CREATE TABLE IF NOT EXISTS notes (
  id         INT AUTO_INCREMENT PRIMARY KEY,
  client_id  INT          NOT NULL,
  title      VARCHAR(200) NULL,
  body       TEXT         NOT NULL,
  color      VARCHAR(20)  NOT NULL DEFAULT 'blue',
  pinned     TINYINT(1)   NOT NULL DEFAULT 0,
  created_by INT          NULL,
  deleted_at TIMESTAMP    NULL DEFAULT NULL,
  is_deleted TINYINT(1)   NOT NULL DEFAULT 0,
  created_at TIMESTAMP    DEFAULT CURRENT_TIMESTAMP,
  updated_at TIMESTAMP    DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  FOREIGN KEY (client_id)  REFERENCES clients(id) ON DELETE CASCADE,
  FOREIGN KEY (created_by) REFERENCES users(id)   ON DELETE SET NULL
);