charge_records 索引：
  INDEX  compartment_id                           (compartment_id)
  INDEX  idx_charge_records_cabinet               (cabinet_id)
  INDEX  idx_charge_records_cabinet_start_time    (cabinet_id,start_time)
  INDEX  idx_charge_records_start_time            (start_time)
  UNIQUE PRIMARY                                  (id)
idx_charge_records_cabinet_start_time 存在: True (2 列)
idx_charge_records_start_time 存在: True (1 列)