CREATE TABLE IF NOT EXISTS sensors (
  sensor_id               CHAR(36)                                                CONSTRAINT pk_sensors PRIMARY KEY,
  sensor_name             VARCHAR(64)                                             NOT NULL,
  sensor_location         VARCHAR(64),
  wire_id                 VARCHAR(64),
  i2c_bus                 VARCHAR(255),
  i2c_address             VARCHAR(12),
  gpio_number             VARCHAR(6),
  sensor_model            VARCHAR(16)                                             NOT NULL,
  sensor_enabled          BOOLEAN                     DEFAULT TRUE                NOT NULL,
  tick_duration           VARCHAR(6)                                              NOT NULL,
  device_id               CHAR(36)                                                NOT NULL,
  creation_date           TIMESTAMP WITH TIME ZONE    DEFAULT CURRENT_TIMESTAMP   NOT NULL,
  update_date             TIMESTAMP WITH TIME ZONE
);

ALTER TABLE sensors
ADD FOREIGN KEY (device_id)
REFERENCES devices(device_id)
ON DELETE CASCADE
ON UPDATE CASCADE;