RANGE '5s' FROM host ALIGN '5s' ORDER BY host, ts;
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SELECT ts, host, min(floor(val::DOUBLE)) RANGE '5s' FROM host ALIGN '5s' ORDER BY host, ts;
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SELECT ts, host, floor(min(val) RANGE '5s') FROM host ALIGN '5s' ORDER BY host, ts;
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-- Test complex range expr calculate
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SELECT ts, host, (min(val) + max(val)) RANGE '20s' + 1.0 FROM host ALIGN '10s' ORDER BY host, ts;
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SELECT ts, host, covar(ceil(val::DOUBLE), floor(val::DOUBLE)) RANGE '20s' FROM host ALIGN '10s' ORDER BY host, ts;
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SELECT ts, host, floor(cos(ceil(sin(min(val) RANGE '5s')))) FROM host ALIGN '5s' ORDER BY host, ts;
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SELECT ts, host, gcd(CAST(max(floor(val::DOUBLE)) RANGE '10s' FILL PREV as INT64) * 4, max(val * 4) RANGE '10s' FILL PREV) * length(host) + 1 FROM host ALIGN '5s' ORDER BY host, ts;
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DROP TABLE host;
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