Re: Re: Creating a role with read only privileges but user is allowed to change password - Mailing list pgsql-general

​ I​

 suggest that you move the password to a separate table (my_role_password) with 2 columns:

1. my_role_id
2. password.

This way you can make the my_role table totally unalterable by the user, yet they can change their own password.

Actually, you should NOT be storing passwords in plain text, they should be stored as a secure hash (better than MD5).

​I have no clue what you are trying to get at here...the core problem is with database defined roles - which are maintained in the system catalog - and the fact that marking a session read-only disallows updates to the system catalog...

I do not see how adding a user table with role and password overcomes that problem since the user table would be read-only too - so how would they still be able to change their password if the cannot alter the table (data alter, not structure).

David J.

I was thinking of using privileges to control access, for user 'fred':

REVOKE ALL ON my_role FROM fred;
GRANT SELECT ON my_role TO fred;

That's the guts of it, you will obviously need to check other tables and their appropriate privileges.

Note that both commands have the option 'ALL TABLES IN SCHEMA schema_name'.


Cheers,
Gavin

P.S. You forgot to include my name (and date/time) from the bit you quoted from me!