Re: BUG #8191: Wrong bit conversion

On 01/06/13 13:01, Gavin Flower wrote:
> On 01/06/13 12:29, John R Pierce wrote:
>> On 5/31/2013 4:29 PM, Gerald Luger wrote:
>>> Shouldn't I expect all results to be 000...0001?
>>>
>>> Otherwise it would be
>>> 1 != 1?
>>
>> SQL's BIT type is big endian, a hangover from its IBM mainframe 
>> heritage.
>>
>>
>>
>>
>>
> I don't think it has anything to do with byte sex (I know of 3 ways to 
> store integers in memory, and I suspect there are more !).
>
> Don't confuse how things are displayed with how they are stored in memory.
>
> Just that
> 1 = two to the power of zero
> so it seems logical to start numbering the bits to represent the 
> powers of 2.
>
>
> Cheers,
> Gavin
Hmm...

On second thoughts, it is strange that the first 2 examples affect bits 
on the left hand side!

So now I think, that all 3 examples should logically be:

RESULT:
"0000000000000000000000000000000000000000000000000000000000000001",

BUT, But, But...

It appears for varchar padding is done on the right hand side, so maybe that is why the first 2examples are as they are (suggestive, not proof!).


Cheers,
Gavin