CREATE TABLE IF NOT EXISTS sites (
  id              UUID DEFAULT uuid_generate_v4(),
  url             TEXT NOT NULL,
  show            BOOLEAN NOT NULL DEFAULT TRUE,
  can_use         BOOLEAN NOT NULL DEFAULT TRUE,
  created_at      BIGINT NOT NULL DEFAULT (extract(epoch from now()) * 1000),
  updated_at      BIGINT NOT NULL DEFAULT (extract(epoch from now()) * 1000),
  deleted_at      BIGINT,
  PRIMARY KEY (id),
  UNIQUE (url)
);

CREATE UNIQUE INDEX uidx_sites_url ON sites (url);

-- trigger (updated_at)
CREATE TRIGGER tg_sites_updated_at
  BEFORE UPDATE
  ON sites
  FOR EACH ROW
  EXECUTE PROCEDURE update_updated_at_column();