BigQuerySource(mapping=None, *, ignore_unknown_fields=False, **kwargs)BigQuery source import data from.
.. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
Attributes
| Name | Description |
| partition_date |
google.type.date_pb2.Date
BigQuery time partitioned table's \_PARTITIONDATE in YYYY-MM-DD format. Only supported in ImportProductsRequest. This field is a member of `oneof`_ ``partition``. |
| project_id |
str
The project ID (can be project # or ID) that the BigQuery source is in with a length limit of 128 characters. If not specified, inherits the project ID from the parent request. |
| dataset_id |
str
Required. The BigQuery data set to copy the data from with a length limit of 1,024 characters. |
| table_id |
str
Required. The BigQuery table to copy the data from with a length limit of 1,024 characters. |
| gcs_staging_dir |
str
Intermediate Cloud Storage directory used for the import with a length limit of 2,000 characters. Can be specified if one wants to have the BigQuery export to a specific Cloud Storage directory. |
| data_schema |
str
The schema to use when parsing the data from the source. Supported values for product imports: - ``product`` (default): One JSON Product per line. Each product must have a valid Product.id. - ``product_merchant_center``: See `Importing catalog data from Merchant Center |