按费用排名的 BigQuery 热门查询

-- Most expensive queries ranked by on-demand cost

DECLARE lookback_days INT64 DEFAULT 14;

WITH jobs AS (
  SELECT
    user_email,
    query,
    job_id,
    project_id,
    start_time,
    end_time,
    COALESCE(total_bytes_billed, 0) AS bytes_billed,
    total_slot_ms,
    ROW_NUMBER() OVER (PARTITION BY job_id ORDER BY end_time DESC) AS rn
  FROM `your-project`.`region-us`.INFORMATION_SCHEMA.JOBS_BY_PROJECT
  WHERE creation_time >= TIMESTAMP_SUB(CURRENT_TIMESTAMP(), INTERVAL lookback_days DAY)
    AND job_type = 'QUERY' AND state = 'DONE' AND total_slot_ms IS NOT NULL
)
SELECT
  user_email,
  query,
  project_id,
  start_time,
  end_time,
  ROUND(bytes_billed / POW(1024, 4), 4) AS tib_scanned,
  ROUND(bytes_billed / POW(1024, 4) * 6.25, 2) AS on_demand_cost_usd,
  ROUND(SAFE_DIVIDE(total_slot_ms,
    TIMESTAMP_DIFF(end_time, start_time, MILLISECOND)), 0) AS avg_slots
FROM jobs
...