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This commit expands the coverage of pg_hba.conf with checks specific to role memberships (one "root" role combined with a member and a non-member). Coverage is added for the database keywords "samegroup" and "samerole", where the specified role has to be be a member of the role with the same name as the requested database, and '+' on the user entry, where members are allowed. These tests are plugged in the authentication test 001_password.pl as of extra connection attempts combined with resets of pg_hba.conf, making them rather cheap. Author: Nathan Bossart Reviewed-by: Tom Lane, Michael Paquier Discussion: https://postgr.es/m/20221009211348.GB900071@nathanxps13
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/.