Function demo_basic_range_queries

python/examples/range_queries.py:21–64

Demonstrate basic range query functionality.

()

def demo_basic_range_queries():
    """Demonstrate basic range query functionality."""
    print("=== Basic Range Queries ===\n")

    tree = BPlusTreeMap(capacity=8)

    # Add some test data
    data = {
        1: "January",
        2: "February",
        3: "March",
        4: "April",
        5: "May",
        6: "June",
        7: "July",
        8: "August",
        9: "September",
        10: "October",
        11: "November",
        12: "December",
    }
    tree.update(data)

    print("Full dataset:")
    for key, value in tree.items():
        print(f"  {key}: {value}")

    print("\n1. Range queries with start and end")
    print("   Months 3-6 (Spring/Early Summer):")
    for key, value in tree.range(3, 7):  # End is exclusive
        print(f"     {key}: {value}")

    print("\n2. Open-ended ranges")
    print("   From month 9 onwards (Fall/Winter):")
    for key, value in tree.range(9, None):
        print(f"     {key}: {value}")

    print("\n   Up to month 3 (Winter/Early Spring):")
    for key, value in tree.range(None, 4):  # End is exclusive
        print(f"     {key}: {value}")

    print("\n3. Single month 'range':")
    for key, value in tree.range(6, 7):  # Just June
        print(f"     {key}: {value}")


def demo_practical_use_cases():