DryadLinqQueryableHashPartitionTSource, TKey Method (IQueryableTSource, ExpressionFuncTSource, TKey, Int32)DryadLINQ documentation
Hash partition a dataset.

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> HashPartition<TSource, TKey>(
	this IQueryable<TSource> source,
	Expression<Func<TSource, TKey>> keySelector,
	int partitionCount
)

Parameters

source
Type: System.LinqIQueryableTSource
the dataset to be partitioned
keySelector
Type: System.Linq.ExpressionsExpressionFuncTSource, TKey
The funtion to extract the key from a record
partitionCount
Type: SystemInt32
The number of partitioned to create

Type Parameters

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

Return Value

Type: IQueryableTSource
An IQueryable hash-partitioned according to a key

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