为了避免分析重复的记录，从checking表中删除时间戳大于一个指定的、用于修剪日志的时间戳的行。

To avoid analyzing duplicate records, you delete rows from the CHECKING table with a timestamp greater than the one you pruned the pruned the audit log with.

youdao

字典的键天生是唯一的，所以可以用字典来删除文件的重复行，为了完成这项工作可以采用保存这些行的原始排序的方法。

The keys of a dictionary are inherently unique, so it's possible to use a dictionary to remove duplicate lines from a file, and to do so in a way that preserves the original ordering of those lines.

youdao

从您装载的表中删除被修剪过的行，确保以后不会将重复的行装载到表中，这是一种很好的做法。

It is a good practice to delete any pruned rows from the table that you loaded in order to ensure that you do not load duplicate rows into the table at a later time.

youdao