Class BaseAggregationQuery (2.21.0)

BaseAggregationQuery(nested_query, alias: typing.Optional[str] = None)

Represents an aggregation query to the Firestore API.

Methods

add_aggregation

add_aggregation(
    aggregation: google.cloud.firestore_v1.base_aggregation.BaseAggregation,
) -> None

Adds an aggregation operation to the nested query

Parameter
Name	Description
`aggregation`	`BaseAggregation` An aggregation operation, e.g. a CountAggregation

add_aggregations

add_aggregations(
    aggregations: typing.List[
        google.cloud.firestore_v1.base_aggregation.BaseAggregation
    ],
) -> None

Adds a list of aggregations to the nested query

Parameter
Name	Description
`aggregations`	`list` a list of aggregation operations

avg

avg(
    field_ref: str | google.cloud.firestore_v1.field_path.FieldPath,
    alias: typing.Optional[str] = None,
)

Adds an avg over the nested query

count

count(alias: typing.Optional[str] = None)

Adds a count over the nested query

get

get(
    transaction=None,
    retry: Union[
        retries.Retry, retries.AsyncRetry, None, object
    ] = _MethodDefault._DEFAULT_VALUE,
    timeout: float | None = None,
    *,
    explain_options: Optional[ExplainOptions] = None
) -> (
    QueryResultsList[AggregationResult]
    | Coroutine[Any, Any, List[List[AggregationResult]]]
)

Runs the aggregation query.

This sends a RunAggregationQuery RPC and returns a list of aggregation results in the stream of RunAggregationQueryResponse messages.

Parameters
Name	Description
`retry`	`google.api_core.retry.Retry` Designation of what errors, if any, should be retried. Defaults to a system-specified policy.
`timeout`	`float` The timeout for this request. Defaults to a system-specified value.

Returns
Type	Description
`(QueryResultsList[List[AggregationResult]] Coroutine[Any, Any, List[List[AggregationResult]]])`	The aggregation query results.

stream

stream(
    transaction: Optional[transaction.Transaction] = None,
    retry: (
        retries.Retry | retries.AsyncRetry | object | None
    ) = _MethodDefault._DEFAULT_VALUE,
    timeout: Optional[float] = None,
    *,
    explain_options: Optional[ExplainOptions] = None
) -> (
    StreamGenerator[List[AggregationResult]]
    | AsyncStreamGenerator[List[AggregationResult]]
)