DryadLinqQueryableAssumeHashPartitionTSource, TKey Method (IQueryableTSource, ExpressionFuncTSource, TKey, IEqualityComparerTKey)DryadLINQ documentation
Instructs DryadLINQ to assume that the dataset is hash partitioned.

Namespace: Microsoft.Research.DryadLinq
Assembly: Microsoft.Research.DryadLinq (in Microsoft.Research.DryadLinq.dll) Version: 0.2.1.0 (0.2.1.0)
Syntax

public static IQueryable<TSource> AssumeHashPartition<TSource, TKey>(
	this IQueryable<TSource> source,
	Expression<Func<TSource, TKey>> keySelector,
	IEqualityComparer<TKey> comparer
)

Parameters

source
Type: System.LinqIQueryableTSource
The input dataset
keySelector
Type: System.Linq.ExpressionsExpressionFuncTSource, TKey
The function to extract the key from a record
comparer
Type: System.Collections.GenericIEqualityComparerTKey
An equality comparer to compute the hash code of a key

Type Parameters

TSource
The type of the records of the dataset
TKey
The type of the key on which partition is based

Return Value

Type: IQueryableTSource
The same dataset as input

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQueryableTSource. 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

Reference