PipelineDefinitionBuilderBucketAutoTInput, TIntermediate, TValue Method (PipelineDefinitionTInput, TIntermediate, ExpressionFuncTIntermediate, TValue, Int32, AggregateBucketAutoOptions, ExpressionTranslationOptions) |
Appends a $bucketAuto stage to the pipeline.
Namespace:
MongoDB.Driver
Assembly:
MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.8.0+cc573f3e1f48f39162b4b680e921a623e127e8fa
Syntax public static PipelineDefinition<TInput, AggregateBucketAutoResult<TValue>> BucketAuto<TInput, TIntermediate, TValue>(
this PipelineDefinition<TInput, TIntermediate> pipeline,
Expression<Func<TIntermediate, TValue>> groupBy,
int buckets,
AggregateBucketAutoOptions options = null,
ExpressionTranslationOptions translationOptions = null
)
<ExtensionAttribute>
Public Shared Function BucketAuto(Of TInput, TIntermediate, TValue) (
pipeline As PipelineDefinition(Of TInput, TIntermediate),
groupBy As Expression(Of Func(Of TIntermediate, TValue)),
buckets As Integer,
Optional options As AggregateBucketAutoOptions = Nothing,
Optional translationOptions As ExpressionTranslationOptions = Nothing
) As PipelineDefinition(Of TInput, AggregateBucketAutoResult(Of TValue))
[<ExtensionAttribute>]
static member BucketAuto :
pipeline : PipelineDefinition<'TInput, 'TIntermediate> *
groupBy : Expression<Func<'TIntermediate, 'TValue>> *
buckets : int *
?options : AggregateBucketAutoOptions *
?translationOptions : ExpressionTranslationOptions
(* Defaults:
let _options = defaultArg options null
let _translationOptions = defaultArg translationOptions null
*)
-> PipelineDefinition<'TInput, AggregateBucketAutoResult<'TValue>>
Parameters
- pipeline
- Type: MongoDB.DriverPipelineDefinitionTInput, TIntermediate
The pipeline. - groupBy
- Type: System.Linq.ExpressionsExpressionFuncTIntermediate, TValue
The group by expression. - buckets
- Type: SystemInt32
The number of buckets. - options (Optional)
- Type: MongoDB.DriverAggregateBucketAutoOptions
The options (optional). - translationOptions (Optional)
- Type: MongoDB.DriverExpressionTranslationOptions
The translation options.
Type Parameters
- TInput
- The type of the input documents.
- TIntermediate
- The type of the intermediate documents.
- TValue
- The type of the value.
Return Value
Type:
PipelineDefinitionTInput,
AggregateBucketAutoResultTValue
The fluent aggregate interface.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type
PipelineDefinitionTInput,
TIntermediate. When you use instance method syntax to call this method, omit the first parameter. For more information, see
Extension Methods (Visual Basic) or
Extension Methods (C# Programming Guide).
See Also