Module query (3.3.6)

Version 3.3.6

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BigQuery query processing.

Classes

ArrayQueryParameter

ArrayQueryParameter(name, array_type, values)

Named / positional query parameters for array values.

Parameters

Name	Description
name	Optional[str] Parameter name, used via @foo syntax. If None, the parameter can only be addressed via position (?).
array_type	Union[str, ScalarQueryParameterType, StructQueryParameterType] The type of array elements. If given as a string, it must be one of 'STRING', 'INT64', 'FLOAT64', 'NUMERIC', 'BIGNUMERIC', 'BOOL', 'TIMESTAMP', 'DATE', or 'STRUCT'/'RECORD'. If the type is 'STRUCT'/'RECORD' and values is empty, the exact item type cannot be deduced, thus a StructQueryParameterType instance needs to be passed in.
values	List[appropriate type] The parameter array values.

ArrayQueryParameterType

ArrayQueryParameterType(array_type, *, name=None, description=None)

Type representation for array query parameters.

Parameters

Name	Description
array_type	Union[ScalarQueryParameterType, StructQueryParameterType] The type of array elements.
name	Optional[str] The name of the query parameter. Primarily used if the type is one of the subfields in StructQueryParameterType instance.
description	Optional[str] The query parameter description. Primarily used if the type is one of the subfields in StructQueryParameterType instance.

ConnectionProperty

ConnectionProperty(key: str = "", value: str = "")

A connection-level property to customize query behavior.

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

ScalarQueryParameter

ScalarQueryParameter(
    name: Optional[str],
    type_: Optional[Union[str, google.cloud.bigquery.query.ScalarQueryParameterType]],
    value: Optional[
        Union[str, int, float, decimal.Decimal, bool, datetime.datetime, datetime.date]
    ],
)

Named / positional query parameters for scalar values.

ScalarQueryParameterType

ScalarQueryParameterType(type_, *, name=None, description=None)

Type representation for scalar query parameters.

Parameters

Name	Description
type_	str One of 'STRING', 'INT64', 'FLOAT64', 'NUMERIC', 'BOOL', 'TIMESTAMP', 'DATETIME', or 'DATE'.
name	Optional[str] The name of the query parameter. Primarily used if the type is one of the subfields in StructQueryParameterType instance.
description	Optional[str] The query parameter description. Primarily used if the type is one of the subfields in StructQueryParameterType instance.

SqlParameterScalarTypes

SqlParameterScalarTypes()

Supported scalar SQL query parameter types as type objects.

StructQueryParameter

StructQueryParameter(name, *sub_params)

Named / positional query parameters for struct values.

Parameter

Name	Description
name	Optional[str] Parameter name, used via @foo syntax. If None, the parameter can only be addressed via position (?).

StructQueryParameterType

StructQueryParameterType(*fields, name=None, description=None)

Type representation for struct query parameters.

Parameters

Name	Description
fields	Iterable[Union[ ArrayQueryParameterType, ScalarQueryParameterType, StructQueryParameterType ]] An non-empty iterable describing the struct's field types.
name	Optional[str] The name of the query parameter. Primarily used if the type is one of the subfields in StructQueryParameterType instance.
description	Optional[str] The query parameter description. Primarily used if the type is one of the subfields in StructQueryParameterType instance.

UDFResource

UDFResource(udf_type, value)

Describe a single user-defined function (UDF) resource.

Parameters

Name	Description
udf_type	str The type of the resource ('inlineCode' or 'resourceUri')
value	str See: https://cloud.google.com/bigquery/user-defined-functions#api The inline code or resource URI.