Shortcuts on this page
r m x toggle line displays
j k next/prev highlighted chunk
0 (zero) top of page
1 (one) first highlighted chunk
1# Copyright 2019 Google LLC
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7# http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
15import enum
18class AutoRowIDs(enum.Enum):
19 """How to handle automatic insert IDs when inserting rows as a stream."""
21 DISABLED = enum.auto()
22 GENERATE_UUID = enum.auto()
25class Compression(str, enum.Enum):
26 """The compression type to use for exported files. The default value is
27 :attr:`NONE`.
29 :attr:`DEFLATE` and :attr:`SNAPPY` are
30 only supported for Avro.
31 """
33 GZIP = "GZIP"
34 """Specifies GZIP format."""
36 DEFLATE = "DEFLATE"
37 """Specifies DEFLATE format."""
39 SNAPPY = "SNAPPY"
40 """Specifies SNAPPY format."""
42 ZSTD = "ZSTD"
43 """Specifies ZSTD format."""
45 NONE = "NONE"
46 """Specifies no compression."""
49class DecimalTargetType:
50 """The data types that could be used as a target type when converting decimal values.
52 https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#DecimalTargetType
54 .. versionadded:: 2.21.0
55 """
57 NUMERIC = "NUMERIC"
58 """Decimal values could be converted to NUMERIC type."""
60 BIGNUMERIC = "BIGNUMERIC"
61 """Decimal values could be converted to BIGNUMERIC type."""
63 STRING = "STRING"
64 """Decimal values could be converted to STRING type."""
67class CreateDisposition(object):
68 """Specifies whether the job is allowed to create new tables. The default
69 value is :attr:`CREATE_IF_NEEDED`.
71 Creation, truncation and append actions occur as one atomic update
72 upon job completion.
73 """
75 CREATE_IF_NEEDED = "CREATE_IF_NEEDED"
76 """If the table does not exist, BigQuery creates the table."""
78 CREATE_NEVER = "CREATE_NEVER"
79 """The table must already exist. If it does not, a 'notFound' error is
80 returned in the job result."""
83class DatasetView(enum.Enum):
84 """DatasetView specifies which dataset information is returned."""
86 DATASET_VIEW_UNSPECIFIED = "DATASET_VIEW_UNSPECIFIED"
87 """The default value. Currently maps to the FULL view."""
89 METADATA = "METADATA"
90 """View metadata information for the dataset, such as friendlyName,
91 description, labels, etc."""
93 ACL = "ACL"
94 """View ACL information for the dataset, which defines dataset access
95 for one or more entities."""
97 FULL = "FULL"
98 """View both dataset metadata and ACL information."""
101class DefaultPandasDTypes(enum.Enum):
102 """Default Pandas DataFrem DTypes to convert BigQuery data. These
103 Sentinel values are used instead of None to maintain backward compatibility,
104 and allow Pandas package is not available. For more information:
105 https://stackoverflow.com/a/60605919/101923
106 """
108 BOOL_DTYPE = object()
109 """Specifies default bool dtype"""
111 INT_DTYPE = object()
112 """Specifies default integer dtype"""
114 DATE_DTYPE = object()
115 """Specifies default date dtype"""
117 TIME_DTYPE = object()
118 """Specifies default time dtype"""
120 RANGE_DATE_DTYPE = object()
121 """Specifies default range date dtype"""
123 RANGE_DATETIME_DTYPE = object()
124 """Specifies default range datetime dtype"""
126 RANGE_TIMESTAMP_DTYPE = object()
127 """Specifies default range timestamp dtype"""
130class DestinationFormat(object):
131 """The exported file format. The default value is :attr:`CSV`.
133 Tables with nested or repeated fields cannot be exported as CSV.
134 """
136 CSV = "CSV"
137 """Specifies CSV format."""
139 NEWLINE_DELIMITED_JSON = "NEWLINE_DELIMITED_JSON"
140 """Specifies newline delimited JSON format."""
142 AVRO = "AVRO"
143 """Specifies Avro format."""
