Last update time (.lut) expiration.
最后更新时间(. LUT)过期。
If updates to the coordinate columns are possible, you may still be able to avoid bulk copies if the source table contains a time stamp column that records the time of last update for each row.
如果可能更新坐标列,但是源表包含一个时间戳列,其中记录了每行最后一次更新的时间,那么仍然可以避免批量复制。
Check to see if the status flag for input power is set to "Valid", and if so, then see if the time stamp has been update since the last update.
检查电力输入的状态标志是否设置为“ Valid ”,如果是的话,检查自从上一次更新以来时间戳是否更新过。
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