Hi Sergey,
> It seems that bytea is your personal interest, since you continue to impose your bytea when a better solution has already been found with uuid_encode() and uuid_decode().
In the previous messages Masahiko Sawada wrote:
> Or providing
> 'uuid_encode(uuid, format text) -> text' and 'uuid_decode(text, format
> text) -> uuid' might make sense too, but I'm not sure. I'd like to
> hear opinions from other hackers too.
I merely shared my personal opinion on why I think this is a bad idea.
Let's see what other people think.
-- 
Best regards,
Aleksander Alekseev
_____________________
You didn't give any arguments in favor of your opinion