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BufFileSize() can't use off_t, because it's only 32 bits wide on some systems. BufFile objects can have many 1GB segments so the total size can exceed 2^31. The only known client of the function is parallel CREATE INDEX, which was reported to fail when building large indexes on Windows. Though this is technically an ABI break on platforms with a 32 bit off_t and we might normally avoid back-patching it, the function is brand new and thus unlikely to have been discovered by extension authors yet, and it's fairly thoroughly broken on those platforms anyway, so just fix it. Defect in 9da0cc35. Bug #15460. Back-patch to 11, where this function landed. Author: Thomas Munro Reported-by: Paul van der Linden, Pavel Oskin Reviewed-by: Peter Geoghegan Discussion: https://postgr.es/m/15460-b6db80de822fa0ad%40postgresql.org Discussion: https://postgr.es/m/CAHDGBJP_GsESbTt4P3FZA8kMUKuYxjg57XHF7NRBoKnR%3DCAR-g%40mail.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/.