=?iso-8859-9?B?x2Hw/Wwg3mVrZXI=?= <cagils@biznet.com.tr> writes:
> Then I change a user's passwd by UPDATE pg_shadow set passwd blablabla
> SQL command to for example 'qwerty' without md5 hashing.
You shouldn't do that. There is an ALTER USER command for changing
users' passwords. Any time you directly hack on the system catalogs,
it's up to you to know what you are doing and what the consequences
will be.
regards, tom lane