Class Table (1.0.0) 

Table(table_id, instance, mutation_timeout=None, app_profile_id=None)

Representation of a Google Cloud Bigtable Table.

  • create the table
  • delete the table
  • list_column_families in the table

Parameters

Name Description
table_id str

The ID of the table.

instance Instance

The instance that owns the table.

app_profile_id str

(Optional) The unique name of the AppProfile.

Properties

name

Table name used in requests.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_table_name] :end-before: [END bigtable_table_name]

"projects/../instances/../tables/{table_id}"
Returns
Type Description
str The table name.

Methods

append_row

append_row(row_key)

Create a xref_AppendRow associated with this table.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_table_append_row] :end-before: [END bigtable_table_append_row]

Parameter
Name Description
row_key bytes

The key for the row being created.

column_family

column_family(column_family_id, gc_rule=None)

Factory to create a column family associated with this table.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_table_column_family] :end-before: [END bigtable_table_column_family]

Parameters
Name Description
column_family_id str

The ID of the column family. Must be of the form <code>_a-zA-Z0-9][-_.a-zA-Z0-9]</code>*.

gc_rule .GarbageCollectionRule

(Optional) The garbage collection settings for this column family.

Returns
Type Description
.ColumnFamily A column family owned by this table.

conditional_row

conditional_row(row_key, filter_)

Create a xref_ConditionalRow associated with this table.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_table_conditional_row] :end-before: [END bigtable_table_conditional_row]

Parameters
Name Description
row_key bytes

The key for the row being created.

filter_ .RowFilter

(Optional) Filter to be used for conditional mutations. See .ConditionalRow for more details.

create

create(initial_split_keys=[], column_families={})

Creates this table.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_create_table] :end-before: [END bigtable_create_table]

Parameter
Name Description
initial_split_keys list

(Optional) list of row keys in bytes that will be used to initially split the table into several tablets.

delete

delete()

Delete this table.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_delete_table] :end-before: [END bigtable_delete_table]

direct_row

direct_row(row_key)

Create a xref_DirectRow associated with this table.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_table_direct_row] :end-before: [END bigtable_table_direct_row]

Parameter
Name Description
row_key bytes

The key for the row being created.

drop_by_prefix

drop_by_prefix(row_key_prefix, timeout=None)

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_drop_by_prefix] :end-before: [END bigtable_drop_by_prefix]

Parameters
Name Description
row_prefix bytes

Delete all rows that start with this row key prefix. Prefix cannot be zero length.

timeout float

(Optional) The amount of time, in seconds, to wait for the request to complete. :raise: google.api_core.exceptions.GoogleAPICallError: If the request failed for any reason. google.api_core.exceptions.RetryError: If the request failed due to a retryable error and retry attempts failed. ValueError: If the parameters are invalid.

exists

exists()

Check whether the table exists.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_check_table_exists] :end-before: [END bigtable_check_table_exists]

Returns
Type Description
bool True if the table exists, else False.

get_cluster_states

get_cluster_states()

List the cluster states owned by this table.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_get_cluster_states] :end-before: [END bigtable_get_cluster_states]

Returns
Type Description
dict Dictionary of cluster states for this table. Keys are cluster ids and values are :class: 'ClusterState' instances.

list_column_families

list_column_families()

List the column families owned by this table.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_list_column_families] :end-before: [END bigtable_list_column_families]

Exceptions
Type Description
`ValueErro
Returns
Type Description
dict Dictionary of column families attached to this table. Keys are strings (column family names) and values are .ColumnFamily instances.

mutate_rows

mutate_rows(rows, retry=<google.api_core.retry.Retry object>)

Mutates multiple rows in bulk.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_mutate_rows] :end-before: [END bigtable_mutate_rows]

The method tries to update all specified rows. If some of the rows weren't updated, it would not remove mutations. They can be applied to the row separately. If row mutations finished successfully, they would be cleaned up.

Optionally, a retry strategy can be specified to re-attempt mutations on rows that return transient errors. This method will retry until all rows succeed or until the request deadline is reached. To specify a retry strategy of "do-nothing", a deadline of 0.0 can be specified.

Parameters
Name Description
rows list

List or other iterable of .DirectRow instances.

retry google.api_core.retry.Retry

(Optional) Retry delay and deadline arguments. To override, the default value DEFAULT_RETRY can be used and modified with the google.api_core.retry.Retry.with_delay method or the google.api_core.retry.Retry.with_deadline method.