145 PARQUET = "PARQUET"
146 """Specifies Parquet format."""
149class Encoding(object):
150 """The character encoding of the data. The default is :attr:`UTF_8`.
152 BigQuery decodes the data after the raw, binary data has been
153 split using the values of the quote and fieldDelimiter properties.
154 """
156 UTF_8 = "UTF-8"
157 """Specifies UTF-8 encoding."""
159 ISO_8859_1 = "ISO-8859-1"
160 """Specifies ISO-8859-1 encoding."""
163class QueryPriority(object):
164 """Specifies a priority for the query. The default value is
165 :attr:`INTERACTIVE`.
166 """
168 INTERACTIVE = "INTERACTIVE"
169 """Specifies interactive priority."""
171 BATCH = "BATCH"
172 """Specifies batch priority."""
175class QueryApiMethod(str, enum.Enum):
176 """API method used to start the query. The default value is
177 :attr:`INSERT`.
178 """
180 INSERT = "INSERT"
181 """Submit a query job by using the `jobs.insert REST API method
182 <https://cloud.google.com/bigquery/docs/reference/rest/v2/jobs/insert>`_.
184 This supports all job configuration options.
185 """
187 QUERY = "QUERY"
188 """Submit a query job by using the `jobs.query REST API method
189 <https://cloud.google.com/bigquery/docs/reference/rest/v2/jobs/query>`_.
191 Differences from ``INSERT``:
193 * Many parameters and job configuration options, including job ID and
194 destination table, cannot be used
195 with this API method. See the `jobs.query REST API documentation
196 <https://cloud.google.com/bigquery/docs/reference/rest/v2/jobs/query>`_ for
197 the complete list of supported configuration options.
199 * API blocks up to a specified timeout, waiting for the query to
200 finish.
202 * The full job resource (including job statistics) may not be available.
203 Call :meth:`~google.cloud.bigquery.job.QueryJob.reload` or
204 :meth:`~google.cloud.bigquery.client.Client.get_job` to get full job
205 statistics and configuration.
207 * :meth:`~google.cloud.bigquery.Client.query` can raise API exceptions if
208 the query fails, whereas the same errors don't appear until calling
209 :meth:`~google.cloud.bigquery.job.QueryJob.result` when the ``INSERT``
210 API method is used.
211 """
214class SchemaUpdateOption(object):
215 """Specifies an update to the destination table schema as a side effect of
216 a load job.
217 """
219 ALLOW_FIELD_ADDITION = "ALLOW_FIELD_ADDITION"
220 """Allow adding a nullable field to the schema."""
222 ALLOW_FIELD_RELAXATION = "ALLOW_FIELD_RELAXATION"
223 """Allow relaxing a required field in the original schema to nullable."""
226class SourceFormat(object):
227 """The format of the data files. The default value is :attr:`CSV`.
229 Note that the set of allowed values for loading data is different
230 than the set used for external data sources (see
231 :class:`~google.cloud.bigquery.external_config.ExternalSourceFormat`).
232 """
234 CSV = "CSV"
235 """Specifies CSV format."""
237 DATASTORE_BACKUP = "DATASTORE_BACKUP"
238 """Specifies datastore backup format"""
240 NEWLINE_DELIMITED_JSON = "NEWLINE_DELIMITED_JSON"
241 """Specifies newline delimited JSON format."""
243 AVRO = "AVRO"
244 """Specifies Avro format."""
246 PARQUET = "PARQUET"
247 """Specifies Parquet format."""
249 ORC = "ORC"
250 """Specifies Orc format."""
253class KeyResultStatementKind:
254 """Determines which statement in the script represents the "key result".
256 The "key result" is used to populate the schema and query results of the script job.
258 https://cloud.google.com/bigquery/docs/reference/rest/v2/Job#keyresultstatementkind
259 """
261 KEY_RESULT_STATEMENT_KIND_UNSPECIFIED = "KEY_RESULT_STATEMENT_KIND_UNSPECIFIED"
262 LAST = "LAST"
263 FIRST_SELECT = "FIRST_SELECT"
266class StandardSqlTypeNames(str, enum.Enum):
267 """Enum of allowed SQL type names in schema.SchemaField.
