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    Class ExtractJob (3.18.0) 

      ExtractJob 
 ( 
 job_id 
 , 
 source 
 , 
 destination_uris 
 , 
 client 
 , 
 job_config 
 = 
 None 
 )

    Asynchronous job: extract data from a table into Cloud Storage.

    Parameters

    Name
    Description
    job_id
    str

    the job's ID.

    source
    Union[ google.cloud.bigquery.table.TableReference , google.cloud.bigquery.model.ModelReference ]

    Table or Model from which data is to be loaded or extracted.

    destination_uris
    List[str]

    URIs describing where the extracted data will be written in Cloud Storage, using the format gs://<bucket_name>/<object_name_or_glob> .

    client
    google.cloud.bigquery.client.Client

    A client which holds credentials and project configuration.

    job_config
    Optional[ google.cloud.bigquery.job.ExtractJobConfig ]

    Extra configuration options for the extract job.

    Properties

    compression

    See compression .

    configuration

    The configuration for this extract job.

    created

    Datetime at which the job was created.

    Returns
    Type
    Description
    Optional[datetime.datetime]
    the creation time (None until set from the server).

    destination_format

    See destination_format .

    destination_uri_file_counts

    Return file counts from job statistics, if present.

    See: https://cloud.google.com/bigquery/docs/reference/rest/v2/Job#JobStatistics4.FIELDS.destination_uri_file_counts

    Returns
    Type
    Description
    List[int]
    A list of integer counts, each representing the number of files per destination URI or URI pattern specified in the extract configuration. These values will be in the same order as the URIs specified in the 'destinationUris' field. Returns None if job is not yet complete.

    destination_uris

    List[str]: URIs describing where the extracted data will be written in Cloud Storage, using the format gs://<bucket_name>/<object_name_or_glob> .

    ended

    Datetime at which the job finished.

    Returns
    Type
    Description
    Optional[datetime.datetime]
    the end time (None until set from the server).

    error_result

    Error information about the job as a whole.

    Returns
    Type
    Description
    Optional[Mapping]
    the error information (None until set from the server).

    errors

    Information about individual errors generated by the job.

    Returns
    Type
    Description
    Optional[List[Mapping]]
    the error information (None until set from the server).

    etag

    ETag for the job resource.

    Returns
    Type
    Description
    Optional[str]
    the ETag (None until set from the server).

    field_delimiter

    See field_delimiter .

    job_id

    str: ID of the job.

    job_type

    Type of job.

    Returns
    Type
    Description
    str
    one of 'load', 'copy', 'extract', 'query'.

    labels

    Dict[str, str]: Labels for the job.

    location

    str: Location where the job runs.

    num_child_jobs

    The number of child jobs executed.

    See: https://cloud.google.com/bigquery/docs/reference/rest/v2/Job#JobStatistics.FIELDS.num_child_jobs

    parent_job_id

    Return the ID of the parent job.

    See: https://cloud.google.com/bigquery/docs/reference/rest/v2/Job#JobStatistics.FIELDS.parent_job_id

    Returns
    Type
    Description
    Optional[str]
    parent job id.

    path

    URL path for the job's APIs.

    Returns
    Type
    Description
    str
    the path based on project and job ID.

    print_header

    See print_header .

    project

    Project bound to the job.

    Returns
    Type
    Description
    str
    the project (derived from the client).

    reservation_usage

    Job resource usage breakdown by reservation.

    Returns
    Type
    Description
    List[ google.cloud.bigquery.job.ReservationUsage ]
    Reservation usage stats. Can be empty if not set from the server.

    script_statistics

    Statistics for a child job of a script.

    URL for the job resource.

    Returns
    Type
    Description
    Optional[str]
    the URL (None until set from the server).

    session_info

    [Preview] Information of the session if this job is part of one.

    .. versionadded:: 2.29.0

    source

    Union[ google.cloud.bigquery.table.TableReference , google.cloud.bigquery.model.ModelReference ]: Table or Model from which data is to be loaded or extracted.

    started

    Datetime at which the job was started.

