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XLogRecordAssemble() may be called multiple times before inserting a record in XLogInsertRecord(), and the amount of FPIs generated inside a record whose insertion is attempted multiple times may vary. The logic added in f9a09aa29520 touched directly pgWalUsage in XLogRecordAssemble(), meaning that it could be possible for pgWalUsage to be incremented multiple times for a single record. This commit changes the code to use the same logic as the number of FPIs added to a record, where XLogRecordAssemble() returns this information and feeds it to XLogInsertRecord(), updating pgWalUsage only when a record is inserted. Reported-by: Shinya Kato <shinya11.kato@gmail.com> Discussion: https://postgr.es/m/CAOzEurSiSr+rusd0GzVy8Bt30QwLTK=ugVMnF6=5WhsSrukvvw@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.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.