This new callback gives fixed-numbered stats the possibility to take actions based on the area of shared memory allocated for them. This removes from pgstat_shmem.c any knowledge specific to the types of fixed-numbered stats, and the initializations happen in their own files. Like b68b29bc8fec, this change is useful to make this area of the code more pluggable, so as custom fixed-numbered stats can take actions after their shared memory area is initialized. Reviewed-by: Bertrand Drouvot Discussion: https://postgr.es/m/Zot5bxoPYdS7yaoy@paquier.xyz
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/.