Cloud Firestore V1 Client - Class Aggregation (1.32.0)

Reference documentation and code samples for the Cloud Firestore V1 Client class Aggregation.

Defines an aggregation that produces a single result.

Generated from protobuf message google.firestore.v1.StructuredAggregationQuery.Aggregation

Constructor.

Count aggregator.

Count aggregator.

Optional. Optional name of the field to store the result of the aggregation into.

If not provided, Firestore will pick a default name following the format field_<incremental_id++>. For example:

AGGREGATE
  COUNT_UP_TO(1) AS count_up_to_1,
  COUNT_UP_TO(2),
  COUNT_UP_TO(3) AS count_up_to_3,
  COUNT(*)
OVER (
  ...
);

becomes:

AGGREGATE
  COUNT_UP_TO(1) AS count_up_to_1,
  COUNT_UP_TO(2) AS field_1,
  COUNT_UP_TO(3) AS count_up_to_3,
  COUNT(*) AS field_2
OVER (
  ...
);

Requires:

• Must be unique across all aggregation aliases.
• Conform to document field name limitations.

Optional. Optional name of the field to store the result of the aggregation into.

If not provided, Firestore will pick a default name following the format field_<incremental_id++>. For example:

AGGREGATE
  COUNT_UP_TO(1) AS count_up_to_1,
  COUNT_UP_TO(2),
  COUNT_UP_TO(3) AS count_up_to_3,
  COUNT(*)
OVER (
  ...
);

becomes:

AGGREGATE
  COUNT_UP_TO(1) AS count_up_to_1,
  COUNT_UP_TO(2) AS field_1,
  COUNT_UP_TO(3) AS count_up_to_3,
  COUNT(*) AS field_2
OVER (
  ...
);

Requires:

• Must be unique across all aggregation aliases.
• Conform to document field name limitations.