Обсуждение: \copy only select rows

Is there a way to do a dump of a database using a select statement?

eg: \copy trd to 'file' select * from table limit 10

am  Thu, dem 30.08.2007, um 14:59:06 +0800 mailte Ow Mun Heng folgendes:
> Is there a way to do a dump of a database using a select statement?

A complete database or just a simple table?


>
> eg: \copy trd to 'file' select * from table limit 10

Since 8.2 you can use COPY (select * from table) TO 'file'.

Other solution, use a regular UNIX-Shell and psql, a la

echo "select * from table limit 10;" | psql <database> > file


Andreas
--
Andreas Kretschmer
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On Thu, 2007-08-30 at 09:14 +0200, A. Kretschmer wrote:
> am  Thu, dem 30.08.2007, um 14:59:06 +0800 mailte Ow Mun Heng folgendes:
> > Is there a way to do a dump of a database using a select statement?
>
> A complete database or just a simple table?

a simple table.. couple million records, want some of them for testing..
say ~100pcs

(right now, using insert into foo select * fromt able limit 10)

>
> >
> > eg: \copy trd to 'file' select * from table limit 10
>
> Since 8.2 you can use COPY (select * from table) TO 'file'.

superuser priviledge only right?

> Other solution, use a regular UNIX-Shell and psql, a la
>
> echo "select * from table limit 10;" | psql <database> > file

I want them to be in comma delimited format.. will the output be
importable again using \copy into pg?