From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Marko Kreen <markokr(at)gmail(dot)com>, Bruno Wolff III <bruno(at)wolff(dot)to>, Josh Berkus <josh(at)agliodbs(dot)com>, PostgreSQL-patches <pgsql-patches(at)postgresql(dot)org> |
Subject: | Re: [HACKERS] Inconsistent syntax in GRANT |
Date: | 2006-01-07 05:58:18 |
Message-ID: | 200601070558.k075wIO21285@candle.pha.pa.us |
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Lists: | pgsql-hackers pgsql-patches |
Should UPDATE also allow currval()? Your logic below seems to suggest
that.
---------------------------------------------------------------------------
Tom Lane wrote:
> I wrote:
> > Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> >> Does the standard require USAGE to support currval?
>
> > currval isn't in the standard (unless I missed something), so it has
> > nothing to say one way or the other on the point.
>
> Wait, I take that back. Remember our previous discussions about this
> point: the spec's NEXT VALUE FOR construct is *not* equivalent to
> nextval, because they specify that the sequence advances just once per
> command even if the command says NEXT VALUE FOR in multiple places.
> This means that NEXT VALUE FOR is effectively both nextval and currval;
> the first one in a command does nextval and the rest do currval.
>
> Accordingly, I think it's reasonable to read the spec as saying that
> USAGE privilege encompasses both nextval and currval.
>
> regards, tom lane
>
--
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