Ron,
That wouldn't come even close to what pg_read_all_data grants.
A role assigned to pg_read_all_data automatically has the ability to read everything, in every schema that exists now or in the future.
The old way, your suggestion, means that you have to keep rerunning that command everytime someone creates a schema, creates a table, creates a view, recreates a table, recreates a view, etc. for all eternity. Not only that, you have to tailor the command to each new schema, etc.
This makes shared privs much more streamlined and removes the chance that a user will forget to assign privs to objects that they create.
I hope that helps make it clearer.
rik.
In PostgreSQL 16+ the built in roles such as pg_read_all_data and pg_write_all_data are a welcome addition to permission setting in PostgreSQL.
Unfortunately they appear to be server-wide roles.
Woud it be possible to have roles like these that are database specific?
If there are 100 databases on a server, it would be extremely helpful to be able to do something like:
grant pg_read_all_data on database foo to user_role;
Otherwise these roles are unusable from a practical stand point on servers with multiple unrelated databases.
How about
ALTER DEFAULT PRIVILEGES IN SCHEMA foo1, foo2, foo3, ... GRANT SELECT ON ALL TABLE TO bar;
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