仅当此变量等于1时，才向文件记录添加日期。

The date is only added to the file record when this variable is equal to 1. The ESQL used in the Compute node is.

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添加日期列出的属性信息，使用一个新类，日期。

Add a date listed to the property information, using a new class, date.

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可按任意顺序添加日期，因为集合将自动对日期进行排序。

You can add dates in any order, because the collection will order them for you.

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