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Commit d114cc53 overlooked the fact that pg_upgrade'd B-Tree indexes have leaf page high keys whose offset numbers do not match the one from the copy of the tuple one level up (the copy stored with a downlink for leaf page's right sibling page). This led to false positive reports of corruption from bt_index_parent_check() when it was called to verify a pg_upgrade'd index. To fix, skip comparing the offset number on pg_upgrade'd B-Tree indexes. Author: Anastasia Lubennikova <a.lubennikova@postgrespro.ru> Author: Peter Geoghegan <pg@bowt.ie> Reported-By: Andrew Bille <andrewbille@gmail.com> Diagnosed-By: Anastasia Lubennikova <a.lubennikova@postgrespro.ru> Bug: #16619 Discussion: https://postgr.es/m/16619-aaba10f83fdc1c3c@postgresql.org Backpatch: 13-, where child check was enhanced.
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/.