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Commit5ecc0d738removed the hard-wired superuser checks in lo_import and lo_export in favor of protecting them with SQL permissions, but failed to adjust the documentation to match. Fix that, and add a <caution> paragraph pointing out the nontrivial security hazards involved with actually granting such permissions. (It's still better than ALLOW_DANGEROUS_LO_FUNCTIONS, though.) Also, commitae20b23a9caused large object read/write privilege to be checked during lo_open() rather than in the actual read or write calls. Document that. Discussion: https://postgr.es/m/CAB7nPqRHmNOYbETnc_2EjsuzSM00Z+BWKv9sy6tnvSd5gWT_JA@mail.gmail.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/.