On Tue, Mar 20, 2012 at 8:28 AM, Alexander Reichstadt <lxr@xxxxxxx> wrote:
> Hi,
>
> I look for a way to reproduce the encrypted string stored as a password by means other than using the CREATE ROLE command.
>
> When using CREATE ROLE........PASSWORD 'somepass' the resulting string for rolpassword in pg_authid always starts with md5, suggesting it would create some md5 string. So I thought to use SELECT md5('somepass') to get the same.
>
> But the two strings differ. Is there a function that does that outside the create role context?
See pg_authid's explanation of the rolpassword column:
http://www.postgresql.org/docs/9.1/static/catalog-pg-authid.html
which you can reproduce via:
SELECT 'md5' || MD5(role_password_here || role_name_here);
Josh
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