ALTER TABLE can NOT use set (OIDS=true)

Hi,

    I create a table, and then i want to add oid column, but only can use "set with oids", not use "set (oids = true)"

    while create table support both. Is this a problem?

    Here is is my testcase, thank you.

postgres=# create table x(a int) with(oids = false);
CREATE TABLE
postgres=# alter table x set(fillfactor = 90);
ALTER TABLE
postgres=# alter table x set (oids = true);
ERROR:  unrecognized parameter "oids"
postgres=#
postgres=# alter table x set with oids;
ALTER TABLE
postgres=#