a590f266e4
The code that generates the BRIN_XLOG_UPDATE removes the buffer reference when the page that's target for the updated tuple is freshly initialized. This is a pretty usual optimization, but was breaking the case where the revmap buffer, which is referenced in the same WAL record, is getting a backup block: the replay code was using backup block index 1, which is not valid when the update target buffer gets pruned; the revmap buffer gets assigned 0 instead. Make sure to use the correct backup block index for revmap when replaying. Bug reported by Fujii Masao.
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: http://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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.