Function NewUniqueAttributeIterator

pkg/database/iterators.go:97–103

NewUniqueAttributeIterator creates a new UniqueAttributeIterator from two AttributeIterators.

(iterator1, iterator2 *AttributeIterator)

// NewUniqueAttributeIterator creates a new UniqueAttributeIterator from two AttributeIterators.
func NewUniqueAttributeIterator(iterator1, iterator2 *AttributeIterator) *UniqueAttributeIterator {
	return &UniqueAttributeIterator{
		iterator1: iterator1,
		iterator2: iterator2,
		visited:   make(map[string]bool), // Initialize an empty map for visited Tuples
	}
}

// HasNext checks if there is a next Tuple in either of the two TupleIterators.
func (i *UniqueAttributeIterator) HasNext() bool {