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Even when allow_system_table_mods is not set, we allow creation of any type of SQL object in pg_catalog, except for relations. And you can get relations into pg_catalog, too, by initially creating them in some other schema and then moving them with ALTER .. SET SCHEMA. So this restriction, which prevents relations (only) from being created in pg_catalog directly, is fairly pointless. If we need a safety mechanism for this, it should be placed further upstream, so that it affects all SQL objects uniformly, and picks up both CREATE and SET SCHEMA. For now, just rip it out, per discussion with Tom Lane. |
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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/.