从python API查询时Google Bigquery错误

Question

我有一个可在控制台云Google平台中使用的查询：

select visitorId 
from `data-set-id.ga_sessions_20180801` as ga,  UNNEST(ga.hits) AS hits

我需要在python代码中执行它，如果我尝试使用google-api-python-client（v 1.5.0）执行此操作，我总是会收到错误消息：

1-

select fullVisitorId FROM [data-set-id.ga_sessions_20180801] as ga, UNNEST(hits) AS hits

我得到：

  

googleapiclient.errors.HttpError：https://www.googleapis.com/bigquery/v2/projects/project-id/queries?alt=json   返回“未找到：表project-id：data-set-id.hits“>

2-

select fullVisitorId FROM [data-set-id.ga_sessions_20180801] as ga,UNNEST(ga.hits) AS hits

我得到：

  

googleapiclient.errors.HttpError：https://www.googleapis.com/bigquery/v2/projects/project-id/queries?alt=json   返回“未找到：数据集project-id：ga“>

3-

select fullVisitorId FROM [data-set-id.ga_sessions_20180801] as ga, UNNEST(ga_sessions_20180801.hits) AS hits

我得到：

  

googleapiclient.errors.HttpError：https://www.googleapis.com/bigquery/v2/projects/project-id/queries?alt=json   返回“未找到：数据集   project-id：ga_sessions_20180801“>

4-

select fullVisitorId FROM [data-set-id.ga_sessions_20180801] as ga, UNNEST(data-set-id.ga_sessions_20180801.hits) AS hits

我得到：

  

googleapiclient.errors.HttpError：https://www.googleapis.com/bigquery/v2/projects/project-id/queries?alt=json   在第4行第24列返回“遇到”。“>

我用来称呼它的代码：

bigquery_service = googleapiclient.discovery.build( 'bigquery', 'v2', credentials=credentials) 
bigquery_service.jobs().query( projectId=self.project_id, body={"maxResults": max_results, "defaultDataset": {"projectId": self.project_id, "datasetId": data_set_id}, "query": query}) 

我尝试了更多尝试，但结果相同...有任何想法吗？