@Test
public void multiColumn() throws Exception {

    ScanComparisons.Builder comparisons = new ScanComparisons.Builder();
    comparisons.addEqualityComparison(new Comparisons.NullComparison(Comparisons.Type.IS_NULL));
    comparisons.addInequalityComparison(new Comparisons.MultiColumnComparison(new Comparisons.SimpleComparison(Comparisons.Type.LESS_THAN, Tuple.from("xxx", "yyy"))));
    checkRange("([null, null],[null, xxx, yyy])", comparisons, context());
}