只是想张贴的解决方案，以防有人有同样的问题。dbt没有更新bq本身中的描述。不过，他们上个月发布了这个新功能：https://github.com/fishtown-analytics/dbt/releases/tag/v0.17.0
单据可以照常生成，bq会显示表和列的说明。您只需将以下内容添加到dbt\u project.yml文件中：

+persist_docs:
  relation: true
  columns: true

您可以通过两种方式插入说明。
使用schema.yml文件

{version: 2

models:
  - name: events
    description: This table contains clickstream events from the marketing website

    columns:
      - name: event_id
        description: This is a unique identifier for the event
        tests:
          - unique
          - not_null

      - name: user-id
        quote: true
        description: The user who performed the event
        tests:
          - not_null
}

您还可以在sql中使用jinga模板。

{% docs table_events %}

This table contains clickstream events from the marketing website.

The events in this table are recorded by [Snowplow](http://github.com/snowplow/snowplow) and piped into the warehouse on an hourly basis. The following pages of the marketing site are tracked:
 - /
 - /about
 - /team
 - /contact-us

{% enddocs %}