initial

schema/extend-schema.sql

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+-- extend the schema monitoring from badesee application
+
+
+create table level_sensor_t (
+    id serial not null primary key,
+    sensor_type varchar(16) not null,
+    ground_level numeric(10, 0) not null,
+    device integer not null references device_id(id),
+    unique(device)
+);
+
+create table level_measurement_t (
+    time timestamp without time zone not null,
+    device_name varchar(16) not null,
+    raw_level numeric(10, 0),
+    level numeric(10, 0),
+    status varchar(16),
+    battery float
+);
+
+select create_hypertable('level_measurement_t', 'time');
+
+insert into device_t (device_id, label) values('eui-a84041a2c18341d6', 'deilbach');
+insert into level_sensor_t (sensor_type, ground_level, device) 
+    values('LDDS75', 300, (select id from device_t where device_id='eui-a84041a2c18341d6'));
+
+create user level_preprocessor password 'geheim';
+grant select on device_t, level_sensor_t to level_preprocessor;
+grant insert on level_measurement_t to level_preprocessor;
+