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

问题描述

我觉得 fullVisitorId 只是clientId的一个散列，所以这两者之间应该有一对一的映射关系。但是在这里，我遇到了很少 fullVisitorId 映射到两个不同的客户端Id （我们将GA客户端ID收集到用户自定义维度中）

这可能吗？在什么情况下？

感谢您对此进行任何澄清

干杯！

[edit：]附加屏幕截图

解决方案

您可能有兴趣阅读 BigQuery的Google Analytics纲要。一些相关的部分是：

• fullVisitorId ：独特的访客ID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。这只对用户是唯一的。对于完全唯一的ID，您应该使用fullVisitorId和visitId的组合。
  

因此，客户端ID和完整访客ID是同义词，如果你想要一个特定访问的唯一ID，你应该使用 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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