269 Datatype used in GoogleSQL.
270 """
272 def _generate_next_value_(name, start, count, last_values):
273 return name
275 TYPE_KIND_UNSPECIFIED = enum.auto()
276 INT64 = enum.auto()
277 BOOL = enum.auto()
278 FLOAT64 = enum.auto()
279 STRING = enum.auto()
280 BYTES = enum.auto()
281 TIMESTAMP = enum.auto()
282 DATE = enum.auto()
283 TIME = enum.auto()
284 DATETIME = enum.auto()
285 INTERVAL = enum.auto()
286 GEOGRAPHY = enum.auto()
287 NUMERIC = enum.auto()
288 BIGNUMERIC = enum.auto()
289 JSON = enum.auto()
290 ARRAY = enum.auto()
291 STRUCT = enum.auto()
292 RANGE = enum.auto()
293 # NOTE: FOREIGN acts as a wrapper for data types
294 # not natively understood by BigQuery unless translated
295 FOREIGN = enum.auto()
298class EntityTypes(str, enum.Enum):
299 """Enum of allowed entity type names in AccessEntry"""
301 USER_BY_EMAIL = "userByEmail"
302 GROUP_BY_EMAIL = "groupByEmail"
303 DOMAIN = "domain"
304 DATASET = "dataset"
305 SPECIAL_GROUP = "specialGroup"
306 VIEW = "view"
307 IAM_MEMBER = "iamMember"
308 ROUTINE = "routine"
311# See also: https://cloud.google.com/bigquery/data-types#legacy_sql_data_types
312# and https://cloud.google.com/bigquery/docs/reference/standard-sql/data-types
313class SqlTypeNames(str, enum.Enum):
314 """Enum of allowed SQL type names in schema.SchemaField.
316 Datatype used in Legacy SQL.
317 """
319 STRING = "STRING"
320 BYTES = "BYTES"
321 INTEGER = "INTEGER"
322 INT64 = "INTEGER"
323 FLOAT = "FLOAT"
324 FLOAT64 = "FLOAT"
325 DECIMAL = NUMERIC = "NUMERIC"
326 BIGDECIMAL = BIGNUMERIC = "BIGNUMERIC"
327 BOOLEAN = "BOOLEAN"
328 BOOL = "BOOLEAN"
329 GEOGRAPHY = "GEOGRAPHY" # NOTE: not available in legacy types
330 RECORD = "RECORD"
331 STRUCT = "RECORD"
332 TIMESTAMP = "TIMESTAMP"
333 DATE = "DATE"
334 TIME = "TIME"
335 DATETIME = "DATETIME"
336 INTERVAL = "INTERVAL" # NOTE: not available in legacy types
337 RANGE = "RANGE" # NOTE: not available in legacy types
338 # NOTE: FOREIGN acts as a wrapper for data types
339 # not natively understood by BigQuery unless translated
340 FOREIGN = "FOREIGN"
343class WriteDisposition(object):
344 """Specifies the action that occurs if destination table already exists.
346 The default value is :attr:`WRITE_APPEND`.
348 Each action is atomic and only occurs if BigQuery is able to complete
349 the job successfully. Creation, truncation and append actions occur as one
350 atomic update upon job completion.
351 """
353 WRITE_APPEND = "WRITE_APPEND"
354 """If the table already exists, BigQuery appends the data to the table."""
356 WRITE_TRUNCATE = "WRITE_TRUNCATE"
357 """If the table already exists, BigQuery overwrites the table data."""
359 WRITE_TRUNCATE_DATA = "WRITE_TRUNCATE_DATA"
360 """For existing tables, truncate data but preserve existing schema
361 and constraints."""
363 WRITE_EMPTY = "WRITE_EMPTY"
364 """If the table already exists and contains data, a 'duplicate' error is
365 returned in the job result."""
