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Use postgres_fe.h, since this is frontend code. Pretend that we've heard of project style guidelines for, eg, #include order. Use BlockNumber not int arithmetic for block numbers, to avoid misbehavior with relations exceeding 2^31 blocks. Avoid an unnecessary strict-aliasing warning (per report from Michael Banck). Const-ify assorted stuff. Avoid scribbling on the output of readdir() -- perhaps that's safe in practice, but POSIX forbids it, and this code has so far earned exactly zero credibility portability-wise. Editorialize on an ambiguously-worded message. I did not touch the problem of the "buf" local variable being possibly insufficiently aligned; that's not specific to this code, and seems like it should be fixed as part of a different, larger patch. Discussion: https://postgr.es/m/1535618100.1286.3.camel@credativ.de
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/.