If part of the POJO state wasn't loaded when it was detached, it can appear to be changed when it is merged back in.

在分离时，如果部分POJO状态没有加载，则在合并回去时可能显示为已更改。

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For example, if there are any dependent tables (tables that have a foreign key referencing the table into which data is to be loaded, for example), they might be placed in the CHECK PENDING state.

例如，如果存在依赖表(例如表中有一个外键，该外键引用数据要被装载到的目标表)，那么这些表可能被设为CHECK PENDING状态。

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If a table is in set integrity pending state at the beginning of the copy operation, the data is not loaded into the target table.

如果在复制操作开始时表处于set integrity pending状态，那么数据不会装载到目标表中。

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