Class ExternalConfig (3.16.0)

ExternalConfig(source_format)

Description of an external data source.

Parameter

Name Description
source_format ExternalSourceFormat

See source_format.

Properties

autodetect

bool: If :data:True, try to detect schema and format options automatically.

See https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.autodetect

avro_options

bigtable_options

compression

connection_id

Optional[str]: [Experimental] ID of a BigQuery Connection API resource.

.. WARNING::

This feature is experimental. Pre-GA features may have limited support, and changes to pre-GA features may not be compatible with other pre-GA versions.

csv_options

decimal_target_types

Possible SQL data types to which the source decimal values are converted.

See: https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.decimal_target_types

.. versionadded:: 2.21.0

google_sheets_options

hive_partitioning

Optional[.external_config.HivePartitioningOptions]: [Beta] When set, it configures hive partitioning support.

See https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.hive_partitioning_options

ignore_unknown_values

bool: If :data:True, extra values that are not represented in the table schema are ignored. Defaults to :data:False.

See https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.ignore_unknown_values

max_bad_records

int: The maximum number of bad records that BigQuery can ignore when reading data.

See https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.max_bad_records

options

Source-specific options.

parquet_options

reference_file_schema_uri

Optional[str]: When creating an external table, the user can provide a reference file with the table schema. This is enabled for the following formats:

AVRO, PARQUET, ORC

schema

source_format

source_uris

Methods

from_api_repr

from_api_repr(
 resource: dict,
) -> google.cloud.bigquery.external_config.ExternalConfig

Factory: construct an .external_config.ExternalConfig instance given its API representation.

Parameter
Name Description
resource Dict[str, Any]

Definition of an .external_config.ExternalConfig instance in the same representation as is returned from the API.

Returns
Type Description
ExternalConfig Configuration parsed from resource.

to_api_repr

to_api_repr() -> dict

Build an API representation of this object.

Returns
Type Description
Dict[str, Any] A dictionary in the format used by the BigQuery API.

__init__

__init__(source_format) -> None

Initialize self. See help(type(self)) for accurate signature.

ExternalConfig

ExternalConfig(source_format)

Description of an external data source.

Parameter
Name Description
source_format ExternalSourceFormat

See source_format.

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025年10月30日 UTC.