Re: Separate DDL and SQL users

Hi Helio,

I've tried something similar however, I believe what you're suggesting
only works on a single table if I under stand correctly? for example:

GRANT SELECT, INSERT, UPDATE, DELETE ON migration TO live_application;

fails with the error:

ERROR: relation "migration" does not exist
SQL state: 42P01

On 11/03/2016, Helio Campos Mello de Andrade <helio.campos@gmail.com> wrote:
> Hi Rob,
>
>  - Does this helps?
>
> THE RE_MIGRATION_ROLE
> =====================
>
> # Creating the role
> ## Create the role with your permissions
> CREATE ROLE re_migration WITH optional_permissions;
> ## Grant role ALL permissions in the database migration
> GRANT ALL ON migration TO re_migration;
> ## Make everyone in this role to automaticaly have all the role's
> privileges
> ALTER ROLE re_migration INHERIT;
>
> ## Create the user
> CREATE USER migration_user1 ....;
> GRANT re_migration TO migration_user1;
>
> THE LIVE_APPLICATION_ROLE
> =========================
>
> # Creating the role
> ## Create the role with your permissions
> CREATE ROLE live_application WITH optional_permissions;
> ## Grant role SELECT, INSERT, UPDATE, DELETE permissions in the database
> migration
> GRANT SELECT, INSERT, UPDATE, DELETE ON migration TO live_application;
> ## Make everyone in this role to automaticaly have all the role's
> privileges
> ALTER ROLE live_application INHERIT;
>
> ## Create the user
> CREATE USER live_app_user1 ....;
> GRANT live_application TO live_app_user1;
>
> Regards,
>
> --
> Helio Campos Mello de Andrade
>
> http://training.linuxfoundation.org/certification/verify-linux-certifications
> (ID: LFCS-1500-0312-0100, Last name: Andrade)
> http://www.expertrating.com/reports/transcript.aspx?transcriptid=1608144
> http://www.expertrating.com/reports/transcript.aspx?transcriptid=2962390
>
> 2016-03-11 8:18 GMT-03:00 Rob Emery <re-pgsql@codeweavers.net>:
>
>> Hello All,
>>
>> So we're looking at automating our migrations against PG for the
>> developers so that it's simple enough for them and no maintenance for me.
>> I'm struggling to find a role/permissions structure that works; we've
>> come
>> from SQL Server so we're used to having DBRoles.
>>
>> So I want the re_migration role to be able to create tables, sequences
>> etc
>> and grant to other users etc; yet I want the live_application role to be
>> able to select,insert,update,delete.
>>
>> It seems that the only real solution here is to have the db owned by
>> re_migration, then in every migration GRANT SELECT,INSERT,UPDATE,DELETE
>> to
>> the live_application role?
>>
>> Previously I've always set the owner on tables etc to 'postgres' so that
>> it's not bound to any special user.
>>
>> Any suggestions?
>>
>> Thanks,
>> Rob
>>
>> <https://www.codeweavers.net>
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--
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Infrastructure Director

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