J-cube -

"dimensions": ["Time", "Product"], "data": [ "Time.Year": 2025, "Product.Category": "Electronics", "sales": 1200.0, "units": 5 ]

// Insert facts cube.loadFact(new Fact() .dim("Time.Year", 2025) .dim("Product.Category", "Electronics") .measure("sales", 1200.0) .measure("units", 5)); j-cube

Tests on a synthetic dataset of 500,000 facts (4 dimensions, 2 measures): "dimensions": ["Time", "Product"], "data": [ "Time