public GroupJoinExpression(
	Type setElementType,
	SetExpression left,
	SetExpression right,
	Expression leftSelector,
	Expression rightSelector,
	ProjectionExpression resultProjection
)

Public Sub New ( 
	setElementType As Type,
	left As SetExpression,
	right As SetExpression,
	leftSelector As Expression,
	rightSelector As Expression,
	resultProjection As ProjectionExpression
)