![]() There is no ALTER DEFAULT PRIVILEGES statement in the SQL standard.Ah, I'm getting myself twisted up. That’s because per-schema default privileges can only add privileges to the global setting, not remove privileges granted by it. ![]() The following command has no effect, unless it is undoing a matching GRANT: ALTER DEFAULT PRIVILEGES IN SCHEMA public REVOKE EXECUTE ON FUNCTIONS FROM PUBLIC Note however that you cannot accomplish that effect with a command limited to a single schema. Remove the public EXECUTE permission that is normally granted on functions, for all functions subsequently created by role admin: ALTER DEFAULT PRIVILEGES FOR ROLE admin REVOKE EXECUTE ON FUNCTIONS FROM PUBLIC Undo the above, so that subsequently-created tables won’t have any more permissions than normal: ALTER DEFAULT PRIVILEGES IN SCHEMA myschema REVOKE SELECT ON TABLES FROM PUBLIC ĪLTER DEFAULT PRIVILEGES IN SCHEMA myschema REVOKE INSERT ON TABLES FROM webuser Grant SELECT privilege to everyone for all tables (and views) you subsequently create in schema myschema, and allow role webuser to INSERT into them too: ALTER DEFAULT PRIVILEGES IN SCHEMA myschema GRANT SELECT ON TABLES TO PUBLIC ĪLTER DEFAULT PRIVILEGES IN SCHEMA myschema GRANT INSERT ON TABLES TO webuser If you wish to drop a role for which the default privileges have been altered, it is necessary to reverse the changes in its default privileges or use DROP OWNED BY to get rid of the default privileges entry for the role. The meaning of the privilege values is the same as explained for \dp under GRANT. Use psql’s \ddp command to obtain information about existing assignments of default privileges. REVOKE, except that one is setting permissions for a whole class of objects rather than specific named objects. This parameter, and all the other parameters in abbreviated_grant_or_revoke, act as described under The name of an existing role to grant or revoke privileges for. IN SCHEMA is not allowed when setting privileges for schemas, since schemas can’t be nested. IN SCHEMA is omitted, the global default privileges are altered. If specified, the default privileges are altered for objects later created in that schema. IfįOR ROLE is omitted, the current role is assumed. The name of an existing role of which the current role is a member. Per-schema REVOKE is only useful to reverse the effects of a previous per-schema GRANT. This means you cannot revoke privileges per-schema if they are granted globally (either by default, or according to a previous ALTER DEFAULT PRIVILEGES command that did not specify a schema). However, this behavior can be changed by altering the global default privileges with ALTER DEFAULT PRIVILEGES.ĭefault privileges that are specified per-schema are added to whatever the global default privileges are for the particular object type. The privileges can be set globally (i.e., for all objects created in the current database), or just for objects created in specified schemas.Īs explained under GRANT, the default privileges for any object type normally grant all grantable permissions to the object owner, and may grant some privileges to PUBLIC as well. ![]() You can change default privileges only for objects that will be created by yourself or by roles that you are a member of. It is not possible to set default privileges for functions and procedures separately.) In earlier Greenplum Database releases, only the word FUNCTIONS was allowed. ( ROUTINES is preferred going forward as the standard term for functions and procedures taken together. The words FUNCTIONS and ROUTINES are equivalent in this command. For this command, functions include aggregates and procedures. (It does not affect privileges assigned to already-existing objects.) Currently, only the privileges for schemas, tables (including views and foreign tables), sequences, functions, and types (including domains) can be altered. GRANT ĪLTER DEFAULT PRIVILEGES allows you to set the privileges that will be applied to objects created in the future.
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