@ScalarOperator(GREATER_THAN)
    @SqlType(StandardTypes.BOOLEAN)
    public static boolean greaterThan(@SqlType(StandardTypes.BOOLEAN) boolean left, @SqlType(StandardTypes.BOOLEAN) boolean right)
    {
        return left && !right;
    }
@Test
    public void testGreaterThan()
    {
        assertFunction("true > true", BOOLEAN, false);
        assertFunction("true > false", BOOLEAN, true);
        assertFunction("false > true", BOOLEAN, false);
        assertFunction("false > false", BOOLEAN, false);
    }