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Recent enhancements to rmgr desc routines that made the output summarize certain block data (added by commits7d8219a4and1c453cfd) dealt with records that lack relevant block data (and so have nothing to give a more detailed summary of) by testing !DecodedBkpBlock.has_image. As a result, more detailed descriptions of block data were not output when wal_consistency_checking was enabled. This bug affected records with summarizable block data that also happened to have an FPI that the REDO routine isn't supposed to apply (FPIs used for consistency checking purposes only). The presence of such an FPI was incorrectly taken to indicate the absence of block data. To fix, test DecodedBkpBlock.has_data, not !DecodedBkpBlock.has_image. This is the exact condition that we care about, not an inexact proxy. Author: Peter Geoghegan <pg@bowt.ie> Discussion: https://postgr.es/m/CAH2-Wzm5Sc9cBg1qWV_cEBfLNJCrW9FjS-SoHVt8FLA7Ldn8yg@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/.