Google Cloud Spanner是否支持“结构”类型？(Does Google Cloud Spanner support 'struct' type?)

Google Cloud Spanner是否支持“结构”类型？(Does Google Cloud Spanner support 'struct' type?)

似乎扳手支持结构类型。 https://cloud.google.com/spanner/docs/data-types#struct-type

但是，DDL没有提及如何使用。 https://cloud.google.com/spanner/docs/data-definition-language#data_types

这真的让我感到困惑，或者我被文件误解了？

Seems that spanner support struct type. https://cloud.google.com/spanner/docs/data-types#struct-type

However, DDL didn't mention how to use. https://cloud.google.com/spanner/docs/data-definition-language#data_types

It's really confuse me, or I got misunderstood with the documents?

最满意答案

你是对的。 对困惑感到抱歉。

Cloud Spanner不支持Struct作为列类型。 它仅支持Arrays作为列类型，但它确实从Structs中的查询返回数据，因此它是数据返回类型。

You are correct. Sorry for the confusion.

Cloud Spanner doesn't support Struct as a column type. It only supports Arrays as column types, but it does return data from queries in Structs so it's a data return type.