Returns
Type Description
list A list of response statuses (google.rpc.status_pb2.Status) corresponding to success or failure of each row mutation sent. These will be in the same order as the rows.

mutations_batcher

mutations_batcher(flush_count=1000, max_row_bytes=5242880)

Factory to create a mutation batcher associated with this instance.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_mutations_batcher] :end-before: [END bigtable_mutations_batcher]

Parameters
Name Description
table class

class:Table .

flush_count int

(Optional) Maximum number of rows per batch. If it reaches the max number of rows it calls finish_batch() to mutate the current row batch. Default is FLUSH_COUNT (1000 rows).

max_row_bytes int

(Optional) Max number of row mutations size to flush. If it reaches the max number of row mutations size it calls finish_batch() to mutate the current row batch. Default is MAX_ROW_BYTES (5 MB).

read_row

read_row(row_key, filter_=None)

Read a single row from this table.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_read_row] :end-before: [END bigtable_read_row]

Parameters
Name Description
row_key bytes

The key of the row to read from.

filter_ .RowFilter

(Optional) The filter to apply to the contents of the row. If unset, returns the entire row.

Exceptions
Type Description
`ValueErro
Returns
Type Description
.PartialRowData, :data:NoneType The contents of the row if any chunks were returned in the response, otherwise :data:None.

read_rows

read_rows(start_key=None, end_key=None, limit=None, filter_=None, end_inclusive=False, row_set=None, retry=<google.api_core.retry.Retry object>)

Read rows from this table.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_read_rows] :end-before: [END bigtable_read_rows]

Parameters
Name Description
start_key bytes

(Optional) The beginning of a range of row keys to read from. The range will include start_key. If left empty, will be interpreted as the empty string.

end_key bytes

(Optional) The end of a range of row keys to read from. The range will not include end_key. If left empty, will be interpreted as an infinite string.

limit int

(Optional) The read will terminate after committing to N rows' worth of results. The default (zero) is to return all results.

filter_ .RowFilter

(Optional) The filter to apply to the contents of the specified row(s). If unset, reads every column in each row.

end_inclusive bool

(Optional) Whether the end_key should be considered inclusive. The default is False (exclusive).

row_set row_set.RowSet

(Optional) The row set containing multiple row keys and row_ranges.

retry google.api_core.retry.Retry

(Optional) Retry delay and deadline arguments. To override, the default value DEFAULT_RETRY_READ_ROWS can be used and modified with the google.api_core.retry.Retry.with_delay method or the google.api_core.retry.Retry.with_deadline method.

Returns
Type Description
.PartialRowsData A .PartialRowsData a generator for consuming the streamed results.

row

row(row_key, filter_=None, append=False)

Factory to create a row associated with this table.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_table_row] :end-before: [END bigtable_table_row]

Parameters
Name Description
row_key bytes

The key for the row being created.

filter_ .RowFilter

(Optional) Filter to be used for conditional mutations. See .ConditionalRow for more details.

append bool

(Optional) Flag to determine if the row should be used for append mutations.

Exceptions
Type Description
`ValueErro
Returns
Type Description
Row A row owned by this table.

sample_row_keys

sample_row_keys()

Read a sample of row keys in the table.

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_sample_row_keys] :end-before: [END bigtable_sample_row_keys]

The returned row keys will delimit contiguous sections of the table of approximately equal size, which can be used to break up the data for distributed tasks like mapreduces.

The elements in the iterator are a SampleRowKeys response and they have the properties offset_bytes and row_key. They occur in sorted order. The table might have contents before the first row key in the list and after the last one, but a key containing the empty string indicates "end of table" and will be the last response given, if present.

Returns
Type Description
GrpcRendezvous A cancel-able iterator. Can be consumed by calling next() or by casting to a list and can be cancelled by calling cancel().

truncate

truncate(timeout=None)

Truncate the table

For example:

.. literalinclude:: snippets_table.py :start-after: [START bigtable_truncate_table] :end-before: [END bigtable_truncate_table]

Parameter
Name Description
timeout float

(Optional) The amount of time, in seconds, to wait for the request to complete. :raise: google.api_core.exceptions.GoogleAPICallError: If the request failed for any reason. google.api_core.exceptions.RetryError: If the request failed due to a retryable error and retry attempts failed. ValueError: If the parameters are invalid.

yield_rows

yield_rows(**kwargs)

Read rows from this table.

Parameters
Name Description
start_key bytes

(Optional) The beginning of a range of row keys to read from. The range will include start_key. If left empty, will be interpreted as the empty string.

end_key bytes

(Optional) The end of a range of row keys to read from. The range will not include end_key. If left empty, will be interpreted as an infinite string.

limit int

(Optional) The read will terminate after committing to N rows' worth of results. The default (zero) is to return all results.

filter_ .RowFilter

(Optional) The filter to apply to the contents of the specified row(s). If unset, reads every column in each row.

row_set row_set.RowSet

(Optional) The row set containing multiple row keys and row_ranges.

Returns
Type Description
.PartialRowData A .PartialRowData for each row returned

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Last updated 2025年10月30日 UTC.