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In a backup manifest, WAL-Ranges stores the range of WAL that is required for the backup to be valid. pg_verifybackup would then internally use pg_waldump for the checks based on this data. When the timeline where the backup started was more than 1 with a history file looked at for the manifest data generation, the calculation of the WAL range for the first timeline to check was incorrect. The previous logic used as start LSN the start position of the first timeline, but it needs to use the start LSN of the backup. This would cause failures with pg_verifybackup, or any tools making use of the backup manifests. This commit adds a test based on a logic using a self-promoted node, making it rather cheap. Author: Kyotaro Horiguchi Discussion: https://postgr.es/m/20210818.143031.1867083699202617521.horikyota.ntt@gmail.com Backpatch-through: 13 |
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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: 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/.