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These subsystems have some complicating properties, making them slightly harder to convert than most: - The initialization callbacks of some of these subsystems have dependencies, i.e. they need to be initialized in the right order. - The ProcGlobal pointer still needs to be inherited by the BackendParameters mechanism on EXEC_BACKEND builds, because ProcGlobal is required by InitProcess() to get a PGPROC entry, and the PGPROC entry is required to use LWLocks, and usually attaching to shared memory areas requires the use of LWLocks. - Similarly, ProcSignal pointer still needs to be handled by BackendParameters, because query cancellation connections access it without calling InitProcess Reviewed-by: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com> Reviewed-by: Matthias van de Meent <boekewurm+postgres@gmail.com> Reviewed-by: Daniel Gustafsson <daniel@yesql.se> Discussion: https://www.postgresql.org/message-id/CAExHW5vM1bneLYfg0wGeAa=52UiJ3z4vKd3AJ72X8Fw6k3KKrg@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/.