dbDescriptor {
  # Columns of the DB on which group by can done
  tags = ["campaign_id", "creative_id", "publisher_id",
        "publisher_name", "exchange_id", "device_os",
        "device_type", "country_code"]

  # Columns of the DB that will be summed during a group by
  counters = ["bids", "impressions", "clicks", "postclicks",
              "spent", "fees", "postclicks_revenue"]

  # The column with the timestamp used for all time calculations
  timeColumn = "date"

  # List of the partitions needed
  partitions = [
    {
      # Table name in Redshift
      table = "recent_data",
      # Time granularity in the partition
      precision = MINUTE,
      # How long we want to keep the data
      span = 1,
      spanUnit = DAYS
    },
    {
      table = "mid_term_data",
      precision = HOUR,
      span = 3,
      spanUnit = MONTHS
    },
    {
      table = "archived_data",
      precision = HOUR,
      span = 1,
      spanUnit = FOREVER
    }
  ]
}