message: fix oracle test
diff: @@ -41,6 +41,9 @@ def test_oracle_complex_join(oracle_url: str) -> None:
  assert_frame_equal(df, expected, check_names=True)
  +@pytest.mark.skipif(
  + not os.environ.get("ORACLE_URL"), reason="Test oracle only when `ORACLE_URL` is set"
  +)
  def test_oracle_complex_join(oracle_url: str) -> None:
  query = "SELECT a.test_int, b.test_date, c.test_num_int FROM test_table a left join test_types b on a.test_int = b.test_num_int cross join (select test_num_int from test_types) c where c.test_num_int < 3"
  df = read_sql(oracle_url, query)
  