Revoke owner's privilege on the table

Hello,

    Does anybody know as I do to revoke the privilege of the user owner of a
certain table, because the command, for example, "REVOKE ALL ON TABLE test
FROM jonh;" is not working? Respectfully,

Maximiliano A. Pedatella
Fone: +55 (62) 201-6571
Fax  : +55 (62) 201-6573
mailto:maxp@administracao.go.gov.br