[ADMIN] backup a table

[Miriam Fernández Galicia]

Hello!!!
I 'm new in Postgres 7.2 my question is, exists some way to backup only a table and no  the all database with pg_dump or another utility, too  I used COPY but my problem is logged like postgres user  the message  that send me is:

bash-2.05a$ psql gheo -Upostgres
Password:
psql: FATAL 1:  Password authentication failed for user "postgres"

And like user gheo, I can enter to the database but if I want to use copy:

gheo=> copy cob_tit TO '/home/gheo/cob_tit.dat' delimiters '|' ;

ERROR:  You must have Postgres superuser privilege to do a COPY directly to or from a file.  Anyone can COPY to stdout or from stdin.  Psql's \copy command also works for anyone.

regards

   Miriam Fernández