On Thu, 25 Oct 2001, Alexey Prohorenko wrote:
> I am new to PostgreSQL -- (I am migrating from MySQL), so I have
> some, may be "stupid", but still interesting questions.
> Interesting for me. :-)
>
> In MySQL there was type called INT UNSIGNED, where I used
> to keep values from 1 to 4294967295 without any problems.
> 1 is '00000000000000000000000000000001' in binary, and
> 4294967295 is '11111111111111111111111111111111'.
>
> I also was able to do f.e. 'SELECT xxx WHERE (xxx & 2147483648)'
> and get everything I want.
> 2147483648 is '10000000000000000000000000000000' in binary.
>
> Nevertheless, with PostgreSQL I have troubles. I didn't find
> any type which will help me to do everything above mentioned.
>
> May be someone of you was in the same situation, or has enough
> knowledge to help me with that?
I think all of the postgres types are signed. An int8 will store the
values (at the cost of alot of extra bits). I think if you were
willing to do a little coding you'd probably be able to make a
uint4 type (but I don't know what'd be involved in actually doing that)
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