是否可以从 BigQuery 元数据中提取列描述

Question

I'm trying to get the column descriptions from the BigQuery metadata but I can't seem to find it, I've tried using INFORMATION_SCHEMA.COLUMNS but it isn't contained in here, does anyone know where it is please?

Thanks!

Answer 1

You can have access to all the columns metadata by querying the COLUMN_FIELD_PATHS table:

SELECT * FROM `yourdataset.INFORMATION_SCHEMA.COLUMN_FIELD_PATHS`

Doc reference here

You get information about column names and types within all your dataset.