[
  {
    "expression": "ts_std_dev(fnd6_xopr / fnd6_salexg, 8) / ts_mean(fnd6_xopr / fnd6_salexg, 8)",
    "time_consuming": 6.53,
    "formatted_time": "6.53秒",
    "alpha_id": "/",
    "status": "error",
    "description": "Operator divide does not support event inputs",
    "simulation_timestamp": "2026-03-20 12:04:47",
    "performance_metrics": {},
    "risk_metrics": {},
    "quantile_metrics": {},
    "other_metrics": {}
  }
]