Re: UUID - Data type inefficient

On Jul 10, 5:05 pm, m(dot)(dot)(dot)(at)mark(dot)mielke(dot)cc (Mark Mielke) wrote:
> Mark Mielke wrote:
> > I didn't notice that he put 16. Now I'm looking at uuid.c in
> > PostgreSQL 8.3.3 and I see that it does use 16, and the struct
> > pg_uuid_t is length 16. I find myself confused now - why does
> > PostgreSQL define UUID_LEN as 16?
>
> > I will investigate if I have time tonight. There MUST be some mistake
> > or misunderstanding. 128-bit numbers should be stored as 8 bytes, not 16.
>
> Grrrr.... Kless you've confused me.  32-bit numbers = 4 bytes, 64-bit
> numbers = 8 bytes, 128-bit numbers = 16 bytes.
>
> You are out to lunch and you dragged me with you. Did we have beer at
> least? :-)
>
> Cheers,
> mark
>
> --
xDxD I see that the PostgreSQL developers have sense of humor :) I
like it.

It has been a failure mine. I question about that in the IRC, anybody
says me that structure but also say me of see here:

pgsql/src/backend/utils/adt/uuid.c:45:uuid_out

thing that I didn't make.

But it's clear that this problem has been well resolved.

Greetings!