@ConstantFunction(name = "bitShiftLeft", argTypes = {LARGEINT, BIGINT}, returnType = LARGEINT)
    public static ConstantOperator bitShiftLeftLargeInt(ConstantOperator first, ConstantOperator second) {
        return ConstantOperator.createLargeInt(first.getLargeInt().shiftLeft((int) second.getBigint()));
    }
@Test
    public void bitShiftLeftLargeInt() {
        assertEquals("800", ScalarOperatorFunctions.bitShiftLeftLargeInt(O_LI_100, O_BI_3).getLargeInt().toString());
    }