订单总数将被进位成整数。
例如,假设您有一个数据源,它返回每天的新订单总数。
For example, assume you have a feed that returns the total number of new orders for each day.
注意,在正常的情况下,总数决不会存储在订单本身当中。
Note that in truly normalized fashion the grand total was never stored in the order itself.
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