如何通过文档快照updateTime查询firestore? [英] How can I query firestore by document snapshot updateTime?

问题描述

是否可以通过 updateTime 查询Firestore文档.可从文档快照中以 doc.updateTime 形式使用的字段，该字段可在where查询中使用?

Is it possible to query firestore documents by updateTime. The field that is available from the document snapshot as doc.updateTime and use it in a where query?

我正在使用node.js sdk.

I am using the node.js sdk.

推荐答案

据我所知，无法查询Firestore自动维护的元数据.如果您需要查询最近的更新日期，则需要在文档数据中添加一个具有该值的字段.

As far as I know there is no way to query on the metadata that Firestore automatically maintains. If you need to query the last update date, you will need to add a field with that value to the document's data.

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