Re: [GENERAL] Shouldn't B'1' = 1::bit be true?

<quote who="Tom Lane">
> "Thomas Swan" <tswan(at)idigx(dot)com> writes:
>> To convert low bits ot high bits you pad 0 bits on the left. To
>> convert
>> from high to low you strip bits off the left hand side. This allows
>> reasonable behavior.
>
> Unfortunately, the SQL spec is perfectly clear that you pad or strip
> zero bits on the *right* of the bit string. We cannot change that.
>

I was completely unaware of that fact. *must dig a deeper hole*

> It might have been better if we had defined int<->bit casts to treat
> the first bit of the bit string as the LSB of the integer. But we
> didn't, and it's probably too big a change to consider.
>

It would be a big change at least in the 7.x series. Maybe the change
could be tabled to an 8.x release.

Thomas