Re: [HACKERS] Re: initdb.sh fixed

> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > Seems either $USER or $LOGNAME should be set in all cases.
>
> One or both is probably set in most shell environments ... but
> it's not necessarily *right*. If you've su'd to postgres from
> your login account, these env vars may still reflect your login.
>
> > I am now using:
> > POSTGRES_SUPERUSERID="`id -u 2>/dev/null || echo 0`"
> > Let's see how portable that is?
>
> Some quick experimentation shows that id -u isn't too trustworthy,
> which is a shame because it's the POSIX standard. But I find that
> the SunOS implementation ignores -u:
>
> $ id -u
> uid=6902(tgl) gid=50(users0) groups=50(users0)
>
> And no doubt there will be platforms that haven't got "id" at all.
>
> It might be best to provide a little bitty C program that calls
> geteuid() and prints the result...

We could argue that Postgres is the super-user for the database, it
should be zero userid.

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