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This patch allows "PGC_SUSET" parameters to be set by non-superusers if they have been explicitly granted the privilege to do so. The privilege to perform ALTER SYSTEM SET/RESET on a specific parameter can also be granted. Such privileges are cluster-wide, not per database. They are tracked in a new shared catalog, pg_parameter_acl. Granting and revoking these new privileges works as one would expect. One caveat is that PGC_USERSET GUCs are unaffected by the SET privilege --- one could wish that those were handled by a revocable grant to PUBLIC, but they are not, because we couldn't make it robust enough for GUCs defined by extensions. Mark Dilger, reviewed at various times by Andrew Dunstan, Robert Haas, Joshua Brindle, and myself Discussion: https://postgr.es/m/3D691E20-C1D5-4B80-8BA5-6BEB63AF3029@enterprisedb.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/.