[
  {
    "digest_no": "QD-01",
    "cluster": "core-aurora",
    "table_name": "members",
    "column_name": "legacy_grade",
    "calls_7d": 3212,
    "digest_text": "SELECT `id` , `legacy_grade` FROM `members` WHERE `id` = ?",
    "last_seen_at": "2026-09-27T09:58:00+09:00"
  },
  {
    "digest_no": "QD-02",
    "cluster": "core-aurora",
    "table_name": "members",
    "column_name": "grade",
    "calls_7d": 88410,
    "digest_text": "SELECT `grade` FROM `members` WHERE `id` = ?",
    "last_seen_at": "2026-09-27T10:02:00+09:00"
  },
  {
    "digest_no": "QD-03",
    "cluster": "core-aurora",
    "table_name": "car_reservations",
    "column_name": "memo",
    "calls_7d": 1204,
    "digest_text": "SELECT `memo` FROM `car_reservations` WHERE `reservation_id` = ?",
    "last_seen_at": "2026-09-27T09:41:00+09:00"
  },
  {
    "digest_no": "QD-04",
    "cluster": "core-aurora",
    "table_name": "vehicles",
    "column_name": "plate_no",
    "calls_7d": 240112,
    "digest_text": "SELECT `plate_no` , `zone_id` FROM `vehicles` WHERE `zone_id` = ?",
    "last_seen_at": "2026-09-27T10:05:00+09:00"
  },
  {
    "digest_no": "QD-05",
    "cluster": "payment-aurora",
    "table_name": "refund_requests",
    "column_name": "old_reason",
    "calls_7d": 0,
    "digest_text": "SELECT `old_reason` FROM `refund_requests` WHERE `id` = ?",
    "last_seen_at": "2026-08-11T16:22:00+09:00"
  },
  {
    "digest_no": "QD-06",
    "cluster": "payment-aurora",
    "table_name": "payment_logs",
    "column_name": "paid_at",
    "calls_7d": 51200,
    "digest_text": "SELECT `amount` FROM `payment_logs` WHERE `paid_at` BETWEEN ? AND ?",
    "last_seen_at": "2026-09-27T13:58:00+09:00"
  },
  {
    "digest_no": "QD-07",
    "cluster": "payment-aurora",
    "table_name": "refund_requests",
    "column_name": "reason_code",
    "calls_7d": 2310,
    "digest_text": "SELECT `reason_code` FROM `refund_requests` WHERE `member_id` = ?",
    "last_seen_at": "2026-09-27T13:40:00+09:00"
  },
  {
    "digest_no": "QD-08",
    "cluster": "core-aurora",
    "table_name": "refund_requests",
    "column_name": "old_reason",
    "calls_7d": 77,
    "digest_text": "SELECT `old_reason` FROM `refund_requests` WHERE `member_id` = ?",
    "last_seen_at": "2026-09-26T22:14:00+09:00"
  },
  {
    "digest_no": "QD-09",
    "cluster": "fleet-aurora",
    "table_name": "charging_sessions",
    "column_name": "note",
    "calls_7d": 12,
    "digest_text": "SELECT `note` FROM `charging_sessions` WHERE `session_id` = ?",
    "last_seen_at": "2026-09-25T11:03:00+09:00"
  },
  {
    "digest_no": "QD-10",
    "cluster": "core-aurora",
    "table_name": "coupon_issue_2023",
    "column_name": "coupon_code",
    "calls_7d": 0,
    "digest_text": "SELECT `coupon_code` FROM `coupon_issue_2023` WHERE `member_id` = ?",
    "last_seen_at": "2026-01-03T11:40:00+09:00"
  },
  {
    "digest_no": "QD-11",
    "cluster": "fleet-aurora",
    "table_name": "telemetry_staging",
    "column_name": "battery_pct",
    "calls_7d": 45,
    "digest_text": "SELECT `battery_pct` FROM `telemetry_staging` WHERE `vehicle_id` = ?",
    "last_seen_at": "2026-09-27T08:12:00+09:00"
  }
]