connection
Parameters
value
The connection specifying the credentials to be used to read external storage, such as Azure Blob, Cloud Storage, or S3. The connection_id can have the form {{project}}.{{location}}.{{connection_id}} or projects/{{project}}/locations/{{location}}/connections/{{connection_id}}. ~>NOTE: If you set external_data_configuration.connection_id, the table schema must be specified using the top-level schema field documented above.