Re: [E-MASIVO][E-MASIVO]postgres_fdw user mapping and role inheritance

> Hi all,
>
> We're looking at using postgres_fdw, and while setting it up for a test
> using postgres 9.4.4, I noticed that it doesn't seem to honor role
> inheritance.
>
> For example, having created foreign_server:
>
> create role local_group with nologin;
> create role individual_user;
> grant local_group to individual_user;
>
> create user mapping for local_group
> server foreign_server
> options (user 'foreign_user', password '');
>
> create foreign table foreign_table (id serial, data text)
> server foreign_server
> options (schema_name 'some_schema', table_name 'some_table');
>
> When I tried this, individual_user could not select from foreign_table,
> even though I expected individual_user to inherit from local_group:

Please,

Select current_user;
???

Session authorization local_group;

psql> select * from foreign_table;

;-)

> ERROR: user mapping not found for "individual_user"
>
> It did work when I created a user mapping for individual_user (to verify
> that I had the other parts set up correctly):
>
> create user mapping for individual_user
> server foreign_server
> options (user 'foreign_user', password '');
>
>
> Am I missing something? Is there a way to tell postgres_fdw to allow
> individual_user to inherit user mappings from groups of which it is a
> part? Is there a reason that it doesn't allow it, or is it a bug or
> something that hasn't been implemented yet? (Will it be fixed or
> implemented in postgres 9.5?)
>
> Many thanks,
> Natalie
>
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Saludos,
Gilberto Castillo
ETECSA, La Habana, Cuba