ab274a1e96
calcSumX2 is used to inform the aggregate transition function whether it should include the square of the transition value in the aggregate state. The deserialize functions for various numeric aggregates that do use calcSumX2 weren't properly setting the property to true. This does not matter in core as we never perform any aggregate transitions after a deserialize operation. This fix is only required for external code which plumbs aggregate paths together in such a way that could result in aggregate transitions being performed after states have been deserialized. Author: Maxime Schoemans <maxime.schoemans@enterprisedb.com> Reviewed-by: Andrey Borodin <x4mmm@yandex-team.ru> Discussion: https://postgr.es/m/FEBF5C3D-CC53-455F-AA9D-4D377A2E957C@enterprisedb.com Backpatch-through: 14
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/19/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/19/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/.