    Returns
    Type
    Description
    Optional[datetime.datetime]
    the start time (None until set from the server).

    state

    Status of the job.

    Returns
    Type
    Description
    Optional[str]
    the state (None until set from the server).

    transaction_info

    Information of the multi-statement transaction if this job is part of one.

    Since a scripting query job can execute multiple transactions, this property is only expected on child jobs. Use the list_jobs method with the parent_job parameter to iterate over child jobs.

    .. versionadded:: 2.24.0

    user_email

    E-mail address of user who submitted the job.

    Returns
    Type
    Description
    Optional[str]
    the URL (None until set from the server).

    Methods

    add_done_callback

      add_done_callback 
 ( 
 fn 
 )

    Add a callback to be executed when the operation is complete.

    If the operation is not already complete, this will start a helper thread to poll for the status of the operation in the background.

    Parameter
    Name
    Description
    fn
    Callable[Future]

    The callback to execute when the operation is complete.

    cancel

      cancel 
 ( 
 client 
 = 
 None 
 , 
 retry 
 : 
 typing 
 . 
 Optional 
 [ 
 google 
 . 
 api_core 
 . 
 retry 
 . 
 retry_unary 
 . 
 Retry 
 ] 
 = 
< google 
 . 
 api_core 
 . 
 retry 
 . 
 retry_unary 
 . 
 Retry 
 object 
> , 
 timeout 
 : 
 typing 
 . 
 Optional 
 [ 
 float 
 ] 
 = 
 None 
 ) 
 - 
> bool

    API call: cancel job via a POST request

    See https://cloud.google.com/bigquery/docs/reference/rest/v2/jobs/cancel

    Parameters
    Name
    Description
    retry
    Optional[google.api_core.retry.Retry]

    How to retry the RPC.

    timeout
    Optional[float]

    The number of seconds to wait for the underlying HTTP transport before using retry

    client
    Optional[ google.cloud.bigquery.client.Client ]

    the client to use. If not passed, falls back to the client stored on the current dataset.

    Returns
    Type
    Description
    bool
    Boolean indicating that the cancel request was sent.

    cancelled

      cancelled 
 ()

    Check if the job has been cancelled.

    This always returns False. It's not possible to check if a job was cancelled in the API. This method is here to satisfy the interface for google.api_core.future.Future .

    Returns
    Type
    Description
    bool
    False

    done

      done 
 ( 
 retry 
 : 
 google 
 . 
 api_core 
 . 
 retry 
 . 
 retry_unary 
 . 
 Retry 
 = 
< google 
 . 
 api_core 
 . 
 retry 
 . 
 retry_unary 
 . 
 Retry 
 object 
> , 
 timeout 
 : 
 typing 
 . 
 Optional 
 [ 
 float 
 ] 
 = 
 None 
 , 
 reload 
 : 
 bool 
 = 
 True 
 ) 
 - 
> bool

    Checks if the job is complete.

    Parameters
    Name
    Description
    timeout
    Optional[float]

    The number of seconds to wait for the underlying HTTP transport before using retry .

    reload
    Optional[bool]

    If True , make an API call to refresh the job state of unfinished jobs before checking. Default True .

    retry
    Optional[google.api_core.retry.Retry]

    How to retry the RPC. If the job state is DONE , retrying is aborted early, as the job will not change anymore.

    Returns
    Type
    Description
    bool
    True if the job is complete, False otherwise.

    exception

      exception 
 ( 
 timeout 
 = 
< object 
 object 
> )

    Get the exception from the operation, blocking if necessary.

    See the documentation for the result method for details on how this method operates, as both result and this method rely on the exact same polling logic. The only difference is that this method does not accept retry and polling arguments but relies on the default ones instead.

    Parameter
    Name
    Description
    timeout
    int

    How long to wait for the operation to complete.

