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Can be set to the empty string, or to either or both of "set" or "inherit". If set to a non-empty value, a non-superuser who creates a role (necessarily by relying up the CREATEROLE privilege) will grant that role back to themselves with the specified options. This isn't a security feature, because the grant that this feature triggers can also be performed explicitly. Instead, it's a user experience feature. A superuser would necessarily inherit the privileges of any created role and be able to access all such roles via SET ROLE; with this patch, you can configure createrole_self_grant = 'set, inherit' to provide a similar experience for a user who has CREATEROLE but not SUPERUSER. Discussion: https://postgr.es/m/CA+TgmobN59ct+Emmz6ig1Nua2Q-_o=r6DSD98KfU53kctq_kQw@mail.gmail.com
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download/ See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.