Обсуждение: copying table to a file

Hi,
I am attempting to copy the contents of a table to a file, like this:

foodserver=> COPY company TO '/home/peter/copytest.out';


But I keep getting this error:

ERROR:  COPY command, running in backend with effective uid 100, could not
open file '/home/peter/copytest.out' for writing.  Errno = Permission
denied (13).

Does anybody know how I can fix this so I have permission to open files?

Thanks,

Tyler Wood
twood@uwm.edu

Tyler Robert Wood wrote:
>
> Hi,
> I am attempting to copy the contents of a table to a file, like this:
>
> foodserver=> COPY company TO '/home/peter/copytest.out';
>
> But I keep getting this error:
>
> ERROR:  COPY command, running in backend with effective uid 100, could not
> open file '/home/peter/copytest.out' for writing.  Errno = Permission
> denied (13).

Use \copy in psql or do it yourself from within
a program. COPY tells the database server to
copy the data, which may not even be on the
same machine...

> Does anybody know how I can fix this so I have permission to open files?

It's using the backend permissions, which probably can't
write anywhere. Use \copy and be happy...
--
Martijn van Oosterhout <kleptog@cupid.suninternet.com>
http://cupid.suninternet.com/~kleptog/

On Fri, 16 Jun 2000 (Yesterday), Tyler Robert Wood wrote:

  TRW>
  TRW> Hi,
  TRW> I am attempting to copy the contents of a table to a file, like this:
  TRW>
  TRW> foodserver=> COPY company TO '/home/peter/copytest.out';
  TRW>
  TRW>
  TRW> But I keep getting this error:
  TRW>
  TRW> ERROR:  COPY command, running in backend with effective uid 100, could not
  TRW> open file '/home/peter/copytest.out' for writing.  Errno = Permission
  TRW> denied (13).
  TRW>
  TRW> Does anybody know how I can fix this so I have permission to open files?
Make allow access to '/home/peter' for user #100
Or better make in your home something like:

 $ cd /home/peter
 $ mkdir sql
 $ chmod 777 sql

and after this make

 foodserver=> COPY company TO '/home/peter/sql/copytest.out';

Attn: You can have "superuser" permission for work with files from sql!


Method #2:

 $ psql foodserver -c "COPY company TO stdout" -o /home/peter/copytest.out

This method don't need "superuser" permission...


--
      Trurl McByte, Capt. of StasisCruiser "Prince"
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