pyHeatpump/db/pyheatpump.sql

CREATE TABLE IF NOT EXISTS var_type (
	slabel CHAR(1) UNIQUE PRIMARY KEY,
	label VARCHAR(10) UNIQUE,
	type VARCHAR(10) NOT NULL,
	start_address INT NOT NULL DEFAULT 0,
	end_address INT NOT NULL DEFAULT 250
);

CREATE TABLE IF NOT EXISTS variable (
	type CHAR(1) NOT NULL,
	address INT NOT NULL,
	unit VARCHAR(5) NULL,
	last_update DATETIME NULL,


	FOREIGN KEY (type) REFERENCES var_type(slabel)
		ON DELETE CASCADE,
	PRIMARY KEY(type, address)
);

CREATE TABLE IF NOT EXISTS var_value (
	type CHAR(1) NOT NULL,
	address INT NOT NULL,
	time DATETIME DEFAULT CURRENT_TIMESTAMP,
	value INT NOT NULL,

	FOREIGN KEY (type) REFERENCES variable(type)
		ON DELETE CASCADE,
	FOREIGN KEY (address) REFERENCES variable(address)
		ON DELETE CASCADE,
	PRIMARY KEY(type, address, time)
);

INSERT INTO var_type (slabel, label, type) VALUES (
	'A', 'Analog', 'float');
INSERT INTO var_type (slabel, label, type) VALUES (
	'I', 'Integer', 'int');
INSERT INTO var_type (slabel, label, type) VALUES (
	'D', 'Digital', 'boolean');