0e0174b497
Since commit 8b1dccd37c7, the PREPARE TRANSACTION WAL record includes information about dropped statistics entries. However, the WAL resource manager description function for PREPARE TRANSACTION record failed to parse this information correctly and always assumed there were no such entries. As a result, for example, pg_waldump could not display the dropped statistics entries stored in PREPARE TRANSACTION records. The root cause was that ParsePrepareRecord() did not set the number of statistics entries to drop on commit or abort. These values remained zero-initialized and were never updated from the parsed record. This commit fixes the issue by properly setting those values during parsing. With this fix, pg_waldump can now correctly report dropped statistics entries in PREPARE TRANSACTION records. Back-patch to v15, where commit 8b1dccd37c7 was introduced. Author: Daniil Davydov <3danissimo@gmail.com> Reviewed-by: Fujii Masao <masao.fujii@gmail.com> Discussion: https://postgr.es/m/CAJDiXgh-6Epb2XiJe4uL0zF-cf0_s_7Lw1TfEHDMLzYjEmfGOw@mail.gmail.com Backpatch-through: 15
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/.