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.
Here's a patch that more closely matches the ideas proposed.
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