@ConstantFunction(name = "bitxor", argTypes = {BIGINT, BIGINT}, returnType = BIGINT)
    public static ConstantOperator bitxorBigint(ConstantOperator first, ConstantOperator second) {
        return ConstantOperator.createBigint(first.getBigint() ^ second.getBigint());
    }
@Test
    public void bitxorBigint() {
        assertEquals(0, ScalarOperatorFunctions.bitxorBigint(O_BI_100, O_BI_100).getBigint());
    }