| From: | Merlin Moncure <mmoncure(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Alvaro Herrera <alvherre(at)commandprompt(dot)com>, Aidan Van Dyk <aidan(at)highrise(dot)ca>, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Hannu Krosing <hannu(at)2ndquadrant(dot)com>, "David E(dot) Wheeler" <david(at)kineticode(dot)com>, Peter Eisentraut <peter_e(at)gmx(dot)net>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: RfD: more powerful "any" types |
| Date: | 2009-09-11 15:46:26 |
| Message-ID: | b42b73150909110846t15421c8ds456798b24ae4675@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Sep 11, 2009 at 10:38 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
>> Is this really all that hard? I'm thinking it could be implemented by
>> using the real C sprintf underneath, passing one % specifier and its
>> corresponding parameter at a time, coerced to whatever the conversion
>> specifier specifies.
>
> The only disadvantage I can see of that is that it would lose precision
> for NUMERIC. I'd really like to be able to write "%300.100f" and have it
> Do The Right Thing with a 300-digit numeric input.
that could be simply worked around by formatting the numeric in sql
and passing it to printf as %s.
merlin
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