93a6be63a5
CREATE/ALTER/DROP USER MAPPING are now allowed either by the server owner or by a user with USAGE privileges for his own user name. This is more or less what the SQL standard wants anyway (plus "implementation-defined") Hide information_schema.user_mapping_options.option_value, unless the current user is the one associated with the user mapping, or is the server owner and the mapping is for PUBLIC, or is a superuser. This is to protect passwords. Also, fix a bug in information_schema._pg_foreign_servers, which hid servers using wrappers where the current user did not have privileges on the wrapper. The correct behavior is to hide servers where the current user has no privileges on the server.
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: http://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. Changes between all PostgreSQL releases are recorded in the file HISTORY. 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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.