Class ReadSession (2.1.0)

Version 2.1.0

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ReadSession(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Information about the ReadSession.

Attributes

Name	Description
name	str Output only. Unique identifier for the session, in the form projects/{project_id}/locations/{location}/sessions/{session_id}.
expire_time	.timestamp.Timestamp Output only. Time at which the session becomes invalid. After this time, subsequent requests to read this Session will return errors. The expire_time is automatically assigned and currently cannot be specified or updated.
data_format	.stream.DataFormat Immutable. Data format of the output data.
avro_schema	.avro.AvroSchema Output only. Avro schema.
arrow_schema	.arrow.ArrowSchema Output only. Arrow schema.
table	str Immutable. Table that this ReadSession is reading from, in the form projects/{project_id}/datasets/{dataset_id}/tables/{table_id}
table_modifiers	.stream.ReadSession.TableModifiers Optional. Any modifiers which are applied when reading from the specified table.
read_options	.stream.ReadSession.TableReadOptions Optional. Read options for this session (e.g. column selection, filters).
streams	Sequence[.stream.ReadStream] Output only. A list of streams created with the session. At least one stream is created with the session. In the future, larger request_stream_count values *may* result in this list being unpopulated, in that case, the user will need to use a List method to get the streams instead, which is not yet available.

Classes

TableModifiers

TableModifiers(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Additional attributes when reading a table.

TableReadOptions

TableReadOptions(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Options dictating how we read a table.