pg_dump: COPY vs INSERT

[Colton A Smith <smith@xxxxxxxxxx>]

Hi:

  When I try 'pg_dump -f output.txt -t <tablename> -d <databasename>',
output.txt is always filled with INSERT statements.  The same holds
true if I use the '-a' option as well.  How can I configure pg_dump to 
output a file I can use with COPY instead?

Thanks as always!