Re: \copy combine with SELECT

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От jia ding
Тема Re: \copy combine with SELECT
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Msg-id 91ae6e350603170858k39e05da9q9447ef941b55089c@mail.gmail.com
обсуждение исходный текст
Ответ на Re: \copy combine with SELECT  (Martijn van Oosterhout <kleptog@svana.org>)
Список pgsql-general
Thanks Martijn.

\d test
       Table "public.test"
 Column |  Type   | Modifiers
 id         | integer |
 score    | integer |

I tried \copy test (score) to test.txt. It works well.

But, suppose I want to select rows  with score > 20 (just an example).
Then,\copy table [ ( column_list ) ] { from | to } filename  doesn't
help much.


Have a nice weekend!

N



On 3/17/06, Martijn van Oosterhout <kleptog@svana.org> wrote:
> On Fri, Mar 17, 2006 at 10:45:16AM +1100, Chris wrote:
> > Doesn't look like \copy lets you specify which fields to include though.
>
> Ofcourse it does, you just need to use parenthesis. From the manpage:
>
> \copy table [ ( column_list ) ] { from | to } filename | stdin | stdout
> [ with ] [ oids ] [ delimiter [as]  'character' ] [ null [as]  'string' ]
>
> Have a nice day,
> --
> Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> > Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a
> > tool for doing 5% of the work and then sitting around waiting for someone
> > else to do the other 95% so you can sue them.
>
>
> -----BEGIN PGP SIGNATURE-----
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>

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