Method Unwind

Namespace

MongoDB.Driver

Assembly

MongoDB.Driver.dll

Unwind<TInput, TIntermediate, TOutput>(PipelineDefinition<TInput, TIntermediate>, FieldDefinition<TIntermediate>, AggregateUnwindOptions<TOutput>)

Appends an $unwind stage to the pipeline.

public static PipelineDefinition<TInput, TOutput> Unwind<TInput, TIntermediate, TOutput>(this PipelineDefinition<TInput, TIntermediate> pipeline, FieldDefinition<TIntermediate> field, AggregateUnwindOptions<TOutput> options = null)

Parameters

pipeline PipelineDefinition<TInput, TIntermediate>

The pipeline.

field FieldDefinition<TIntermediate>

The field.

options AggregateUnwindOptions<TOutput>

The options.

Returns

PipelineDefinition<TInput, TOutput>

A new pipeline with an additional stage.

Type Parameters

TInput

The type of the input documents.

TIntermediate

The type of the intermediate documents.

TOutput

The type of the output documents.

Unwind<TInput, TIntermediate>(PipelineDefinition<TInput, TIntermediate>, FieldDefinition<TIntermediate>, AggregateUnwindOptions<BsonDocument>)

Appends an unwind stage to the pipeline.

public static PipelineDefinition<TInput, BsonDocument> Unwind<TInput, TIntermediate>(this PipelineDefinition<TInput, TIntermediate> pipeline, FieldDefinition<TIntermediate> field, AggregateUnwindOptions<BsonDocument> options = null)

Parameters

pipeline PipelineDefinition<TInput, TIntermediate>

The pipeline.

field FieldDefinition<TIntermediate>

The field to unwind.

options AggregateUnwindOptions<BsonDocument>

The options.

Returns

PipelineDefinition<TInput, BsonDocument>

A new pipeline with an additional stage.

Type Parameters

TInput

The type of the input documents.

TIntermediate

The type of the intermediate documents.

Unwind<TInput, TIntermediate>(PipelineDefinition<TInput, TIntermediate>, Expression<Func<TIntermediate, object>>, AggregateUnwindOptions<BsonDocument>)

Appends an unwind stage to the pipeline.

public static PipelineDefinition<TInput, BsonDocument> Unwind<TInput, TIntermediate>(this PipelineDefinition<TInput, TIntermediate> pipeline, Expression<Func<TIntermediate, object>> field, AggregateUnwindOptions<BsonDocument> options = null)

Parameters

pipeline PipelineDefinition<TInput, TIntermediate>

The pipeline.

field Expression<Func<TIntermediate, object>>

The field to unwind.

options AggregateUnwindOptions<BsonDocument>

The options.

Returns

PipelineDefinition<TInput, BsonDocument>

A new pipeline with an additional stage.

Type Parameters

TInput

The type of the input documents.

TIntermediate

The type of the intermediate documents.

Unwind<TInput, TIntermediate, TOutput>(PipelineDefinition<TInput, TIntermediate>, Expression<Func<TIntermediate, object>>, AggregateUnwindOptions<TOutput>)

Appends an unwind stage to the pipeline.

public static PipelineDefinition<TInput, TOutput> Unwind<TInput, TIntermediate, TOutput>(this PipelineDefinition<TInput, TIntermediate> pipeline, Expression<Func<TIntermediate, object>> field, AggregateUnwindOptions<TOutput> options = null)

Parameters

pipeline PipelineDefinition<TInput, TIntermediate>

The pipeline.

field Expression<Func<TIntermediate, object>>

The field to unwind.

options AggregateUnwindOptions<TOutput>

The options.

Returns

PipelineDefinition<TInput, TOutput>

A new pipeline with an additional stage.

Type Parameters

TInput

The type of the input documents.

TIntermediate

The type of the intermediate documents.

TOutput

The type of the output documents.