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The documentation stated that existing connections would continue to function normally after the OOM killer terminated the postmaster. In fact, those connections eventually terminate when server processes detect the postmaster's death. Clarify that the OOM killer can terminate either the postmaster or a child process. If the postmaster is killed, the server must be restarted. If a child process is killed, PostgreSQL typically terminates the remaining connections and either recovers automatically or shuts down, depending on restart_after_crash. Backpatch to all supported versions. Author: Takeshi Ideriha <iderihatakeshi@gmail.com> Reviewed-by: Manuel Reyes Bravo <manuelreyesbravo@gmail.com> Reviewed-by: Fujii Masao <masao.fujii@gmail.com> Discussion: https://postgr.es/m/ce269321-a7f4-48f4-a9ca-a4a4983b9fd6@gmail.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/18/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/18/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/.