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This isn't strictly necessary, but in theory it might matter if in the future the width of the nbtree special area changes -- its total size might not be an even number of MAXALIGN() quantums, even with padding. PageInit() MAXALIGN()s all special area offsets, but amcheck uses the offset to perform initial basic validation of line pointers, so we don't rely on the offset from the page header. The real reason to do this is to set a good example for new code that adds amcheck coverage for other index AMs. Reported-By: Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com> Discussion: https://postgr.es/m/CALj2ACUMqTR9nErh99FbOBmzCXE9=gXNqhBiwYOhejJJS1LXqQ@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/.