PipelineStageDefinitionBuilderBucketTInput, TValue, TOutput Method (ExpressionFuncTInput, TValue, IEnumerableTValue, ExpressionFuncIGroupingTValue, TInput, TOutput, AggregateBucketOptionsTValue, ExpressionTranslationOptions) |
Creates a $bucket stage.
Namespace:
MongoDB.Driver
Assembly:
MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.11.0+cb27a82ea70620ad1acad8058809be8302ae4f2a
Syntax public static PipelineStageDefinition<TInput, TOutput> Bucket<TInput, TValue, TOutput>(
Expression<Func<TInput, TValue>> groupBy,
IEnumerable<TValue> boundaries,
Expression<Func<IGrouping<TValue, TInput>, TOutput>> output,
AggregateBucketOptions<TValue> options = null,
ExpressionTranslationOptions translationOptions = null
)
Public Shared Function Bucket(Of TInput, TValue, TOutput) (
groupBy As Expression(Of Func(Of TInput, TValue)),
boundaries As IEnumerable(Of TValue),
output As Expression(Of Func(Of IGrouping(Of TValue, TInput), TOutput)),
Optional options As AggregateBucketOptions(Of TValue) = Nothing,
Optional translationOptions As ExpressionTranslationOptions = Nothing
) As PipelineStageDefinition(Of TInput, TOutput)
static member Bucket :
groupBy : Expression<Func<'TInput, 'TValue>> *
boundaries : IEnumerable<'TValue> *
output : Expression<Func<IGrouping<'TValue, 'TInput>, 'TOutput>> *
?options : AggregateBucketOptions<'TValue> *
?translationOptions : ExpressionTranslationOptions
(* Defaults:
let _options = defaultArg options null
let _translationOptions = defaultArg translationOptions null
*)
-> PipelineStageDefinition<'TInput, 'TOutput>
Parameters
- groupBy
- Type: System.Linq.ExpressionsExpressionFuncTInput, TValue
The group by expression. - boundaries
- Type: System.Collections.GenericIEnumerableTValue
The boundaries. - output
- Type: System.Linq.ExpressionsExpressionFuncIGroupingTValue, TInput, TOutput
The output projection. - options (Optional)
- Type: MongoDB.DriverAggregateBucketOptionsTValue
The options. - translationOptions (Optional)
- Type: MongoDB.DriverExpressionTranslationOptions
The translation options.
Type Parameters
- TInput
- The type of the input documents.
- TValue
- The type of the values.
- TOutput
- The type of the output documents.
Return Value
Type:
PipelineStageDefinitionTInput,
TOutputThe stage.
See Also