获取BigQuery项目中所有BigQuery表的最后访问日期 [英] Get the Last Access date for all BigQuery tables in a BigQuery Project

问题描述

我知道如何获取上次修改表但未访问表的日期.是否可以获取上次读取表的时间?是否有查询或API来获取此信息?

I know how to get the date a table was last modified, but not accessed. Is it possible to get the last time a table was read ? Is there query or an API to get this ?

推荐答案

如果您有审核日志在BigQuery中，您可以编写如下查询:

If you have audit logs in BigQuery, you can write a query like this:

WITH tables AS (
  SELECT FORMAT("%s.%s.%s", table.projectId, table.datasetId, table.tableId) table
    , MAX(timestamp) last_access
  FROM (
    SELECT timestamp
      , protopayload_auditlog.servicedata_v1_bigquery.jobCompletedEvent.job.jobStatistics.referencedTables  
    FROM `fh-bigquery.audit.cloudaudit_googleapis_com_data_access_201811*`
  ), UNNEST(referencedTables) table
  GROUP BY 1
)

SELECT * 
FROM tables

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