`fullVisitorId` =>clientId，一对多映射? [英] `fullVisitorId` => clientId, one-to-many mapping?

问题描述

我的印象是 fullVisitorId 只是 clientId 的散列，两者之间应该有一对一的映射.但在这里，我遇到了一种情况，其中很少有 fullVisitorId 映射到两个不同的 client Id(我们将 GA Client ID 收集到用户范围的自定义维度中)

这可能吗?在什么情况下?

感谢您对此的任何澄清

干杯！

附上截图

解决方案

您可能有兴趣阅读 BigQuery 的 Google Analytics 架构.一些相关部分是:

• fullVisitorId:唯一访问者 ID(也称为客户端 ID).
• visitId:此会话的标识符.这是通常存储为 _utmb cookie 的值的一部分.这仅对用户而言是唯一的.对于完全唯一的 ID，您应该结合使用 fullVisitorId 和 visitId.

因此客户 ID 和完整访问者 ID 是同义词，如果您想要特定访问的唯一 ID，您应该使用 fullVisitorId 和 visitId 的组合.

I'm under the impression fullVisitorId being just a hash of clientId, there should be one-to-one mapping between the two. But here, I've a situation where few of the fullVisitorId are mapped to two different client Id (we're collecting GA Client ID into User scoped custom dimensions)

Is that possible ? under what circumstances?

Thanks for any clarification on this

Cheers!

[edit: ] attaching screenshot

解决方案

You may be interested in reading about the Google Analytics schema for BigQuery. Some of the relevant parts are:

• fullVisitorId: The unique visitor ID (also known as client ID).
• visitId: An identifier for this session. This is part of the value usually stored as the _utmb cookie. This is only unique to the user. For a completely unique ID, you should use a combination of fullVisitorId and visitId.

So client ID and full visitor ID are synonymous, and if you want a unique ID for a particular visit, you should use a combination of fullVisitorId and visitId.

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