postgresql> CREATE TABLE "indicators" (
  id SERIAL UNIQUE,
  name VARCHAR(20) NOT NULL,
  param1 VARCHAR(10),
  param2 VARCHAR(10),
  param3 VARCHAR(10),
  param4 VARCHAR(10),
  param5 VARCHAR(10),
  description VARCHAR(30),
  PRIMARY KEY (id)
);
postgresql> INSERT INTO indicators VALUES (7, 'PPO', 9, 4, 2, NULL, NULL, 'PPO');
postgresql> CREATE TABLE "ppo_data" (
  id_attached INTEGER,
  date DATE NOT NULL,
  data1 NUMERIC(10, 5) NOT NULL,
  data2 NUMERIC(10, 5),
  PRIMARY KEY (id_attached, date)
);
postgresql> INSERT INTO ppo_data VALUES (7, '20061120', 23, 34);