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

<ExtensionAttribute> 
Public Shared Function HashPartition(Of TSource, TKey) ( 
	source As IQueryable(Of TSource),
	keySelector As Expression(Of Func(Of TSource, TKey)),
	partitionCount As Integer
) As IQueryable(Of TSource)

public:
[ExtensionAttribute]
generic<typename TSource, typename TKey>
static IQueryable<TSource>^ HashPartition(
	IQueryable<TSource>^ source, 
	Expression<Func<TSource, TKey>^>^ keySelector, 
	int partitionCount
)