beteran-api-kgon-server-service/migrations/202208051400_api_kgon_balance/up.sql

CREATE TABLE IF NOT EXISTS api_kgon_balances (
  id              SERIAL PRIMARY KEY,
  balance         BIGINT NOT NULL DEFAULT 0,
  balance_bota    BIGINT NOT NULL DEFAULT 0,
  created_at      BIGINT NOT NULL DEFAULT (extract(epoch from now()) * 1000),
  updated_at      BIGINT NOT NULL DEFAULT (extract(epoch from now()) * 1000)
);

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