英文:
How to get 'Last modified' information of parquert files in BigQuery
问题
我刚刚开始使用BigQuery和Looker。为了能够知道外部表中的信息何时更新，我需要访问parquet文件的'Last modified'属性。我已经有_FILE_NAME信息，但不能使用外部表的元数据，因为它不反映信息何时更新。
我需要访问的信息如下：
在此输入图像描述
**我已经有_FILE_NAME信息，但不能使用外部表的元数据，因为它不反映信息何时更新。
英文:
I've just started to use BigQuery and Looker. So as to be able to know when the information in a external table was updated, I would need to have access to the atribute 'Last modified' from the parquet files.
I have already the _FILE_NAME information and I can't use the metadata from the External table since it doesn't reflect when the information is updated.
This would the info i need to access to:
enter image description here
**I have already the _FILE_NAME information and I can't use the metadata from the External table since it doesn't reflect when the information is updated.
答案1
得分: 0
这在BigQuery外部表中是不可能的。
英文:
This isn't possible through BigQuery external tables
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