Re: non-recursive WITH clause support

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http://momjian.postgresql.org/cgi-bin/pgpatches_hold

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Gregory Stark wrote:
> "David Fetter" <david(at)fetter(dot)org> writes:
>
> > On Mon, Apr 09, 2007 at 06:43:08PM -0400, Tom Lane wrote:
> >
> >> So this does not really add any new functionality, it's just variant
> >> syntax for something you can do about as easily without it, right?
> >
> > Not totally as easily. For example, you can do some kinds of
> > aggregation with a few fewer keystrokes.
>
> I think "fewer keystrokes" is exactly what Tom meant by a variant syntax
> without new functionality. That's an accurate description.
>
> I suppose it depends in part on how important we think it is to add variant
> syntaxes just because they're blessed by the ANSI standard. If this were a
> syntax we were creating just for our user's convenience it would be a pretty
> weak justification for an incompatibility. But if there are users who expect
> this syntax to work because it's standard then it could be considered an
> omission in our standards compliance.
>
> I'm actually not too sure what the answer is. I hadn't heard of it before the
> discussion about recursive queries myself.
>
> --
> Gregory Stark
> EnterpriseDB http://www.enterprisedb.com
>
>
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Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

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