39 lines
1.1 KiB
SQL
39 lines
1.1 KiB
SQL
CREATE TABLE device_t (
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id SERIAL NOT NULL PRIMARY KEY,
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device_id VARCHAR(32) NOT NULL UNIQUE,
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label VARCHAR(16) NOT NULL
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);
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CREATE TABLE sensor_t (
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id SERIAL NOT NULL PRIMARY KEY,
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address NUMERIC NOT NULL UNIQUE,
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label VARCHAR(5) NOT NULL,
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index SMALLINT NOT NULL,
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device INTEGER NOT NULL REFERENCES device_t(id),
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unique (label, device),
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unique (index, device)
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);
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CREATE TABLE measurement_t (
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time TIMESTAMP WITHOUT TIME ZONE NOT NULL,
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device_name VARCHAR(16) NOT NULL,
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sensor_name VARCHAR(5) NOT NULL,
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temperature DOUBLE PRECISION
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);
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SELECT create_hypertable('measurement_t', 'time');
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insert into device_t (device_id, label) values('eui-43fa12f400006c88', 'badesee');
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insert into sensor_t (address, label, index, device)
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values (13258914387362694952, '0,5m ', 0, 1),
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(12970366982842161448, '2,0m ', 1, 1),
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(10664523975231507496, '3,0m ', 2, 1),
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(15276209993662477608, '4,0m ', 3, 1);
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select d.label as device_label,
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s.label as label,
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s.address as address,
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s.index as index
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from device_t d, sensor_t s
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where d.id = s.device;
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