368class DeterminismLevel:
369 """Specifies determinism level for JavaScript user-defined functions (UDFs).
371 https://cloud.google.com/bigquery/docs/reference/rest/v2/routines#DeterminismLevel
372 """
374 DETERMINISM_LEVEL_UNSPECIFIED = "DETERMINISM_LEVEL_UNSPECIFIED"
375 """The determinism of the UDF is unspecified."""
377 DETERMINISTIC = "DETERMINISTIC"
378 """The UDF is deterministic, meaning that 2 function calls with the same inputs
379 always produce the same result, even across 2 query runs."""
381 NOT_DETERMINISTIC = "NOT_DETERMINISTIC"
382 """The UDF is not deterministic."""
385class RoundingMode(str, enum.Enum):
386 """Rounding mode options that can be used when storing NUMERIC or BIGNUMERIC
387 values.
389 ROUNDING_MODE_UNSPECIFIED: will default to using ROUND_HALF_AWAY_FROM_ZERO.
391 ROUND_HALF_AWAY_FROM_ZERO: rounds half values away from zero when applying
392 precision and scale upon writing of NUMERIC and BIGNUMERIC values.
393 For Scale: 0
394 * 1.1, 1.2, 1.3, 1.4 => 1
395 * 1.5, 1.6, 1.7, 1.8, 1.9 => 2
397 ROUND_HALF_EVEN: rounds half values to the nearest even value when applying
398 precision and scale upon writing of NUMERIC and BIGNUMERIC values.
399 For Scale: 0
400 * 1.1, 1.2, 1.3, 1.4 => 1
401 * 1.5 => 2
402 * 1.6, 1.7, 1.8, 1.9 => 2
403 * 2.5 => 2
404 """
406 def _generate_next_value_(name, start, count, last_values):
407 return name
409 ROUNDING_MODE_UNSPECIFIED = enum.auto()
410 ROUND_HALF_AWAY_FROM_ZERO = enum.auto()
411 ROUND_HALF_EVEN = enum.auto()
414class BigLakeFileFormat(object):
415 FILE_FORMAT_UNSPECIFIED = "FILE_FORMAT_UNSPECIFIED"
416 """The default unspecified value."""
418 PARQUET = "PARQUET"
419 """Apache Parquet format."""
422class BigLakeTableFormat(object):
423 TABLE_FORMAT_UNSPECIFIED = "TABLE_FORMAT_UNSPECIFIED"
424 """The default unspecified value."""
426 ICEBERG = "ICEBERG"
427 """Apache Iceberg format."""
430class UpdateMode(enum.Enum):
431 """Specifies the kind of information to update in a dataset."""
433 UPDATE_MODE_UNSPECIFIED = "UPDATE_MODE_UNSPECIFIED"
434 """The default value. Behavior defaults to UPDATE_FULL."""
436 UPDATE_METADATA = "UPDATE_METADATA"
437 """Includes metadata information for the dataset, such as friendlyName,
438 description, labels, etc."""
440 UPDATE_ACL = "UPDATE_ACL"
441 """Includes ACL information for the dataset, which defines dataset access
442 for one or more entities."""
444 UPDATE_FULL = "UPDATE_FULL"
445 """Includes both dataset metadata and ACL information."""
448class JobCreationMode(object):
449 """Documented values for Job Creation Mode."""
451 JOB_CREATION_MODE_UNSPECIFIED = "JOB_CREATION_MODE_UNSPECIFIED"
452 """Job creation mode is unspecified."""
454 JOB_CREATION_REQUIRED = "JOB_CREATION_REQUIRED"
455 """Job creation is always required."""
457 JOB_CREATION_OPTIONAL = "JOB_CREATION_OPTIONAL"
458 """Job creation is optional.
460 Returning immediate results is prioritized.
461 BigQuery will automatically determine if a Job needs to be created.
462 The conditions under which BigQuery can decide to not create a Job are
463 subject to change.
464 """