Here we see that the mapping for Customer's Address field links the two halves of the relationship together with the foreign key reference in the table schema file.
这里我们看到Customer的Address字段映射用表模式文件中的外键引用将关系的两部分链接在一起。
The fields (reference, date, buyer, address, and total) are written according to the mapping table.
根据映射表编写字段（reference、date、buyer、address 和 total）。
When logical overwrite is performed a number of times, arbitrary data achieved before logical overwrite are reproduced by sequential reference to the old physical address of the correlation table.
在进行了多次逻辑覆写的情况下，依次参照上述对应关系列表的旧物理地址来重放进行逻辑覆写前的任意数据。
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