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IMongoCollection<TDocument>.MapReduce<TResult> Method (IClientSessionHandle, BsonJavaScript, BsonJavaScript, MapReduceOptions<TDocument, TResult>, CancellationToken)

Executes a map-reduce command.

Namespace:  MongoDB.Driver
Assembly:  MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.10.0+569905ff5e778c38ea19d9d0392496a83e1704ed
Syntax
IAsyncCursor<TResult> MapReduce<TResult>(
	IClientSessionHandle session,
	BsonJavaScript map,
	BsonJavaScript reduce,
	MapReduceOptions<TDocument, TResult> options = null,
	CancellationToken cancellationToken = null
)

Parameters

session
Type: MongoDB.Driver.IClientSessionHandle
The session.
map
Type: MongoDB.Bson.BsonJavaScript
The map function.
reduce
Type: MongoDB.Bson.BsonJavaScript
The reduce function.
options (Optional)
Type: MongoDB.Driver.MapReduceOptions<TDocument, TResult>
The options.
cancellationToken (Optional)
Type: System.Threading.CancellationToken
The cancellation token.

Type Parameters

TResult
The type of the result.

Return Value

Type: IAsyncCursor<TResult>
A cursor.
See Also