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The documented intent is for all columns except subconninfo to be publicly readable. However, this has been overlooked twice. subsynccommit has never been readable since it was introduced, nor has the oid column (which is important for joining). Given the lack of previous complaints, it's not clear that it's worth doing anything about this in the back branches. But there's still time to fix it inexpensively for v14. Per report from Israel Barth (via Euler Taveira). Patch by Euler Taveira, possibly-vain comment updates by me. Discussion: https://postgr.es/m/b8f7c17c-0041-46b6-acfe-2d1f5a985ab4@www.fastmail.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/.