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On reflection, the submitted patch didn't really work to prevent the request size from exceeding MaxAllocSize, because of the fact that we'd happily round nbuckets up to the next power of 2 after we'd limited it to max_pointers. The simplest way to enforce the limit correctly is to round max_pointers down to a power of 2 when it isn't one already. (Note that the constraint to INT_MAX / 2, if it were doing anything useful at all, is properly applied after that.) |
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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. 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/.