Firestore API - Class AggregateField (3.5.1)

public sealed class AggregateField : IEquatable<AggregateField>

Reference documentation and code samples for the Firestore API class AggregateField.

Represents a single aggregation within an AggregateQuery.

Inheritance

object > AggregateField

Implements

IEquatable AggregateField

Inherited Members

object.GetType()

object.ToString()

Namespace

Google.Cloud.Firestore

Assembly

Google.Cloud.Firestore.dll

Properties

Alias

public string Alias { get; }

The alias for this aggregate field. This is either specified explicitly on construction, or may be defaulted.

Property Value
Type	Description
`string`

Methods

Average(string, string)

public static AggregateField Average(string field, string alias = null)

It uses the server side aggregation Google.Cloud.Firestore.V1.StructuredAggregationQuery.Types.Aggregation.Avg representing a server-side average aggregation function.

Parameters
Name	Description
`field`	`string` The field on which the average aggregation is performed. Must not be null.
`alias`	`string` Optional alias to identify the result of the aggregation in AggregateQuerySnapshot. If this is null, an alias of the form "Avg_{field}" is used.

Returns
Type	Description
`AggregateField`	Returns a new instance of AggregateField.

Count()

public static AggregateField Count()

Creates an AggregateField representing a server-side count aggregation function. The COUNT(*) aggregation function operates on the entire document so it does not require a field reference.

Returns
Type	Description
`AggregateField`	Returns a new instance of AggregateField.

GetHashCode()

public override int GetHashCode()

Serves as the default hash function.

Returns
Type	Description
`int`	A hash code for the current object.

Overrides

object.GetHashCode()

Sum(string, string)

public static AggregateField Sum(string field, string alias = null)

Creates an AggregateField representing a server-side sum aggregation function.

Parameters
Name	Description
`field`	`string` The field on which the sum aggregation is performed. Must not be null.
`alias`	`string` Optional alias to identify the result of the aggregation in AggregateQuerySnapshot. If this is null, an alias of the form "Sum_{field}" is used.

Returns
Type	Description
`AggregateField`	Returns a new instance of AggregateField.