Google Cloud Datastore v1 API - Class AggregationQuery.Types.Aggregation (4.9.0) 

public sealed class AggregationQuery.Types.Aggregation : IMessage<AggregationQuery.Types.Aggregation>, IEquatable<AggregationQuery.Types.Aggregation>, IDeepCloneable<AggregationQuery.Types.Aggregation>, IBufferMessage, IMessage

Reference documentation and code samples for the Google Cloud Datastore v1 API class AggregationQuery.Types.Aggregation.

Defines an aggregation that produces a single result.

Inheritance

object > AggregationQuery.Types.Aggregation

Namespace

Google.Cloud.Datastore.V1

Assembly

Google.Cloud.Datastore.V1.dll

Constructors

Aggregation()

public Aggregation()

Aggregation(Aggregation)

public Aggregation(AggregationQuery.Types.Aggregation other)
Parameter
NameDescription
otherAggregationQueryTypesAggregation

Properties

Alias

public string Alias { get; set; }

Optional. Optional name of the property to store the result of the aggregation.

If not provided, Datastore will pick a default name following the format property_<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 property_1,
  COUNT_UP_TO(3) AS count_up_to_3,
  COUNT(*) AS property_2
OVER (
  ...
);

Requires:

  • Must be unique across all aggregation aliases.
  • Conform to [entity property name][google.datastore.v1.Entity.properties] limitations.
Property Value
TypeDescription
string

Avg

public AggregationQuery.Types.Aggregation.Types.Avg Avg { get; set; }

Average aggregator.

Property Value
TypeDescription
AggregationQueryTypesAggregationTypesAvg

Count

public AggregationQuery.Types.Aggregation.Types.Count Count { get; set; }

Count aggregator.

Property Value
TypeDescription
AggregationQueryTypesAggregationTypesCount

OperatorCase

public AggregationQuery.Types.Aggregation.OperatorOneofCase OperatorCase { get; }
Property Value
TypeDescription
AggregationQueryTypesAggregationOperatorOneofCase

Sum

public AggregationQuery.Types.Aggregation.Types.Sum Sum { get; set; }

Sum aggregator.

Property Value
TypeDescription
AggregationQueryTypesAggregationTypesSum