@ScalarOperator(LESS_THAN)
    @SqlType(StandardTypes.BOOLEAN)
    public static boolean lessThan(@SqlType(StandardTypes.BOOLEAN) boolean left, @SqlType(StandardTypes.BOOLEAN) boolean right)
    {
        return !left && right;
    }
@Test
    public void testLessThan()
    {
        assertFunction("true < true", BOOLEAN, false);
        assertFunction("true < false", BOOLEAN, false);
        assertFunction("false < true", BOOLEAN, true);
        assertFunction("false < false", BOOLEAN, false);
    }