    Returns
    Type
    Description
    Optional[google.api_core.GoogleAPICallError]
    The operation's error.

    exists

      exists 
 ( 
 client 
 = 
 None 
 , 
 retry 
 : 
 google 
 . 
 api_core 
 . 
 retry 
 . 
 retry_unary 
 . 
 Retry 
 = 
< google 
 . 
 api_core 
 . 
 retry 
 . 
 retry_unary 
 . 
 Retry 
 object 
> , 
 timeout 
 : 
 typing 
 . 
 Optional 
 [ 
 float 
 ] 
 = 
 None 
 ) 
 - 
> bool

    API call: test for the existence of the job via a GET request

    See https://cloud.google.com/bigquery/docs/reference/rest/v2/jobs/get

    Parameters
    Name
    Description
    timeout
    Optional[float]

    The number of seconds to wait for the underlying HTTP transport before using retry .

    client
    Optional[ google.cloud.bigquery.client.Client ]

    the client to use. If not passed, falls back to the client stored on the current dataset.

    retry
    Optional[google.api_core.retry.Retry]

    How to retry the RPC.

    Returns
    Type
    Description
    bool
    Boolean indicating existence of the job.

    from_api_repr

      from_api_repr 
 ( 
 resource 
 : 
 dict 
 , 
 client 
 ) 
 - 
> google 
 . 
 cloud 
 . 
 bigquery 
 . 
 job 
 . 
 extract 
 . 
 ExtractJob

    Factory: construct a job given its API representation

    Parameters
    Name
    Description
    resource
    Dict

    dataset job representation returned from the API

    client
    google.cloud.bigquery.client.Client

    Client which holds credentials and project configuration for the dataset.

    Returns
    Type
    Description
    google.cloud.bigquery.job.ExtractJob
    Job parsed from resource .

    reload

      reload 
 ( 
 client 
 = 
 None 
 , 
 retry 
 : 
 google 
 . 
 api_core 
 . 
 retry 
 . 
 retry_unary 
 . 
 Retry 
 = 
< google 
 . 
 api_core 
 . 
 retry 
 . 
 retry_unary 
 . 
 Retry 
 object 
> , 
 timeout 
 : 
 typing 
 . 
 Optional 
 [ 
 float 
 ] 
 = 
 None 
 )

    API call: refresh job properties via a GET request.

    See https://cloud.google.com/bigquery/docs/reference/rest/v2/jobs/get

    Parameters
    Name
    Description
    timeout
    Optional[float]

    The number of seconds to wait for the underlying HTTP transport before using retry .

    client
    Optional[ google.cloud.bigquery.client.Client ]

    the client to use. If not passed, falls back to the client stored on the current dataset.

    retry
    Optional[google.api_core.retry.Retry]

    How to retry the RPC.

    result

      result 
 ( 
 retry 
 : 
 typing 
 . 
 Optional 
 [ 
 google 
 . 
 api_core 
 . 
 retry 
 . 
 retry_unary 
 . 
 Retry 
 ] 
 = 
< google 
 . 
 api_core 
 . 
 retry 
 . 
 retry_unary 
 . 
 Retry 
 object 
> , 
 timeout 
 : 
 typing 
 . 
 Optional 
 [ 
 float 
 ] 
 = 
 None 
 ) 
 - 
> google 
 . 
 cloud 
 . 
 bigquery 
 . 
 job 
 . 
 base 
 . 
 _AsyncJob

    Start the job and wait for it to complete and get the result.

    Parameters
    Name
    Description
    retry
    Optional[google.api_core.retry.Retry]

    How to retry the RPC. If the job state is DONE , retrying is aborted early, as the job will not change anymore.

    timeout
    Optional[float]

    The number of seconds to wait for the underlying HTTP transport before using retry . If multiple requests are made under the hood, timeout applies to each individual request.

    Exceptions
    Type
    Description
    google.cloud.exceptions.GoogleAPICallError
    if the job failed.
    concurrent.futures.TimeoutError
    if the job did not complete in the given timeout.
    Returns
    Type
    Description
    _AsyncJob
    This instance.

    running

      running 
 ()

    True if the operation is currently running.

    set_exception

      set_exception 
 ( 
 exception 
 )

    Set the Future's exception.

    set_result

      set_result 
 ( 
 result 
 )

    Set the Future's result.

    to_api_repr

      to_api_repr 
 ()

    Generate a resource for _begin .
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